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      <ProgramServiceRevenueGrp>
        <Desc>Patient Service Revenu</Desc>
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        <RelatedOrExemptFuncIncomeAmt>14337223</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Provision for Bad Debt</Desc>
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        <RelatedOrExemptFuncIncomeAmt>-135913</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>Other Contractual Allo</Desc>
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        <RelatedOrExemptFuncIncomeAmt>-3440501</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>Medicare &amp; Medicaid Al</Desc>
        <BusinessCd>621400</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>-5355885</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>23628</ExclusionAmt>
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        <ExclusionAmt>23628</ExclusionAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ManagementAndGeneralAmt>213484</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>283782</ProgramServicesAmt>
        <ManagementAndGeneralAmt>56672</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>45161</ProgramServicesAmt>
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      <AdvertisingGrp>
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        <ProgramServicesAmt>2066</ProgramServicesAmt>
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        <ProgramServicesAmt>117185</ProgramServicesAmt>
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        <ManagementAndGeneralAmt>13795</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>701538</ProgramServicesAmt>
        <ManagementAndGeneralAmt>104827</ManagementAndGeneralAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>3818317</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1055017</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <CashNonInterestBearingGrp>
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        <EOYAmt>400</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
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        <EOYAmt>1806529</EOYAmt>
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      <AccountsReceivableGrp>
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        <EOYAmt>538085</EOYAmt>
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      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>273916</BOYAmt>
        <EOYAmt>498880</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>17864835</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>14825933</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>3038902</EOYAmt>
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      <TotalAssetsGrp>
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        <EOYAmt>5882796</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>292598</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>291576</BOYAmt>
        <EOYAmt>292598</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <CapStkTrPrinCurrentFundsGrp>
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        <EOYAmt>300</EOYAmt>
      </CapStkTrPrinCurrentFundsGrp>
      <PdInCapSrplsLandBldgEqpFundGrp>
        <BOYAmt>494700</BOYAmt>
        <EOYAmt>494700</EOYAmt>
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      <RtnEarnEndowmentIncmOthFndsGrp>
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        <EOYAmt>5095198</EOYAmt>
      </RtnEarnEndowmentIncmOthFndsGrp>
      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>5590198</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>5882796</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>555218</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
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    <IRS990ScheduleA documentId="RetDoc1039100001">
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    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <BookValueAmt>288798</BookValueAmt>
      </LandGrp>
      <BuildingsGrp>
        <OtherCostOrOtherBasisAmt>6368069</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>6245633</DepreciationAmt>
        <BookValueAmt>122436</BookValueAmt>
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      <EquipmentGrp>
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        <DepreciationAmt>8514332</DepreciationAmt>
        <BookValueAmt>2363150</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
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        <DepreciationAmt>65968</DepreciationAmt>
        <BookValueAmt>264518</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>3038902</TotalBookValueLandBuildingsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>5428552</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5428552</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5428552</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>4873334</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>4873334</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>4873334</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
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      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1787</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>288234</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Andrew DesRosiers</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>178629</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
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        <PersonNm>Charles Mangano</PersonNm>
        <TitleTxt>Chief RT</TitleTxt>
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        <TotalCompensationFilingOrgAmt>180924</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Scott Cail</PersonNm>
        <TitleTxt>Dosimetrist</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>4754</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>21426</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>179799</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The NRCC completed a capital project with the manufacturer Elekta to replace one LINAC. The new LINAC went live for treating patients on April 1, 2024. In October 2024, a capital project initiated with Denron Hall to upgrade the HVAC system. Upgrade pneumatic controls to a VRF system, replaced one air handler unit. A second air handler unit is in process. The two AHUs will go live in 2025.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center's stockholders include three not-for-profit acute care hospitals: Mary Hitchcock Memorial Hospital, Southern New Hampshire Medical Center, and St. Joseph Hospital. Each stockholder made equal capital contributions to the Center and was issued 100 shares of the Center's common stock at a par value of $1 per share.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center's stockholders each have a representative on the Board of Directors.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Center's Board of Directors has a representative from each of its shareholders who are each entitled to a vote. No single shareholder has a controlling vote.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's 990 is provided to the full Board of Directors for review.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Members of the Governing Board and key employees are required to fill out a Declaration of Duality and Conflict of Interest statement each year. This statement is reviewed for potential conflicts of interest. If a Board member has identified a conflict of interest, he/she will recuse themselves from the room while the discussion takes place and until the vote is taken.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The members of the governing body use external human resource experts to review the compensation for the Executive Director.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The governing documents, conflict of interest policy and financial statements are available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Schedule A, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organization's tax exemption is based upon the classification of a hospital or cooperative hospital service organization described in section 170(b)(1)(A)(iii). Since the Organization is not licensed by the State of New Hampshire as a hospital, Schedule H is not required.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>