<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile" returnVersion="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-02-16T17:12:14-06:00</ReturnTs>
    <TaxPeriodEndDt>2023-10-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>043279487</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>GREGORY M ELIASEN CPA PC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>28 ANDOVER STREET SUITE 220</AddressLine1Txt>
        <CityNm>ANDOVER</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>01810</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-11-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>237089741</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>MASS</BusinessNameControlTxt>
      <PhoneNum>7814347809</PhoneNum>
      <USAddress>
        <AddressLine1Txt>860 WINTER STREET</AddressLine1Txt>
        <CityNm>WALTHAM</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02451</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>MARK A ROCKOFF MD</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>7814347809</PhoneNum>
      <SignatureDt>2024-02-16</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>MARK</PersonFirstNm>
        <PersonLastNm>ROCKOFF MD</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>GREGORY M ELIASEN CPA PC</PreparerPersonNm>
      <PTIN>P00234730</PTIN>
      <PhoneNum>9787833949</PhoneNum>
      <PreparationDt>2024-02-14</PreparationDt>
    </PreparerPersonGrp>
    <AdditionalFilerInformation>
      <TrustedCustomerGrp>
        <TrustedCustomerCd>2</TrustedCustomerCd>
        <AuthenticationAssuranceLevelCd>AAL1</AuthenticationAssuranceLevelCd>
        <IdentityAssuranceLevelCd>IAL1</IdentityAssuranceLevelCd>
      </TrustedCustomerGrp>
    </AdditionalFilerInformation>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="6">
    <IRS990 documentId="RetDoc1038000001" referenceDocumentId="RetDoc1044400001">
      <PrincipalOfficerNm>MARK A ROCKOFF MD</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>860 WINTER STREET</AddressLine1Txt>
        <CityNm>WALTHAM</CityNm>
        <StateAbbreviationCd>MA</StateAbbreviationCd>
        <ZIPCd>02451</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>485472</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>0</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>1857</FormationYr>
      <LegalDomicileStateCd>MA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY (THE "SOCIETY") IS A NOT-FOR-PROFIT ORGANIZATIONESTABLISHED IN MARCH 1857 TO PROVIDE FINANCIAL ASSISTANCE TO MEMBERS OF THE MEDICAL PROFESSION.</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>13</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>13</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
      <TotalVolunteersCnt>0</TotalVolunteersCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <NetUnrelatedBusTxblIncmAmt>0</NetUnrelatedBusTxblIncmAmt>
      <PYContributionsGrantsAmt>206104</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>132006</CYContributionsGrantsAmt>
      <PYProgramServiceRevenueAmt>0</PYProgramServiceRevenueAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>133751</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>184745</CYInvestmentIncomeAmt>
      <PYOtherRevenueAmt>0</PYOtherRevenueAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>339855</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>316751</CYTotalRevenueAmt>
      <PYGrantsAndSimilarPaidAmt>132650</PYGrantsAndSimilarPaidAmt>
      <CYGrantsAndSimilarPaidAmt>112680</CYGrantsAndSimilarPaidAmt>
      <PYBenefitsPaidToMembersAmt>0</PYBenefitsPaidToMembersAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>0</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>0</CYSalariesCompEmpBnftPaidAmt>
      <PYTotalProfFndrsngExpnsAmt>0</PYTotalProfFndrsngExpnsAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>59203</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>67400</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>191853</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>180080</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>148002</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>136671</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>6351421</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>6589470</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>16270</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>7227</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>6335151</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>6582243</NetAssetsOrFundBalancesEOYAmt>
      <MissionDesc>SEE SCHEDULE OMASSACHUSETTS MEDICAL BENEVOLENT SOCIETY (THE "SOCIETY") IS A NOT-FOR-PROFIT ORGANIZATION ESTABLISHED IN MARCH 1857 TO PROVIDE FINANCIAL ASSISTANCE TO MEMBERS OF THE MEDICAL PROFESSION, THEIR WIDOWS AND THEIR CHILDREN. THE MISSION OF THE MMBS IS TO SUPPORT THE RECOVERY AND REHABILITATION OF THE MA PHYSICIANS AND THEIR FAMILIES FROM PERSONAL, PROFESSIONAL OR FINANCIAL CRISIS, BY PROVIDING TIME-TARGETED FINANCIAL ASSISTANCE. THE SOCIETY'S COLLEGIAL OUTREACH HELPS MEMBERS OF THE MEDICAL FAMILY HOLD TO THEIR POTENTIAL AS VALUED MEMBERS OF THE PROFESSION AND THE COMMUNITY.</MissionDesc>
      <SignificantNewProgramSrvcInd>0</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>0</SignificantChangeInd>
      <ExpenseAmt>112680</ExpenseAmt>
      <GrantAmt>112680</GrantAmt>
      <Desc>THE SOCIETY PROVIDES DIRECT ASSISTANCE IN THE FORM OF FINANCIAL AND OTHER ASSISTANCE TO INDIVIDUALS ON "NEED BASE" ASSESSMENT THAT IS DETERMINED BY PROFESSIONAL SOCIAL WORKERS AND APPROVED BY THE BOARD OF TRUSTEES. CRITERIA OF NEED ASSESSMENT IS BASED ON AN EVALUATION OF EACH INDIVIDUAL CASE AND A REVIEW OF THE CIRCUMSTANCE THAT LED TO THE REQUEST FOR ASSISTANCE.</Desc>
      <ProgSrvcAccomActy2Grp>
        <ExpenseAmt>23832</ExpenseAmt>
        <Desc>SERVICES OF SOCIAL WORKERS TO EVALUATE THE FINANCIAL AND SOCIAL NEEDS OF INDIVIDUALS THAT HAVE BEEN REFERRED TO THE SOCIETY AS A POTENTIAL BENEFICIARY.</Desc>
      </ProgSrvcAccomActy2Grp>
      <TotalProgramServiceExpensesAmt>136512</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="RetDoc1039100001">1</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="RetDoc1234500001">1</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>0</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>0</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>0</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="RetDoc1040000001">0</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="RetDoc1040000001">0</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="RetDoc1040000001">0</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="RetDoc1040000001">0</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd>1</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="RetDoc1040000001">0</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="RetDoc1040000001">0</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="RetDoc1040000001">0</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="RetDoc1040000001">1</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="RetDoc1040000001">0</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="RetDoc1040000001">0</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="RetDoc1040000001">0</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>0</SchoolOperatingInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <ForeignActivitiesInd>0</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>0</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>0</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>0</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>0</FundraisingActivitiesInd>
      <GamingActivitiesInd>0</GamingActivitiesInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <GrantsToOrganizationsInd referenceDocumentId="RetDoc1041900001">0</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd referenceDocumentId="RetDoc1041900001">1</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>0</ScheduleJRequiredInd>
      <TaxExemptBondsInd>0</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>0</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>0</PYExcessBenefitTransInd>
      <LoanOutstandingInd>0</LoanOutstandingInd>
      <GrantToRelatedPersonInd>0</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>0</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>0</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>0</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>0</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>0</DeductibleArtContributionInd>
      <TerminateOperationsInd>0</TerminateOperationsInd>
      <PartialLiquidationInd>0</PartialLiquidationInd>
      <DisregardedEntityInd>0</DisregardedEntityInd>
      <RelatedEntityInd>0</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>0</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>0</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>1</ScheduleORequiredInd>
      <IRPDocumentCnt>0</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <EmployeeCnt>0</EmployeeCnt>
      <UnrelatedBusIncmOverLimitInd>0</UnrelatedBusIncmOverLimitInd>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>0</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>0</NondeductibleContributionsInd>
      <QuidProQuoContributionsInd>0</QuidProQuoContributionsInd>
      <Form8282PropertyDisposedOfInd>0</Form8282PropertyDisposedOfInd>
      <IndoorTanningServicesInd>0</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>0</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>0</SubjectToExcsTaxNetInvstIncInd>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>13</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>13</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>0</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>0</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>0</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>0</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>1</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>1</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>1</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>1</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>1</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>0</OfficerMailingAddressInd>
      <LocalChaptersInd>0</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>1</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>1</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>1</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>1</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>1</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>1</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>0</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>0</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>0</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>MA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>JENNIFER DAY</BusinessNameLine1Txt>
        </BusinessName>
        <PhoneNum>7814347809</PhoneNum>
        <USAddress>
          <AddressLine1Txt>860 WINTER STREET</AddressLine1Txt>
          <CityNm>WALTHAM</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02451</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>RONALD W DUNLAP MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARILYN PRICE MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DEAN NICASTRO ESQ</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MATT HITRON MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>M DONNA YOUNGER MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARCIA FRANKLIN MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CHARLES A WELCH MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK A ROCKOFF MD</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>AMY E VINSON MD</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DENNIS DIMITRI MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DONNA NORRIS MD</PersonNm>
        <TitleTxt>VICE PRESIDENT</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>DANIA ALI-AHMAD MD</PersonNm>
        <TitleTxt>SECRETARY</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>LISA I IEZZONI MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>0</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>132006</AllOtherContributionsAmt>
      <TotalContributionsAmt>132006</TotalContributionsAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>122600</TotalRevenueColumnAmt>
        <ExclusionAmt>122600</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>230866</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>168721</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>62145</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>62145</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>62145</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>316751</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>62145</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>122600</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticIndividualsGrp>
        <TotalAmt>112680</TotalAmt>
        <ProgramServicesAmt>112680</ProgramServicesAmt>
      </GrantsToDomesticIndividualsGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>4700</TotalAmt>
        <ManagementAndGeneralAmt>4700</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <OtherExpensesGrp>
        <Desc>PROFESSIONAL FEES</Desc>
        <TotalAmt>23832</TotalAmt>
        <ProgramServicesAmt>23832</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>INVESTMENT MGT FEES</Desc>
        <TotalAmt>20082</TotalAmt>
        <ManagementAndGeneralAmt>20082</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>POSTAGE AND PRINTING</Desc>
        <TotalAmt>11707</TotalAmt>
        <ManagementAndGeneralAmt>11707</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>CONSULTING SERVICES</Desc>
        <TotalAmt>5000</TotalAmt>
        <ManagementAndGeneralAmt>5000</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>2079</TotalAmt>
        <ManagementAndGeneralAmt>2079</ManagementAndGeneralAmt>
      </AllOtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>180080</TotalAmt>
        <ProgramServicesAmt>136512</ProgramServicesAmt>
        <ManagementAndGeneralAmt>43568</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>307457</BOYAmt>
        <EOYAmt>270422</EOYAmt>
      </CashNonInterestBearingGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>4897079</BOYAmt>
        <EOYAmt>5167401</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>1146885</BOYAmt>
        <EOYAmt>1151647</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>6351421</BOYAmt>
        <EOYAmt>6589470</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>6270</BOYAmt>
        <EOYAmt>2127</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <GrantsPayableGrp>
        <BOYAmt>10000</BOYAmt>
        <EOYAmt>5100</EOYAmt>
      </GrantsPayableGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>16270</BOYAmt>
        <EOYAmt>7227</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>4299153</BOYAmt>
        <EOYAmt>4535835</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>2035998</BOYAmt>
        <EOYAmt>2046408</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>6335151</BOYAmt>
        <EOYAmt>6582243</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>6351421</BOYAmt>
        <EOYAmt>6589470</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>136671</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>110420</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>1</AccountantCompileOrReviewInd>
      <AcctCompileOrReviewBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </AcctCompileOrReviewBasisGrp>
      <FSAuditedInd>0</FSAuditedInd>
      <AuditCommitteeInd>0</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>211334</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>179028</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>209295</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>206104</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>132006</CurrentTaxYearAmt>
        <TotalAmt>937767</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>211334</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>179028</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>209295</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>206104</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>132006</CurrentTaxYearAmt>
        <TotalAmt>937767</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>530311</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>407456</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>177341</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>98838</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>80342</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>138758</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>122600</CurrentTaxYearAmt>
        <TotalAmt>617879</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>1555646</TotalSupportAmt>
      <PublicSupportCY170Pct>0.26190</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.26390</PublicSupportPY170Pct>
      <TenPctFactsCrcmstncsTestCYInd>X</TenPctFactsCrcmstncsTestCYInd>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A SECTION C LINE 17A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAINTAINS A CONTINUOUS AND BONA FIDE PROGRAM FOR SOLICITATION OF FUNDS.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="RetDoc1234500001">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <CYEndwmtFundGrp>
        <BeginningYearBalanceAmt>2035998</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>10410</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2046408</EndYearBalanceAmt>
      </CYEndwmtFundGrp>
      <CYMinus1YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2335829</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>-299831</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2035998</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2061284</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>274545</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2335829</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>2039372</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>21912</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2061284</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
      <CYMinus4YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1964695</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>74677</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>2039372</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <EndowmentsHeldUnrelatedOrgInd>1</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>BENEFICIAL INTEREST IN PERPETUAL TRUSTS</Desc>
        <BookValueAmt>1151647</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>1151647</TotalBookValueOtherAssetsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>INTENDED USES OF ENDOWMENT FUNDS SCHEDULE D PAGE 2 PART V LINE 4 TEMPORARILY RESTRICTED NET ASSETS ARE AVAILABLE TO SUPPORT THE SOCIETY'S SUPPORT SERVICES SUBJECT TO CERTAIN DONOR IMPOSED RESTRICTIONS. THE MOST SIGNIFICANT COMPONENT OF THE BALANCE OF TEMPORARILY RESTRICTED NET ASSETS REPRESENTS REALIZED AND UNREALIZED APPRECIATION EARNED ON PERMANENTLY RESTRICTED NET ASSETS WHICH ARE CLASSIFIED AS TEMPORARILY RESTRICTED UNTIL USED FOR UNRESTRICTED OR RESTRICTED PURPOSES. CERTAIN PERMANENTLY RESTRICTED NET ASSETS ARE RESTRICTED TO INVESTMENT IN PERPETUITY, WITH INTEREST AND DIVIDEND INCOME AVAILABLE FOR UNRESTRICTED USE. SUBJECT TO THE RECENTLY ENACTED MASSACHUSETTS LAW THE UNIFORM PRUDENT MANAGEMENT OF INSTITUTIONAL FUNDS ACT ("UPMIFA") THE PRINCIPAL MAY BE SPENT GIVEN A GOOD FAITH DETERMINATION THAT SUCH SPENDING IS PRUDENT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="RetDoc1041900001">
      <GrantRecordsMaintainedInd>1</GrantRecordsMaintainedInd>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SUPPORT TO BENEFICIARIES</GrantTypeTxt>
        <RecipientCnt>17</RecipientCnt>
        <CashGrantAmt>112680</CashGrantAmt>
        <ValuationMethodUsedDesc>BOOK</ValuationMethodUsedDesc>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE I PART I LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>PROCEDURE FOR AWARDING &amp; MONITORING ASSISTANCE SCHEDULE I PART I LINE 2 FINANCIAL AID FROM THE FUNDS OF THE SOCIETY MAY BE MADE FOR THE RELIEF OF ANY NEEDY MEMBER OF THE MEDICAL PROFESSION OR CLOSE RELATIVE. THE COMMITTEE ON ASSISTANCE SHALL HAVE AUTHORITY AT ANY TIME TO RENDER ASSISTANCE TO ANY NEEDY MEMBER OF THE MEDICAL PROFESSION OR THEIR SPOUSES OR CHILDREN. THE COMMITTEE ON ASSISTANCE SHALL INFORM ITSELF OF THE CIRCUMSTANCES OF ALL APPLICATIONS FOR FINANCIAL AID AND SHALL RECOMMEND THE BENEFICIARIES TO RECEIVE THIS AID AND THE AMOUNT OF THE AID TO BE AWARDED EACH BENEFICIARY. NO MONEY SHALL BE AWARDED TO ANY BENEFICIARY FOR A PERIOD OF MORE THAN ONE YEAR, THOUGH AT THE END OF EACH YEAR ANY BENEFICIARY MAY APPLY FOR ADDITIONAL AID AS OUTLINED IN ARTICLE VIII OF THE BY-LAWS. THE NAMES OF ALL BENEFICIARIES SHALL BE KNOWN ONLY TO THE COUNCIL.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS AND TRUSTEES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS AND TRUSTEES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS AND TRUSTEES</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF FORM 990 AND ALL SCHEDULES IS PROVIDED TO ALL BOARD MEMBERS FOR REVIEW. THE BOARD VOTES TO ACCEPT THE FORMS AND AUTHORIZE THE PRESIDENT OR THE TREASURER TO SIGN THE RETURN AND FILE WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 6 PART VI SECTION B LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>PURSUANT TO A POLICY STATEMENT ON CONFLICTS OF INTEREST ADOPTED BY THE MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY'S ("MMBS") COUNCIL (THE "POLICY"), THE COUNCILIS RESPONSIBLE FOR RECEIVING DISCLOSURES AS TO ANY ACTUAL OR POTENTIAL CONFLICTS OF INTEREST WHICH ANY COUNCIL MEMBER, TRUSTEE, OFFICER OR COMMITTEE MEMBER OF THE SOCIETY MAY HAVE. CONFLICTS OF INTEREST PROCEDURES ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 7 PART VI SECTION C LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS AND THE CONFLICT OF INTEREST POLICY ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 7 PART VI SECTION A LINE 10</FormAndLineReferenceDesc>
        <ExplanationTxt>THE GOVERNING BODY OF THE MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY HAS BEEN PROVIDED A COPY OF THE FORM 990 AND HAS REVIEWED IT. THE BOARD VOTED TO ACCEPT THE 990 AND AUTHORIZE THE PRESIDENT OR THE TREASURER TO SIGN THE RETURN AND FILE WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 7 PART VI SECTION B LINE 15A 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRESIDENT, OFFICERS AND TRUSTEES AT MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY ARE NOT COMPENSATED FOR THEIR TIME AND SERVICE TO THE SOCIETY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 7 PART VI SECTION A LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>PER ARTICLE I OF THE MMBS' BYLAWS, MEMBERSHIP IS ACHIEVED THROUGH THE FOLLOWING: SECTION 1. THIS SOCIETY SHALL CONSIST OF PHYSICIANS EITHER ACTIVE OR RETIRED. NON-PHYSICIANS AND ORGANIZATIONS MAY ALSO OBTAIN MEMBERSHIP. SECTION 2. MEMBERSHIP WILL BE GRANTED UPON OF AN ANNUAL DONATION DECIDED UPON AND APPROVED YEARLY BY THE COUNCIL OF THE SOCIETY. SECTION 3. LIFE MEMBERSHIP MAY BE ATTAINED BY ANYONE DONATING TEN TIMES THE COUNCIL APPROVED ANNUAL AMOUNT OR MORE IN A LUMP SUM. SECTION 4. BENEFACTOR STATUS AND RECOGNITION MAY BE ACHIEVED BY AN INDIVIDUAL OR ORGANIZATION DONATING AN AMOUNT EQUIVALENT TO FOUR TIMES OR MORE OF THE MINIMUM DONATION REQUIRED FOR LIFE MEMBERSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PAGE 7 PART VI SECTION A LINE 7A 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS VOTE FOR THEIR BOARD OF DIRECTORS AND MAKE GOVERNING DECISIONS AT THEIR ANNUAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>PURSUANT TO A POLICY STATEMENT ON CONFLICTS OF INTEREST ADOPTED BY THE MASSACHUSETTS MEDICAL BENEVOLENT SOCIETY'S ("MMBS") COUNCIL (THE "POLICY"), THE COUNCIL IS RESPONSIBLE FOR RECEIVING DISCLOSURES AS TO ANY ACTUAL OR POTENTIAL CONFLICTS OF INTEREST WHICH ANY COUNCIL MEMBER, TRUSTEE, OFFICER OR COMMITTEE MEMBER OF THE SOCIETY MAY HAVE. CONFLICTS OF INTEREST PROCEDURES ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
