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        <PersonNm>Erica S Zado</PersonNm>
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        <PersonNm>Jeanne E Poole</PersonNm>
        <TitleTxt>Member</TitleTxt>
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        <PersonNm>Jill Boone Schaeffer</PersonNm>
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        <PersonNm>John K Triedman</PersonNm>
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        <PersonNm>Jonathan M Kalman</PersonNm>
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        <PersonNm>Suneet Mittal</PersonNm>
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        <PersonNm>Win-Kuang Shen</PersonNm>
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        <PersonNm>David S Frankel</PersonNm>
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        <PersonNm>Dhanunjaya R Lakkireddy</PersonNm>
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        <PersonNm>Nassir F Marrouche</PersonNm>
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        <PersonNm>Emily P Zeitler MD MHS</PersonNm>
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        <PersonNm>Jagmeet P Singh MD PhD</PersonNm>
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        <PersonNm>Brynn E Dechert-Crooks APN</PersonNm>
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        <PersonNm>Jonathan P Piccini Sr MD</PersonNm>
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        <PersonNm>Sunny S Po MD PhD</PersonNm>
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        <PersonNm>Patricia A Blake</PersonNm>
        <TitleTxt>Chief Executive Officer</TitleTxt>
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        <PersonNm>Eric Booth</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Kenneth J Demith</PersonNm>
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        <PersonNm>Timothy Gregory</PersonNm>
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        <PersonNm>Simintha Esson</PersonNm>
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        <PersonNm>Anne Marie Smith</PersonNm>
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        <PersonNm>David S Raimist</PersonNm>
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        <PersonNm>Kristopher J Murphy</PersonNm>
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        <ProgramServicesAmt>261189</ProgramServicesAmt>
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        <ProgramServicesAmt>13500</ProgramServicesAmt>
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        <ProgramServicesAmt>10500</ProgramServicesAmt>
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        <ProgramServicesAmt>746213</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>1285</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>70347</ProgramServicesAmt>
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      <OtherExpensesGrp>
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        <PersonNm>Kenneth J Demith</PersonNm>
        <TitleTxt>Chief Experience Officer</TitleTxt>
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        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>62309</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>353</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>83</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>351560</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>1994</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Timothy Gregory</PersonNm>
        <TitleTxt>Chief Learning Officer</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>29785</BonusFilingOrganizationAmount>
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        <DeferredCompensationFlngOrgAmt>50901</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>30925</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>328733</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Eric Booth</PersonNm>
        <TitleTxt>Chief Financial Officer</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>27944</BonusFilingOrganizationAmount>
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        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>David S Raimist</PersonNm>
        <TitleTxt>Associate VP, Member Eng &amp; Data</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>6964</CompensationBasedOnRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>1100</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>266251</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>9620</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Anne Marie Smith</PersonNm>
        <TitleTxt>Vice President, Practice Improvement</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>5387</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>15438</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>238855</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Germaine A Lutman Schaefer</PersonNm>
        <TitleTxt>Associate VP, Meeting Operations</TitleTxt>
        <BaseCompensationFilingOrgAmt>186071</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>14936</BonusFilingOrganizationAmount>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>232858</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Pamela E Magnani</PersonNm>
        <TitleTxt>Associate VP, Education</TitleTxt>
        <BaseCompensationFilingOrgAmt>189014</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>16960</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>25293</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>232112</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Simintha Esson</PersonNm>
        <TitleTxt>Chief Strategy Officer start 4/19/21</TitleTxt>
        <BaseCompensationFilingOrgAmt>163140</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>25000</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12400</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>16066</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>216606</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kristopher J Murphy</PersonNm>
        <TitleTxt>Associate VP, Mktg &amp; Communications</TitleTxt>
        <BaseCompensationFilingOrgAmt>157374</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>121</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>12350</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>10</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>25941</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>20</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>12410</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>10</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>208075</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>161</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4b</FormAndLineReferenceDesc>
        <ExplanationTxt>Line 4b: During calendar year 2021, the Society contributed $ 61,790 to Patricia Blake's nonqualified section 457(f) plan.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society has members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society has a call for nominations. Nomination subcommittee meets to review the nominations and develops a slate of nominees for the Board of Trustees. The Board of Trustees reviews and approves the slate and then puts the slate forth to voting membership for approval.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Articles of Organization may be amended only by the affirmative vote of at least two-thirds (2/3) of the Members and Fellows entitled to vote.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society's Board-approved financial policies state that the Audit Committee shall review and approve the annual Form 990 tax returns. The Audit Committee, who has delegated authority from the Board of Directors, reviews the draft Form 990 tax return in detail with the assistance from the Society's financial staff and audit firm and approves the form prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Every committee chair reviews all of their committee's disclosures forms. Before the start of every committee meeting, a statement regarding disclosures and conflict of interest is read by the chair. The Society's Ethics Oversight Committee ensures compliance with the Society's Code of Ethics and Professional Standards.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society's Compensation Subcommittee assesses the Chief Executive Officer's performance and recommends a compensation plan to the Executive Committee and Board of Trustees for approval. The Society retains an independent compensation consultant to perform a compensation analysis for use by the Compensation Subcommittee. Meeting minutes and compensation analyses are retained by the Society. Compensation of key (and non-key) Society employees are reviewed as part of the overall budget approval process by the Finance Committee and Board of Trustees. The salary of each staff position is reviewed and determined using internally obtained survey data.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society's governing documents and conflict of interest policy are publicly available on the Society's website. Audited financial statements are available upon request to individuals and organizations based on business need.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Contracted Services - Decorator: Program service expenses 604,441. Management and general expenses 0. Fundraising expenses 0. Total expenses 604,441. Consulting Services: Program service expenses 453,514. Management and general expenses 111,391. Fundraising expenses 11,703. Total expenses 576,608. Contracted Services - Content Development: Program service expenses 341,711. Management and general expenses 0. Fundraising expenses 27,855. Total expenses 369,566. Contracted Services - Security: Program service expenses 99,679. Management and general expenses 8,036. Fundraising expenses 0. Total expenses 107,715. Contracted Services - Electrical: Program service expenses 93,510. Management and general expenses 0. Fundraising expenses 0. Total expenses 93,510. Honoraria Fees: Program service expenses 90,500. Management and general expenses 0. Fundraising expenses 0. Total expenses 90,500. Contracted Services - Other Labor: Program service expenses 76,324. Management and general expenses 4,638. Fundraising expenses 1,856. Total expenses 82,818. Contracted Services - Registration/Housing: Program service expenses 72,405. Management and general expenses 0. Fundraising expenses 0. Total expenses 72,405. Contracted Services - Payroll Processing: Program service expenses 0. Management and general expenses 40,353. Fundraising expenses 0. Total expenses 40,353. Contracted Services - Photographer: Program service expenses 16,250. Management and general expenses 0. Fundraising expenses 0. Total expenses 16,250. Contracted Services - Graphics Design: Program service expenses 5,555. Management and general expenses 0. Fundraising expenses 0. Total expenses 5,555. Copyright, Patent &amp; Trademark Fees: Program service expenses 2,143. Management and general expenses 0. Fundraising expenses 0. Total expenses 2,143. Contracted Services - Order Fulfillment: Program service expenses 0. Management and general expenses 0. Fundraising expenses 1,800. Total expenses 1,800.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Forgiveness of intercompany debt 99,955.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Society's Audit Committee assumes responsibility for oversight of the audit of its financial statements. The Society's Audit Committee also assumes responsibility for the selection of an independent accountant. The process is consistent with previous years.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Heart Rhythm Foundation</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1325 G Street NW Suite 400</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>200053121</ZIPCd>
        </USAddress>
        <EIN>200380726</EIN>
        <PrimaryActivitiesTxt>See Schedule R, Part VII</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 7</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Heart Rhythm Society</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>International Board of Heart Rhythm Examiners Inc</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>1325 G Street NW Suite 400</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>200053121</ZIPCd>
        </USAddress>
        <EIN>042917754</EIN>
        <PrimaryActivitiesTxt>See Schedule R, Part VII</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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          <BusinessNameLine1Txt>HRS Consulting Services Inc</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>1325 G Street NW Suite 400</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>200053121</ZIPCd>
        </USAddress>
        <EIN>454366704</EIN>
        <PrimaryActivitiesTxt>See Schedule R, Part VII</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>DE</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Heart Rhythm Society</BusinessNameLine1Txt>
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        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>0</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>1</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>IBHRE</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>N</TransactionTypeTxt>
        <InvolvedAmt>141208</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Allocated costs</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>IBHRE</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>O</TransactionTypeTxt>
        <InvolvedAmt>481173</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Allocated payroll</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>IBHRE</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>Q</TransactionTypeTxt>
        <InvolvedAmt>533099</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Cash reimbursements</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Heart Rhythm Foundation</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>S</TransactionTypeTxt>
        <InvolvedAmt>99995</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Intercompany Forgiveness</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule R, Part II, Column B</FormAndLineReferenceDesc>
        <ExplanationTxt>Heart Rhythm Foundation Primary Activity: Dormant foundation whose mission is to enhance the prevention and treatment of heart rhythm disorders by supporting the research, education and advocacy efforts of the Heart Rhythm Society. International Board of Heart Rhythm Examiners, Inc. Primary Activity: To design and administer examinations to measure skills in cardiac pacing and electrophysiology.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule R, Part IV, Column B</FormAndLineReferenceDesc>
        <ExplanationTxt>HRS Consulting Services, Inc. Primary Activity: Dormant corporation whose purpose is to provide EP-specific consulting services to physician practices and hospitals.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
