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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Richard H Salter</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Dennis S Sargent</PersonNm>
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        <AverageHoursPerWeekRltdOrgRt>0.0</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Richard Weiner MD</PersonNm>
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      <TotalOtherCompensationAmt>417162</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
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      <NetIncomeFromGamingGrp>
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      <TotalRevenueGrp>
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      <GrantsToDomesticIndividualsGrp>
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      <BenefitsToMembersGrp>
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      <CompCurrentOfcrDirectorsGrp>
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      <CompDisqualPersonsGrp>
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      <FeesForServicesManagementGrp>
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      <FeesForServicesLegalGrp>
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      <FeesForServicesAccountingGrp>
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      <FeesForServicesLobbyingGrp>
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      <FeesForServicesProfFundraising>
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      <FeesForSrvcInvstMgmntFeesGrp>
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      <PymtTravelEntrtnmntPubOfclGrp>
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      <OtherExpensesGrp>
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        <FundraisingAmt>76311</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>FUDNRAISING COST ALLOCATION</Desc>
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        <FundraisingAmt>682907</FundraisingAmt>
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        <FundraisingAmt>16425</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>ALL OTHER EXPENSE</Desc>
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        <FundraisingAmt>20987</FundraisingAmt>
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      <ReceivablesFromOfficersEtcGrp>
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      <FSAuditedInd>true</FSAuditedInd>
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        <GrossReceiptsTotalAmt>437135</GrossReceiptsTotalAmt>
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      </FundraisingEventInformationGrp>
    </IRS990ScheduleG>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
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      <SupplementalNonqualRtrPlanInd>true</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>true</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Timothy O'Connor</PersonNm>
        <TitleTxt>Officer/EVP/CFO &amp; Treasurer</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>627294</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>24000</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>164200</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>31684</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>847178</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Howard R Grant JD MD</PersonNm>
        <TitleTxt>Trustee/Officer/President&amp; CEO</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>1049316</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>1613057</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>29298</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>34786</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>2726457</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Matthew J Woods</PersonNm>
        <TitleTxt>officer/VP Fin./Asst Treasurer</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>354544</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>22261</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>1739</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>34436</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>412980</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>David G Spackman JD</PersonNm>
        <TitleTxt>Officer/SVP gov affair + gen</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>384686</CompensationBasedOnRltdOrgsAmt>
        <BonusRelatedOrganizationsAmt>12900</BonusRelatedOrganizationsAmt>
        <OtherCompensationRltdOrgsAmt>16641</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>25884</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>25522</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>465633</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Dale M Lodge</PersonNm>
        <TitleTxt>TRUSTEE/OFFICER/CEOthru9/30/17</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>402449</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>92699</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>10600</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>23503</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>529251</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Richard Weiner MD</PersonNm>
        <TitleTxt>Trustee/CEO (10/1/17-current)</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>298882</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>2772</OtherCompensationRltdOrgsAmt>
        <DeferredCompRltdOrgsAmt>10831</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>24679</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>337164</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 4A-B</FormAndLineReferenceDesc>
        <ExplanationTxt>As required by this Form 990, Schedule J, Compensation Information, the compensation detail included in Winchester Hospital Foundation, Inc.(WHF) Form 990 for the fiscal year ended September 30, 2018 is calendar year 2017 detail. During the 2017 calendar year, Lahey Health System, Inc. and related organizations were participating employers in the Lahey Clinic 457(f) Non-Qualified Contribution Plan and the Lahey Clinic 457(b) retirement Savings Plan. Pursuant to these plans, eligible employees received certain retirement benefits and/or could defer part of their compensation. Under the definitions to this Form 990, these plans are considered supplemental non-qualified retirement plans. Amounts deferred by participants or received by participants and related to these plans are included in Form 990 Schedule J, Part II, Column B(iii), Other Reportable Compensation and/or Form 990, Schedule J, Part II, Column C, Deferred Compensation in accordance with the instructions to this Form 990. Lahey Clinic 457(f) Non-Qualified Defined Contribution Plan: For the period covered by this filing Mr. Timothy OConnor served as Executive Vice President, Chief Financial Officer, and Treasurer of the entities listed below and during the 2017 calendar year he received a $128,000 employer contribution to his 457f plan. This amount has been reported in Form 990, Schedule J, Part II, Column C, Deferred Compensation in accordance with the instructions to this Form 990. As of December 31, 2017, that amount was unvested. - Lahey Health System, Inc. - Lahey Clinic Foundation, Inc. - Lahey Clinic Hospital, Inc. - Lahey Clinic, Inc. - Lahey Health Shared Services, Inc. - Lahey Physician Community Organization I, Inc. - Northeast Hospital Corporation - Northeast Medical Practice, Inc. - Northeast Health System, Inc. - Northeast Senior Health Corporation, - Northeast Professional Registry of Nurses, Inc. - Northeast Behavioral Health Corporation - CAB Health and Recovery Services, Inc. - Health and Education Housing Services, Inc. - Seacoast Nursing and Rehabilitation Center, Inc. - Addison Gilbert Society, Inc. - Winchester Healthcare Management, Inc. - Winchester Hospital - Winchester Hospital Foundation, Inc. For the period covered by this filing, Dr. Howard Grant served as President, Chief Executive Officer and Trustee (Ex-Officio) for the entities listed below. Other Reportable Compensation for Dr. Grant includes $1,570,457 related to a 457f benefit. This amount represents a retirement benefit that was earned and accrued, although not vested, over a six-year period. The benefit contained a cliff vesting provision which was achieved in 2017. As required by Form 990, employer contributions for prior reporting periods were reported as deferred compensation in each previous year as accrued, even though when reported as deferred compensation the amounts were not vested. Those amounts are reported again in this filing as Other Reportable Compensation as required. - Lahey Health System, Inc. - Lahey Clinic Foundation, Inc. - Lahey Clinic Hospital, Inc. - Lahey Clinic, Inc. - Lahey Health Shared Services, Inc. - Lahey Physician Community Organization I, Inc. - Northeast Hospital Corporation - Northeast Medical Practice, Inc. - Northeast Health System, Inc. - Northeast Senior Health Corporation, - Northeast Professional Registry of Nurses, Inc. - Northeast Behavioral Health Corporation - CAB Health and Recovery Services, Inc. - Health and Education Housing Services, Inc. - Seacoast Nursing and Rehabilitation Center, Inc. - Addison Gilbert Society, Inc. - Winchester Healthcare Management, Inc. - Winchester Hospital - Winchester Hospital Foundation, Inc. Lahey Clinic 457(b) Retirement Savings Plan: As noted above, Lahey Health System, Inc. and related organizations were participating employers in the Lahey Clinic 457(b) Retirement Savings Plan. During the period covered by this filing, eligible employees were entitled to defer a portion of their income pursuant to this plan. This plan is completely employee funded. Employees listed in this Form 990 Part VII and Schedule J and who participated in this plan during the 2017 calendar year are listed below with the amounts deferred. In accordance with the instructions to this Form 990, these amounts have been included in Other Reportable Income for each employee listed here. Dr. Howard Grant, see above for titles and responsible legal entities; Amount deferred $18,000</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>The non-fixed payment bonuses reported in Schedule J, Part II, column (b)(ii) are determined by THE compensation committee, which includes trustees. In a subjective manner, the committee takes into account the achievements of both the organization and the individual TO DETERMINE THE APPROPRIATE AMOUNT OF SUCH BONUSES, WHICH INCLUDE, BUT ARE NOT LIMITED TO, THE ORGANIZATION MEETING ITS CORPORATE GOALS; FINANCIAL PERFORMANCE MEASURES AND QUALITY MEASURES (SUCH AS PATIENT SATISFACTION AND QUALITY OF CARE).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II</FormAndLineReferenceDesc>
        <ExplanationTxt>LHS AND ITS RELATED ORGANIZATIONS DO NOT COMPENSATE ANY TRUSTEE OR OFFICER IN THEIR CAPACITY AS TRUSTEE OR OFFICER. ALL COMPENSATION PAID IS FOR WORK PERFORMED IN THEIR CAPACITY OTHER THAN TRUSTEE OR OFFICER, WHICH IS LISTED ON FORM 990, PART VII, DIRECTLY FOLLOWING THE TITLE OF TRUSTEE AND/OR OFFICER.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="IRS990ScheduleM">
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      <ArtHistoricalTreasuresGrp />
      <ArtFractionalInterestGrp />
      <BooksAndPublicationsGrp />
      <ClothingAndHouseholdGoodsGrp />
      <CarsAndOtherVehiclesGrp />
      <BoatsAndPlanesGrp />
      <IntellectualPropertyGrp />
      <SecuritiesPubliclyTradedGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>3</ContributionCnt>
        <NoncashContributionsRptF990Amt>8814</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>stock market</MethodOfDeterminingRevenuesTxt>
      </SecuritiesPubliclyTradedGrp>
      <SecuritiesCloselyHeldStockGrp />
      <SecurPrtnrshpTrustIntrstsGrp />
      <SecuritiesMiscellaneousGrp />
      <QualifiedContribHistStructGrp />
      <QualifiedContribOtherGrp />
      <RealEstateResidentialGrp />
      <RealEstateCommercialGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>137500</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>Appraisal</MethodOfDeterminingRevenuesTxt>
      </RealEstateCommercialGrp>
      <RealEstateOtherGrp />
      <CollectiblesGrp />
      <FoodInventoryGrp />
      <DrugsAndMedicalSuppliesGrp />
      <TaxidermyGrp />
      <HistoricalArtifactsGrp />
      <ScientificSpecimensGrp />
      <ArchaeologicalArtifactsGrp />
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>Event Supplies</Desc>
        <ContributionCnt>18</ContributionCnt>
        <NoncashContributionsRptF990Amt>800</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>Estimate</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B</FormAndLineReferenceDesc>
        <ExplanationTxt>WINCHESTER HOSPITAL FOUNDATION DOES NOT HAVE ANY COMMITTEES WITH AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11</FormAndLineReferenceDesc>
        <ExplanationTxt>MANAGEMENT PREPARED THE IRS FORM 990 ALONG WITH INDEPENDENT TAX CONSULTANTS WHO SIGN THE RETURN AS A PAID PREPARER. EXECUTIVE MANAGEMENT REVIEWED AND PRESENTED A DRAFT OF THE IRS FORM 990 TO THE AUDIT AND COMPLIANCE COMMITTEE OF THE LAHEY HEALTH SYSTEM, INC. BOARD OF TRUSTEES. PRIOR TO THE FILING DATE, A DRAFT OF THE IRS FORM 990 AND THE FINAL IRS FORM 990 WERE BOTH PROVIDED TO THE ENTIRE BOARD OF TRUSTEES BEFORE THE FILING DATE VIA A SECURED WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>Semi-annual audit and compliance committee reviews compiled conflict of interest report from legal services questionnaires sent to all affilates, DIRECTORS, AND TRUSTEES. The chair of the audit/compliance committee, in cooperation with the compliance officer, shall conduct the initial review of any potential conflicts of interest identified in the disclosures and shall adopt a finding that the activity raising the potential conflict of interest: should be permitted under the polilcy; should be permitted with modification or oversight; if undertaken, will require the director, or compliance officer to abstain from participating in governance/management activities related to the activity; or should not be undertaken. Upon FINAL DISPOSITION OF THE POTENTIAL CONFLICT, THE RESULTS OF THE REVIEW SHALL BE REPORTED TO THE AFFECTED LEADER. THE AUDIT/COMPLIANCE COMMITTEE SHALL PROVIDE AN ANNUAL REPORT OF ITS REVIEW TO THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S OFFICERS' SALARIES AND BENEFITS ARE PAID AND DETERMINED UNDER THE COMPENSATION POLICIES OF WINCHESTER HOSPITAL, THE ORGANIZATION'S AFFILIATE. THIS INCLUDES USE OF A COMPENSATION COMMITTEE, INDEPENDENT COMPENSATION CONSULTANTS, THE FORM 990 OF OTHER ORGANIZATIONS, COMPENSATION STUDY, AND APPROVAL BY THE BOARD OR COMPENSATION COMMITTEE. THE EXECUTIVE COMPENSATION COMMITTEE THAT IS INDEPENDENT OF MANAGEMENT AND FREE OF ANY CONFLICTS OF INTEREST THAT WOULD INTERFERE WITH THE EXERCISE OF THEIR INDEPENDENT JUDGMENT REVIEWS COMPARABILITY DATA PROVIDED BY AN INDEPENDENT EXTERNAL CONSULTANT, LAL ASSOCIATES, INC., TO ESTABLISH COMPENSATION. ALL COMPENSATION DECISIONS ARE DOCUMENTED CONCURRENTLY UPON MAKING THE DECISION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST. THE FORM 990 AND AUDITED FINANCIAL STATEMENTS ARE AVAILABLE ON THE MASSACHUSETTS ATTORNEY GENERAL'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9, CHANGES IN NET ASSETS</FormAndLineReferenceDesc>
        <ExplanationTxt>TRANSFERS FROM WINCHESTER HOSPITAL 3,360,000 TRANSFERS TO AFFLIATES (1,118,667) ADJUSTMENT TOTAL TO FORM 990, PART XI, LINE 9 2,241,333</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION B, LINE 1 &amp; 2</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SHARED SERVICES, INC. ("LHSS") COMPENSATES (PROCESSES PAYMENT) ALL INDEPENDENT CONTRACTORS (VENDORS) ON BEHALF OF THE LAHEY HEALTH SYSTEM, INC. FAMILY OF ORGANIZATIONS. UNDER ITS TAX ID NUMBER, LHSS ISSUES FORM 1099 TO THE INDEPENDENT CONTRACTORS. IN ADDITION, IT SUBMITS THE SAME INFORMATION TO THE INTERNAL REVENUE SERVICE. THE LAHEY HEALTH SYSTEM, INC. FAMILY OF ORGANIZATIONS REIMBURSES LHSS FOR ALL VENDOR PAYMENTS MADE EITHER DIRECTLY OR INDIRECTLY ON THEIR BEHALF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART I:</FormAndLineReferenceDesc>
        <ExplanationTxt>LAHEY HEALTH SYSTEM AND BETH ISRAEL DEACONESS MEDICAL CENTER, MOUNT AUBURN HOSPITAL, NEW ENGLAND BAPTIST HOSPITAL, INC., SEACOAST REGIONAL HEALTH SYSTEMS, INC. (PARENT CORPORATION TO ANNA JAQUES HOSPITAL) AND BETH ISRAEL DEACONESS PHYSICIAN ORGANIZATION, LLC OFFICIALLY MERGED ON MARCH 1, 2019 AFTER RECEIVING APPROVAL FROM THE MASSACHUSETTS ATTORNEY GENERAL AND THE FEDERAL TRADE COMMISSION. EFFECTIVE MARCH 1, 2019 BETH ISRAEL LAHEY HEALTH, INC. BECAME THE SOLE MEMBER OF WINCHESTER HOSPITAL FOUNDATION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>lahey clinic hospital inc</BusinessNameLine1Txt>
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          <AddressLine1Txt>41 mall road</AddressLine1Txt>
          <CityNm>burlington</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>042704686</EIN>
        <PrimaryActivitiesTxt>healthcare</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>lcf</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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          <BusinessNameLine1Txt>lahey clinic inc</BusinessNameLine1Txt>
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          <AddressLine1Txt>41 mall road</AddressLine1Txt>
          <CityNm>burlington</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>042704683</EIN>
        <PrimaryActivitiesTxt>healthcare</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>LCF</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>lahey health shared services inc</BusinessNameLine1Txt>
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          <AddressLine1Txt>41 mall road</AddressLine1Txt>
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          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
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          <BusinessNameLine1Txt>northeast health system inc</BusinessNameLine1Txt>
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          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
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          <ZIPCd>01923</ZIPCd>
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        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
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          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>HEALTH AND EDUCATION HOUSING SERVICES</BusinessNameLine1Txt>
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          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
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          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01923</ZIPCd>
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        <PrimaryActivitiesTxt>HUD HOUSING</PrimaryActivitiesTxt>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>NORTHEAST HOSPITAL CORPORATION</BusinessNameLine1Txt>
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          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST MEDICAL PRACTICE</BusinessNameLine1Txt>
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          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
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          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>043201853</EIN>
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        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
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          <BusinessNameLine1Txt>NHC</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>SEACOAST NURSING &amp; REHABILITATION CENTER</BusinessNameLine1Txt>
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          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01930</ZIPCd>
        </USAddress>
        <EIN>041305001</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST PROFESSIONAL REGISTRY OF NURSE</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>800 CUMMINGS CENTER</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>201287349</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NSH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NORTHEAST SENIOR HEALTH CORPORATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>85 HERRICK STREET</AddressLine1Txt>
          <CityNm>BEVERLY</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>042731137</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>CAB HEALTH &amp; RECOVERY SERVICES INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>199 ROSEWOOD DRIVE SUITE 250</AddressLine1Txt>
          <CityNm>DANVERS</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01923</ZIPCd>
        </USAddress>
        <EIN>042400270</EIN>
        <PrimaryActivitiesTxt>SUBSTANCE ABU</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NBH</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY HEALTH SYSTEM INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>611665701</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12C</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER HOSPITAL</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>042104434</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER HEALTHCARE MANAGEMENT</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>222701817</EIN>
        <PrimaryActivitiesTxt>MANAGEMENT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>WINCHESTER COMMUNITY ACCOUNTABLE CARE</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>223137856</EIN>
        <PrimaryActivitiesTxt>ACO</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY CLINIC FOUNDATION</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>042323457</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>ADDISON GILBERT SOCIETY INC</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>464371382</EIN>
        <PrimaryActivitiesTxt>SUPPORT</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>12A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LAHEY PHYSICIAN COMMUNITY ORGANIZATION I</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>41 MALL ROAD</AddressLine1Txt>
          <CityNm>BURLINGTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <EIN>472248298</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>lahey clinic insurance co ltd</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <ForeignAddress>
          <AddressLine1Txt>po box hm 2450</AddressLine1Txt>
          <CityNm>HAMILTON</CityNm>
          <ProvinceOrStateNm>BERMUDA</ProvinceOrStateNm>
          <CountryCd>BD</CountryCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>INSURANCE</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>BD</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>LHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>FOREIGN CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>perpetual trusts (8)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 mall road</AddressLine1Txt>
          <CityNm>burlington</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>support</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>see part VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>Trust</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>1212992</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>21349557</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>remainder trusts (16)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 mall road</AddressLine1Txt>
          <CityNm>burlington</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>support</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>see part VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>Trust</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>341910</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>6715118</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>pooled income funds (3)</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 mall road</AddressLine1Txt>
          <CityNm>burlington</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01805</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>support</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>see part VII</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>Trust</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>12695</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>900091</ShareOfEOYAssetsAmt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>northeast proprietary corporation</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>85 herrick street</AddressLine1Txt>
          <CityNm>beverly</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01915</ZIPCd>
        </USAddress>
        <EIN>042855191</EIN>
        <PrimaryActivitiesTxt>MEDICAL SERVI</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NHS</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WINCHESTER PHYSICIAN HOSPITAL ORG</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>472646454</EIN>
        <PrimaryActivitiesTxt>PHYSICIAN SER</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WINCHESTER HEALTHCARE ENTERPRISES INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>042932059</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE VE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WINCHESTER PHYSICIAN ASSOCIATES INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>41 HIGHLAND AVENUE</AddressLine1Txt>
          <CityNm>WINCHESTER</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>01890</ZIPCd>
        </USAddress>
        <EIN>043262963</EIN>
        <PrimaryActivitiesTxt>PHYSICIAN PRA</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>WHM</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C CORP</EntityTypeTxt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>true</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>true</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>true</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>true</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Winchester Hospital Inc</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>PIC C</TransactionTypeTxt>
        <InvolvedAmt>3360000</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Mngt's decision</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART IV</FormAndLineReferenceDesc>
        <ExplanationTxt>Northeast Hospital Corporation, Lahey Clinic Foundation, Inc., and Winchester Hospital, respectively, have four, three, and one perpetual trusts. The perpetual trusts are domiciled in DELAWARE, Massachusetts, PENNSYLVANIA, AND FLORIDA. Lahey Clinic Foundation, Inc. has sixteen remainder trusts. The remainder trusts are domiciled in Massachusetts, New Hampshire, DELAWARE, AND NEW YORK. Lahey Clinic Foundation, Inc. has three pooled income funds, domiciled IN MASSACHUSETTS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART V</FormAndLineReferenceDesc>
        <ExplanationTxt>The Lahey Health Shared Services, Inc. Philanthropy Department conducts fundraising and solicitation efforts on behalf of all entities within the Lahey Health System, Inc. family of organizations. Lahey Health System, Inc. and its related organizations, Lahey Clinic Foundation, Inc. and its related organizations, Winchester Healthcare Management, Inc. and its related organizations, Northeast Behavioral Health Corporation and its related organizations, Northeast Senior Health Corporation and its related organization, Northeast Health System, Inc. and its related organization, and Northeast Hospital Corporation and its related organization, provide various corporate and OTHER SERVICES TO EACH OTHER. THE ORGANIZATIONS REIMBURSE EACH OTHER FOR EXPENSES INCURRED SUCH AS EMPLOYEE SALARIES AND BENEFITS, MATERIALS, SUPPLIES, UTILITIES, ETC. CASH IS TRANSFERRED BETWEEN THE ORGANIZATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>