<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2022v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-05-03T08:57:35-04:00</ReturnTs>
    <TaxPeriodEndDt>2023-09-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>232213999</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>HAMILTON &amp; MUSSER PC CPAS</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>176 CUMBERLAND PARKWAY</AddressLine1Txt>
        <CityNm>MECHANICSBURG</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>17055</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2022-10-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>250988868</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ERIE COUNTY MEDICAL SOCIETY</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>ERIE</BusinessNameControlTxt>
      <PhoneNum>8337701542</PhoneNum>
      <USAddress>
        <AddressLine1Txt>400 WINDING CREEK BLVD</AddressLine1Txt>
        <CityNm>MECHANICSBURG</CityNm>
        <StateAbbreviationCd>PA</StateAbbreviationCd>
        <ZIPCd>17050</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>KAELA LUCHS</PersonNm>
      <PersonTitleTxt>EXECUTIVE DIRECTOR</PersonTitleTxt>
      <PhoneNum>7175587870</PhoneNum>
      <SignatureDt>2023-04-18</SignatureDt>
      <DiscussWithPaidPreparerInd>true</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <SigningOfficerGrp>
      <PersonFullName>
        <PersonFirstNm>KAELA</PersonFirstNm>
        <PersonLastNm>LUCHS</PersonLastNm>
      </PersonFullName>
      <SSN>999009999</SSN>
    </SigningOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>MATTHEW G HAAR CPA MST</PreparerPersonNm>
      <PTIN>P02047932</PTIN>
      <PhoneNum>7176973888</PhoneNum>
      <PreparationDt>2024-04-18</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2022</TaxYr>
    <BuildTS>2023-04-26 12:10:37Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc3">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>WWW.ERIECOUNTYMEDICALSOCIETY.ORG</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>104368</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ProgramServiceRevenueAmt>5235</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>32140</MembershipDuesAmt>
      <InvestmentIncomeAmt>10710</InvestmentIncomeAmt>
      <SaleOfAssetsGrossAmt>56283</SaleOfAssetsGrossAmt>
      <CostOrOtherBasisExpenseSaleAmt>51813</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>4470</GainOrLossFromSaleOfAssetsAmt>
      <TotalRevenueAmt>52555</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>46880</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>62</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>17328</OtherExpensesTotalAmt>
      <TotalExpensesAmt>64270</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-11715</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>191297</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>8321</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>187903</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>24275</BOYAmt>
        <EOYAmt>22815</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>177321</BOYAmt>
        <EOYAmt>173303</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>201596</BOYAmt>
        <EOYAmt>196118</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>10299</BOYAmt>
        <EOYAmt>8215</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>191297</BOYAmt>
        <EOYAmt>187903</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE PURPOSE OF THIS SOCIETY SHALL BE TO UNITE WITH SIMILAR SOCIETIES OF OTHER COUNTIES TO FORM AND MAINTAIN THE PENNSYLVANIA MEDICAL SOCIETY; TO EXTEND MEDICAL KNOWLEDGE AND ADVANCE MEDICAL SCIENCE; TO ELEVATE AND MAINTAIN THE STANDARDS OF MEDICAL EDUCATION; TO UPHOLD THE ETHICS AND DIGNITY OF THE MEDICAL PROFESSION; AND TO PROMOTE AND ENLIGHTEN PUBLIC OPINION WITH REGARDS TO THE MANY IMPORTANT PROBLEMS OF PUBLIC HEALTH AND PATIENT SAFETY, SO THAT THE PROFESSION SHALL BECOME MORE USEFUL TO THE PUBLIC IN THE PREVENTION AND MANAGEMENT OF DISEASE AND IN PROLONGING AND ADDING COMFORT TO LIFE.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>13TH ANNUAL HEALTH EXPO (PUBLIC HEALTH EDUCATION EVENT; ONE MEMBER NETWORKING EVENT; MEMBER DINNER; QUARTERLY NEWSLETTER; E- NEWSLETTERS; PUBLIC SERVICE ANNOUNCEMENTS ON HEALTH TOPICS.</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <InfoInScheduleOPartIVInd>X</InfoInScheduleOPartIVInd>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KELLI DESANCTIS DO</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>JEFFREY MCGOVERN MD</PersonNm>
        <TitleTxt>IMMED. PAST</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AMANDA WINCIK MD</PersonNm>
        <TitleTxt>PRESIDENT-EL</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>LAURA GEPHART MD</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>NARENDRA BHAGWANDIEN MD</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.25</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>PETER S LUND MD</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KIRK STEEHLER DO</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.25</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>GEOFFREY BETZ MD</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.25</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>BRENDAN DEMPSEY MD</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.25</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>CASEY GERNOVICH DO</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.25</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>TIMOTHY PELKOWSKI MD</PersonNm>
        <TitleTxt>BOARD DIRECT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>0.50</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>KAELA LUCHS</PersonNm>
        <TitleTxt>EXECUTIVE DI</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>4.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc2">true</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <PersonNm>ANNETTE WEAVER</PersonNm>
        <USAddress>
          <AddressLine1Txt>400 WINDING CREEK BLVD</AddressLine1Txt>
          <CityNm>MECHANICSBURG</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>17050</ZIPCd>
        </USAddress>
        <PhoneNum>7175587750</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc2">false</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleC documentId="RetDoc2">
      <SubstantiallyAllDuesNondedInd>false</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>true</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>false</AgreeCarryoverPriorYearInd>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES SUPPLIES 221 WEBSITE 1,703 TRAVEL 3,311 INSURANCE 1,915 INVEST MGMT FEES 2,702 MEETINGS AND CONFERENCES 2,888 SERVICE CHARGES 293 AWARDS 25 HONORARIA 100 EQUIPMENT AND SPACE RENT. 4,170 TOTAL 17,328</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 20</FormAndLineReferenceDesc>
        <ExplanationTxt>UNREALIZED GAIN ON INVESTMENTS 8,321</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24</FormAndLineReferenceDesc>
        <ExplanationTxt>PREPAID EXPENSES AND DEFERRED CHARGES 451 700 INVESTMENTS 176,870 172,603 TOTAL 177,321 173,303</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26</FormAndLineReferenceDesc>
        <ExplanationTxt>ACCOUNTS PAYABLE AND ACCRUED EXPENSES 3,774 5,220 DEFERRED REVENUE 6,525 2,995</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PURPOSE OF THIS SOCIETY SHALL BE TO UNITE WITH SIMILAR SOCIETIES OF OTHER COUNTIES TO FORM AND MAINTAIN THE PENNSYLVANIA MEDICAL SOCIETY; TO EXTEND MEDICAL KNOWLEDGE AND ADVANCE MEDICAL SCIENCE; TO ELEVATE AND MAINTAIN THE STANDARDS OF MEDICAL EDUCATION; TO UPHOLD THE ETHICS AND DIGNITY OF THE MEDICAL PROFESSION; AND TO PROMOTE AND ENLIGHTEN PUBLIC OPINION WITH REGARDS TO THE MANY IMPORTANT PROBLEMS OF PUBLIC HEALTH AND PATIENT SAFETY, SO THAT THE PROFESSION SHALL BECOME MORE USEFUL TO THE PUBLIC IN THE PREVENTION AND MANAGEMENT OF DISEASE AND IN PROLONGING AND ADDING COMFORT TO LIFE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART IV</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY HAS A MANAGEMENT SERVICE AGREEMENT WITH THE PA MEDICAL SOCIETY (PAMED), IN WHICH PAMED PROVIDES ADMINISTRATIVE SERVICES TO THE SOCIETY, WHICH INCLUDES MEMBERSHIP/ADMINISTRATION COORDINATION, BOARD AND COMMITTEE SUPPORT, MARKETING AND COMMUNICATIONS, MEETING COORDINATION, TECHNOLOGY MANAGEMENT, AND FINANCIAL MANAGEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>
