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        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>George Ted Hissong</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Thomas J Ryan Jr MD FACC</PersonNm>
        <TitleTxt>Physician, MH</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>24.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>288804</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>90034</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Sandy Morrell Rooney</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Stuart H Watson</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Linda Terry</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Peter Wood</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Matthew C Chin</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Quincy Hentzel</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Amanda Rand</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Andrew Mueller MD</PersonNm>
        <TitleTxt>Chief Executive Officer, MH</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
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        <ReportableCompFromRltdOrgAmt>1792868</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>52043</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Albert G Swallow III</PersonNm>
        <TitleTxt>CFO, MH; Board Treasurer</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
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        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>1180593</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>119520</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Beth Kelsch</PersonNm>
        <TitleTxt>General Counsel, MH; Board Secretary</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>50.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
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        <ReportableCompFromRltdOrgAmt>639734</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>93604</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Michelle Bush</PersonNm>
        <TitleTxt>Corp Counsel, MH; Bd Asst Secretary</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>43148</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Richard W Petersen</PersonNm>
        <TitleTxt>Former President, MH</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>50.00</AverageHoursPerWeekRltdOrgRt>
        <FormerOfcrDirectorTrusteeInd>X</FormerOfcrDirectorTrusteeInd>
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        <ReportableCompFromRltdOrgAmt>742958</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>7181</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Robert Frank</PersonNm>
        <TitleTxt>Former General Counsel, MH</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
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        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>234168</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>66500</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Joan Boomsma MD</PersonNm>
        <TitleTxt>Former Chief Medical Officer</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Mark Harris</PersonNm>
        <TitleTxt>Frmr Officer/Chief Planning Officer</TitleTxt>
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      <FormerOfcrEmployeesListedInd>1</FormerOfcrEmployeesListedInd>
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      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>SeHR Program Revenue</Desc>
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        <RelatedOrExemptFuncIncomeAmt>24713375</RelatedOrExemptFuncIncomeAmt>
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      <TotalProgramServiceRevenueAmt>24713375</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
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      <NetGainOrLossInvestmentsGrp>
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        <Desc>Miscellaneous Revenue</Desc>
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        <ProgramServicesAmt>1629151</ProgramServicesAmt>
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        <ProgramServicesAmt>11686474</ProgramServicesAmt>
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        <ProgramServicesAmt>13315625</ProgramServicesAmt>
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      <TotalAssetsGrp>
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        <EOYAmt>3457852</EOYAmt>
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      <OtherLiabilitiesGrp>
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      <TotalLiabilitiesGrp>
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      <DonorRestrictionNetAssetsGrp>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>-51207059</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>292459755</EOYAmt>
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      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>12778773</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>570357</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>-8008886</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
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      <FSAuditedBasisGrp>
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      <SupportingOrgType3FuncIntInd>X</SupportingOrgType3FuncIntInd>
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      <SupportedOrgInformationGrp>
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        <OtherSupportAmt>0</OtherSupportAmt>
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      <SupportedOrgInformationGrp>
        <SupportedOrganizationName>
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        <OtherSupportAmt>0</OtherSupportAmt>
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      <SupportedOrgInformationGrp>
        <SupportedOrganizationName>
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        <ExerciseDirectionPoliciesInd>1</ExerciseDirectionPoliciesInd>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part IV, Section E, Line 3a</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization as sole member of its supported organizations elects the trustees of each of its supported organizations.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Part IV, Section E, Line 3b</FormAndLineReferenceDesc>
        <ExplanationTxt>Decisions of the governing body such as budgets, business and marketing strategic plans, significant financial commmitments, amendments to the articles of incorporation, and election of the President/CEO among other decisions, are subject to approval by MaineHealth Services.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <DepreciationAmt>314884694</DepreciationAmt>
        <BookValueAmt>18722406</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>18722406</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>Other assets</Desc>
        <BookValueAmt>6548087</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>457b plan asset</Desc>
        <BookValueAmt>145999199</BookValueAmt>
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      <OtherAssetsOrgGrp>
        <Desc>Other investments</Desc>
        <BookValueAmt>1566014</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>154113300</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Self insurance reserves</Desc>
        <Amt>111802128</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>457b plan liability</Desc>
        <Amt>145999199</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Due to affiliates</Desc>
        <Amt>20191270</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Other liabilities</Desc>
        <Amt>2803769</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>280796366</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>FIN 48 Footnote The Internal Revenue Service has previously determined that the System and its subsidiaries (except Maine Medical Partners (MMP) (a subsidiary of MaineHealth) are organizations as described in Section 501(c)(3) of the Internal Revenue Code (IRC) and are exempt from federal income taxes on related income pursuant to Section 501(a) of the IRC. MMP had significant net operating loss carryovers as of September 30, 2023 and 2022. A valuation allowance has been provided for the entire deferred tax benefit for the net operating losses, due to uncertainty of realization. MMP did not have material taxable income in 2023 and 2022. Accordingly, a provision for income taxes has not been made in the accompanying consolidated financial statements. The System recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount of benefit that is greater than fifty percent likely to be realized upon settlement. Changes in measurement are reflected in the period in which the change in judgment occurs. The System did not recognize the effect of any income tax positions in either 2023 or 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 4a</FormAndLineReferenceDesc>
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        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0.00000</PrivateBusUseByOthersPct>
        <PrivateBusConcerningUBIPct>0.00000</PrivateBusConcerningUBIPct>
        <TotalPrivateBusinessUsePct>0.00000</TotalPrivateBusinessUsePct>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
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        <ProcsNonqualifiedBondRemdtdInd>1</ProcsNonqualifiedBondRemdtdInd>
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      <TaxExemptBondsPrivateBusUseGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <OwningBondFinancedPropertyInd>0</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>0</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>0</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>0</AnyResearchAgreementsInd>
        <PrivateBusUseByOthersPct>0.00000</PrivateBusUseByOthersPct>
        <PrivateBusConcerningUBIPct>0.00000</PrivateBusConcerningUBIPct>
        <TotalPrivateBusinessUsePct>0.00000</TotalPrivateBusinessUsePct>
        <BondIssMeetPrvtSecPymtTestInd>0</BondIssMeetPrvtSecPymtTestInd>
        <ChangeInUseBondFinancedPropInd>0</ChangeInUseBondFinancedPropInd>
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      </TaxExemptBondsPrivateBusUseGrp>
      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>0</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>1</NoRebateDueInd>
        <VariableRateIssueInd>1</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>1</WrittenProcToMonitorReqsInd>
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      <TaxExemptBondsArbitrageGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <Form8038TFiledInd>0</Form8038TFiledInd>
        <RebateNotDueYetInd>0</RebateNotDueYetInd>
        <ExceptionToRebateInd>0</ExceptionToRebateInd>
        <NoRebateDueInd>1</NoRebateDueInd>
        <VariableRateIssueInd>1</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>0</HedgeIdentifiedInBksAndRecInd>
        <GrossProceedsInvestedInGICInd>0</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>0</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>1</WrittenProcToMonitorReqsInd>
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      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <ProceduresCorrectiveActionGrp>
        <BondReferenceCd>B</BondReferenceCd>
        <ProceduresCorrectiveActionInd>1</ProceduresCorrectiveActionInd>
      </ProceduresCorrectiveActionGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Date Rebate Computation Performed</FormAndLineReferenceDesc>
        <ExplanationTxt>Issuer Name: Finance Authority of Maine Date the Rebate Computation was Performed: 09/28/2016 Issuer Name: Finance Authority of Maine Date the Rebate Computation was Performed: 08/30/2019</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleK>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>MaineHealth (EIN 01-0238552), acting on behalf of the MaineHealth System filed 1,684 Form 1099s for the calendar year 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V, Line 2a</FormAndLineReferenceDesc>
        <ExplanationTxt>MaineHealth (EIN 01-0238552), acting on behalf of the MaineHealth System filed Form W-3, reporting 26,427 employees for the calendar year 2022.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization has members who serve on a Board of Corporators.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization's Board of Corporators has the ability to elect trustees at an annual or a special meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>There are decisions by the governing body that require corporator approval. They include: 1. The amendment of the Articles of Incorporation of MaineHealth Services or MaineHealth resulting in major, fundamental changes in purposes or governance; 2. merger or consolidation of MaineHealth Services or MaineHealth with an entity that is not controlled by, or an affiliate of, MaineHealth Services as of the effective date; 3. sale or other disposition of all or substantially all the assets of MaineHealth Services or MaineHealth; or 4. dissolution of MaineHealth Services or MaineHealth.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The MaineHealth CFO reviewed the Form 990 in detail. The Form 990 was also made available to the full Board of Trustees prior to filing the return.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>MaineHealth's Audit &amp; Compliance Services sends Conflict of Interest (COI) disclosure form requests to over 3,000 Care Team Members (including all Board Members, Officers, and other Senior Leaders) each year. Audit &amp; Compliance Services collects the disclosure forms and reviews each submission for possible reported conflicts to determine if a management mitigation plan is required. The results of the annual COI process are reported to the MaineHealth Executive Compliance Committee, the Audit Committee, Local Health System Presidents, and the Board of Trustees Chairpersons.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>MaineHealth uses an outside firm, Sullivan Cotter, to perform an independent benchmark analysis for the CEO and other senior executive leaders. The firm meets with the Executive Committee of the Board of Directors to review the executive benchmark report. The Executive Committee then deliberates on MaineHealth's written salary and incentive plan philosophy before making a final decision. All meeting decisions are captured in minutes with appropriate approvals at all levels.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Documents that are required to be open for public inspection are made available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Equity Transfers to Affiliate -8,008,886.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI - Additional Information</FormAndLineReferenceDesc>
        <ExplanationTxt>MaineHealth has established an information systems project, known as the Shared electronic Health Record (SeHR), to implement a system-wide integrated electronic health record system and financial system. In 2014 and 2017, funding for a portion of the SeHR project was acquired by MaineHealth Services through the issuance of tax exempt revenue bonds through the Finance Authority of Maine in the amount of $94,800,000 and $55,500,000, respectively. Section 168 of the Internal Revenue Code requires that projects funded by tax-exempt sources of financing be depreciated using the alternative depreciation system (ADS). The ADS system requires that computer technology systems be depreciated over a period of 60 months. For Generally Accepted Accounting Principles (GAAP), MaineHealth is using between 60 and 144 month useful lives for the SeHR system, as management believes that these periods better reflect the useful life given the amount invested and the complexity of implementation. The fiscal year 2023 book to tax depreciation adjustment of $15,333,154 was recorded as a decrease to current year tax depreciation expense. Had the current year book to tax difference not been recorded, MaineHealth Services would have reported a net loss for FY 2023 of $2,554,381.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>Community Health and Nursing Services</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>60 Baribeau Drive</AddressLine1Txt>
          <CityNm>Brunswick</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
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      <IdRelatedTaxExemptOrgGrp>
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        </DisregardedEntityName>
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          <CityNm>Farmington</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>LincolnHealth Cove's Edge</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04543</ZIPCd>
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        <DisregardedEntityName>
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          <CityNm>Damariscotta</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04543</ZIPCd>
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        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
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        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Maine Medical Center Realty Corp</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>22 Bramhall Street</AddressLine1Txt>
          <CityNm>Portland</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04102</ZIPCd>
        </USAddress>
        <EIN>010434215</EIN>
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        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 12a, I</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
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        <USAddress>
          <AddressLine1Txt>22 Bramhall Street</AddressLine1Txt>
          <CityNm>Portland</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04102</ZIPCd>
        </USAddress>
        <EIN>010238552</EIN>
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        <PublicCharityStatusTxt>Line 3</PublicCharityStatusTxt>
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          <BusinessNameLine1Txt>MaineHealth Services</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>MaineHealth Care at Home</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>15 Industrial Park</AddressLine1Txt>
          <CityNm>Saco</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04072</ZIPCd>
        </USAddress>
        <EIN>222571902</EIN>
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        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Memorial Elder Health Services</BusinessNameLine1Txt>
        </DisregardedEntityName>
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          <AddressLine1Txt>3073 White Mountain Highway</AddressLine1Txt>
          <CityNm>North Conway</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>03860</ZIPCd>
        </USAddress>
        <EIN>813653215</EIN>
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        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
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        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>3073 White Mountain Highway</AddressLine1Txt>
          <CityNm>North Conway</CityNm>
          <StateAbbreviationCd>NH</StateAbbreviationCd>
          <ZIPCd>03860</ZIPCd>
        </USAddress>
        <EIN>462137291</EIN>
        <PrimaryActivitiesTxt>Fundraising</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NH</LegalDomicileStateCd>
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        <PublicCharityStatusTxt>Line 12a, I</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>The Memorial Hospital</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Mid Coast Geriatric Services Corporation</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>123 Medical Center Drive</AddressLine1Txt>
          <CityNm>Brunswick</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04011</ZIPCd>
        </USAddress>
        <EIN>010496221</EIN>
        <PrimaryActivitiesTxt>Home health</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>NorDx</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>301A US Route One</AddressLine1Txt>
          <CityNm>Scarborough</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04074</ZIPCd>
        </USAddress>
        <EIN>010511356</EIN>
        <PrimaryActivitiesTxt>Lab</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth Services</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Quarry Hill</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>PO Box 287</AddressLine1Txt>
          <CityNm>Belfast</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04915</ZIPCd>
        </USAddress>
        <EIN>010213976</EIN>
        <PrimaryActivitiesTxt>Long term care</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
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        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
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        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>St Joseph's Rehab &amp; Residence</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1133 Washington Avenue</AddressLine1Txt>
          <CityNm>Portland</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04103</ZIPCd>
        </USAddress>
        <EIN>010339489</EIN>
        <PrimaryActivitiesTxt>Nursing home</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
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        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Memorial Hospital</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>3073 White Mountain Highway</AddressLine1Txt>
          <CityNm>North Conway</CityNm>
          <StateAbbreviationCd>NH</StateAbbreviationCd>
          <ZIPCd>03860</ZIPCd>
        </USAddress>
        <EIN>020222156</EIN>
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          <BusinessNameLine1Txt>MaineHealth Services</BusinessNameLine1Txt>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>Western Maine Multi-Medical Specialists</BusinessNameLine1Txt>
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          <AddressLine1Txt>181 Main Street</AddressLine1Txt>
          <CityNm>Norway</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04268</ZIPCd>
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        <EIN>010489824</EIN>
        <PrimaryActivitiesTxt>Physician practices</PrimaryActivitiesTxt>
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        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Western Maine Nursing Home Inc</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>181 Main Street</AddressLine1Txt>
          <CityNm>Norway</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04268</ZIPCd>
        </USAddress>
        <EIN>222842655</EIN>
        <PrimaryActivitiesTxt>Nursing home</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>Line 10</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Maine Medical Partners</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>22 Bramhall Street</AddressLine1Txt>
          <CityNm>Portland</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04102</ZIPCd>
        </USAddress>
        <EIN>010442142</EIN>
        <PrimaryActivitiesTxt>Healthcare</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>ME</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <EntityTypeTxt>C</EntityTypeTxt>
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      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Waldo County Healthcare Mgmt Co</BusinessNameLine1Txt>
        </RelatedOrganizationName>
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          <AddressLine1Txt>PO Box 287</AddressLine1Txt>
          <CityNm>Belfast</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
          <ZIPCd>04915</ZIPCd>
        </USAddress>
        <EIN>010485133</EIN>
        <PrimaryActivitiesTxt>Management services</PrimaryActivitiesTxt>
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          <CityNm>Brunswick</CityNm>
          <StateAbbreviationCd>ME</StateAbbreviationCd>
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      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
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      <GiftGrntCapContriFromOthOrgInd>0</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
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      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>0</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
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      <ReimbursementPaidByOtherOrgInd>1</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>1</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>0</TransferFromOtherOrgInd>
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          <BusinessNameLine1Txt>The Memorial Hospital</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>Fair Market Value</MethodOfAmountDeterminationTxt>
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      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>NorDx</BusinessNameLine1Txt>
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        <OtherOrganizationName>
          <BusinessNameLine1Txt>MaineHealth Care at Home</BusinessNameLine1Txt>
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        <MethodOfAmountDeterminationTxt>Fair Market Value</MethodOfAmountDeterminationTxt>
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        <OtherOrganizationName>
          <BusinessNameLine1Txt>MaineHealth</BusinessNameLine1Txt>
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</Return>