<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2023v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-06-27T10:48:55-04:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>203811563</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>JTGOLDSTEIN</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>2200 ARCH ST STE 101</AddressLine1Txt>
        <CityNm>PHILADELPHIA</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>191032136</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>873535838</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>TWINSISTERDOCS FOUNDATION INC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>TWIN</BusinessNameControlTxt>
      <PhoneNum>2155253593</PhoneNum>
      <USAddress>
        <AddressLine1Txt>6020 GREENE STREET</AddressLine1Txt>
        <CityNm>PHILADELPHIA</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>19144</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>DELANA WARDLAW</PersonNm>
      <PersonTitleTxt>DIRECTOR</PersonTitleTxt>
      <PhoneNum>2155253593</PhoneNum>
      <SignatureDt>2024-06-25</SignatureDt>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>DELANA</PersonFirstNm>
        <PersonLastNm>WARDLAW</PersonLastNm>
      </PersonFullName>
      <SSN>XXX-XX-XXXX</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>WILLIAM HENDERSON</PreparerPersonNm>
      <PTIN>P02360120</PTIN>
      <PhoneNum>2155253593</PhoneNum>
      <PreparationDt>2024-06-25</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc2">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>THETWINSISTERDOCS.COM/OUR-FOUNDATION</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="RetDoc3">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>181158</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>181139</ContributionsGiftsGrantsEtcAmt>
      <InvestmentIncomeAmt>19</InvestmentIncomeAmt>
      <TotalRevenueAmt>181158</TotalRevenueAmt>
      <SalariesOtherCompEmplBnftAmt>144225</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>94110</FeesAndOtherPymtToIndCntrctAmt>
      <OtherExpensesTotalAmt>27102</OtherExpensesTotalAmt>
      <TotalExpensesAmt>265437</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-84279</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>13990</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>-70289</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>13990</BOYAmt>
        <EOYAmt>331119</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <EOYAmt>9262</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>13990</BOYAmt>
        <EOYAmt>340381</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <EOYAmt>410670</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>13990</BOYAmt>
        <EOYAmt>-70289</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TWINSISTERDOCS FOUNDATION WAS CREATED TO INCREASE AWARENESS-OF, AND TO ADDRESS, HEALTHCARE DISPARITIES IN UNDER-SERVED COMMUNITIES THAT ARE DISPROPORTIONATELY AFFECTED BY CERTAIN DISEASES AND HEALTH ISSUES. THE FOUNDATION ALSO CONDUCTS VACCINE CLINICS.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>OPERATION OF COMMUNITY VACCINE CLINICS AND THE PROVISION OF ASSOCIATED EDUCATIONAL AND OUTREACH SERVICES RELATED TO IDENTIFIED COMMUNITY HEALTH PROBLEMS.</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>257266</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>257266</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>DELANA WARDLAW</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>20.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>43560</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ELANA MCDONALD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>20.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>33000</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KEITH LEAPHART</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JOVAN GOLDSTEIN</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>NICOLE ROSS</PersonNm>
        <TitleTxt>BOARD MEMBER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>PA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>DELANA WARDLAW</PersonNm>
        <USAddress>
          <AddressLine1Txt>6020 GREENE ST</AddressLine1Txt>
          <CityNm>PHILADELPHIA</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19144</ZIPCd>
        </USAddress>
        <PhoneNum>2155253593</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="RetDoc3">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus1YearAmt>32500</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>181139</CurrentTaxYearAmt>
        <TotalAmt>213639</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <Total509Grp>
        <CurrentTaxYearMinus1YearAmt>32500</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>181139</CurrentTaxYearAmt>
        <TotalAmt>213639</TotalAmt>
      </Total509Grp>
      <PublicSupportTotal509Amt>213639</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearAmt>19</CurrentTaxYearAmt>
        <TotalAmt>19</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearAmt>19</CurrentTaxYearAmt>
        <TotalAmt>19</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus1YearAmt>32500</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>181158</CurrentTaxYearAmt>
        <TotalAmt>213658</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <First5Years509Ind>X</First5Years509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="RetDoc2">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES MARKETING 3,413 OFFICE EXPENSE 1,430 SOFTWARE &amp; TECHNOLOGY 7,345 INSURANCE EXPENSE 8,086 MEDICAL SUPPLIES 2,079 POSTAGE, SHIPPING, &amp; PRIN 824 EVENT SUPPLIES 2,896 NON-INVESTMENT DEPRECIATION 1,029 TOTAL 27,102</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>LAPTOPS 0 5,012 LESS ACCUMULATED DEPRECIATION 0 501 IPADS 0 5,279 LESS ACCUMULATED DEPRECIATION 0 528 TOTAL 0 9,262</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCOUNTS PAYABLE AND ACCRUED EXPENSES 0 8,532 UNSECURED NOTES AND LOANS PAYABLE 0 6,000 DEFERRED GRANT INCOME 0 396,138</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>TWINSISTERDOCS FOUNDATION WAS CREATED TO INCREASE AWARENESS-OF, AND TO ADDRESS, HEALTHCARE DISPARITIES IN UNDER-SERVED COMMUNITIES THAT ARE DISPROPORTIONATELY AFFECTED BY CERTAIN DISEASES AND HEALTH ISSUES. THE FOUNDATION ALSO CONDUCTS VACCINE CLINICS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
