<?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>2024-06-25T16:43:22-04:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>475114730</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>MM CALABRESE LLC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>PO BOX 1747</AddressLine1Txt>
        <CityNm>PARAMUS</CityNm>
        <StateAbbreviationCd>NJ</StateAbbreviationCd>
        <ZIPCd>07653</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>260621499</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>MEDICAL STAFF OF HOBOKEN UMC</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>MEDI</BusinessNameControlTxt>
      <PhoneNum>2014183031</PhoneNum>
      <USAddress>
        <AddressLine1Txt>308 WILLOW AVE</AddressLine1Txt>
        <CityNm>HOBOKEN</CityNm>
        <StateAbbreviationCd>NJ</StateAbbreviationCd>
        <ZIPCd>07030</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>ANTHONY KYREAKAKIS</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>2014183031</PhoneNum>
      <SignatureDt>2024-06-25</SignatureDt>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>ANTHONY</PersonFirstNm>
        <PersonLastNm>KYREAKAKIS</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>GREGORY H ARIYAN</PreparerPersonNm>
      <PTIN>P01877925</PTIN>
      <PhoneNum>9082957761</PhoneNum>
      <PreparationDt>2024-06-25</PreparationDt>
      <SelfEmployedInd>X</SelfEmployedInd>
    </PreparerPersonGrp>
    <TaxYr>2023</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="2">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc3">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>15814</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>15814</ContributionsGiftsGrantsEtcAmt>
      <TotalRevenueAmt>15814</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>42308</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>1620</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>5047</OtherExpensesTotalAmt>
      <TotalExpensesAmt>48975</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-33161</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>30471</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>10892</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>8202</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>30471</BOYAmt>
        <EOYAmt>8202</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>30471</BOYAmt>
        <EOYAmt>8202</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>30471</BOYAmt>
        <EOYAmt>8202</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>TO SERVE AS PRIMARY MEAN OF REPORTING AND REVIEWING TO THE BOARD/CEO CONCERNING THE QUALITY OF THE PROFESSIONAL SERVICES PROVIDED BY THE MEDICAL STAFF</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>TO SERVE AS PRIMARY MEAN OF REPORTING AND REVIEWING TO THE BOARD/CEO CONCERNING THE QUALITY OF THE PROFESSIONAL SERVICES PROVIDED BY THE MEDICAL STAFF</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANTHONY KYREAKAKIS</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</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>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>MEDICAL STAFF OF HOBOKEN</BusinessNameLine1Txt>
          <BusinessNameLine2Txt>MEDICAL STAFF OF HOBOKEN</BusinessNameLine2Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>380 WILLOW AVE</AddressLine1Txt>
          <AddressLine2Txt>380 WILLOW AVE</AddressLine2Txt>
          <CityNm>HOBOKEN</CityNm>
          <StateAbbreviationCd>NJ</StateAbbreviationCd>
          <ZIPCd>07030</ZIPCd>
        </USAddress>
        <PhoneNum>9082957761</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>
    </IRS990EZ>
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES OFFICE 5,047 TOTAL 5,047</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 20</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCREASES 10,892</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>TO SERVE AS PRIMARY MEAN OF REPORTING AND REVIEWING TO THE BOARD/CEO CONCERNING THE QUALITY OF THE PROFESSIONAL SERVICES PROVIDED BY THE MEDICAL STAFF</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
