﻿<?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="2024v5.2">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-11-13T10:29:06-06:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>390912608</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>HAWKINS ASH CPAS LLP</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>520 N BROADWAY SUITE 250</AddressLine1Txt>
        <CityNm>GREEN BAY</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>54303</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>391719166</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>ASSOCIATION OF WISCONSIN SURGERY</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>CENTERS INC</BusinessNameLine2Txt>
      </BusinessName>
      <BusinessNameControlTxt>ASSO</BusinessNameControlTxt>
      <PhoneNum>9205605615</PhoneNum>
      <USAddress>
        <AddressLine1Txt>563 CARTER COURT SUITE B</AddressLine1Txt>
        <CityNm>KIMBERLY</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>54136</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>AMANDA SOSNOSKY</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>9205605615</PhoneNum>
      <SignatureDt>2025-11-12</SignatureDt>
      <DiscussWithPaidPreparerInd>1</DiscussWithPaidPreparerInd>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>0</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>AMANDA FARLEY CPA</PreparerPersonNm>
      <PTIN>P01770786</PTIN>
      <PhoneNum>9203369850</PhoneNum>
      <PreparationDt>2025-11-12</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="4">
    <IRS990EZ documentId="RetDoc1234200001" referenceDocumentId="RetDoc1051800001 RetDoc2278000001">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>HTTPS://WWW.WISC-ASC.ORG/</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="6">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>43961</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ProgramServiceRevenueAmt>24460</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>19500</MembershipDuesAmt>
      <InvestmentIncomeAmt>1</InvestmentIncomeAmt>
      <TotalRevenueAmt>43961</TotalRevenueAmt>
      <FeesAndOtherPymtToIndCntrctAmt>68685</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>5590</OccupancyRentUtltsAndMaintAmt>
      <PrintingPublicationsPostageAmt>201</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>16985</OtherExpensesTotalAmt>
      <TotalExpensesAmt>91461</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>-47500</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>-39304</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>-86804</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>1519</BOYAmt>
        <EOYAmt>2960</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <OtherAssetsTotalDetail>
        <BOYAmt>2601</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </OtherAssetsTotalDetail>
      <Form990TotalAssetsGrp>
        <BOYAmt>4120</BOYAmt>
        <EOYAmt>2960</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>43424</BOYAmt>
        <EOYAmt>89764</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>-39304</BOYAmt>
        <EOYAmt>-86804</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>THE PRIMARY EXEMPT PURPOSE OF WISCA IS TO PROVIDE A FORUM FOR THE EXCHANGE OF IDEAS AMONG PROFESSIONALS ENGAGED IN THE CLINICAL AND ADMINISTRATIVE MANAGEMENT OF AMBULATORY SURGICAL CENTERS.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>TO INFORM MEMBERS OF CHANGES IN THE PROFESSION THROUGH CONTINUING MEDICAL EDUCATION, SEMINARS AND NEWSLETTERS</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>22776</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>22776</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ERIC OSTERMANN</PersonNm>
        <TitleTxt>EXECUTIVE DIRECTOR</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>AMANDA SOSNOSKY MBA BSN RN-CASC</PersonNm>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>ANGELA GILFILLAN CMPE CASC</PersonNm>
        <TitleTxt>SECRETARY/TREASURER</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>4.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>SHELLY HOFFMAN RN BSN MASL</PersonNm>
        <TitleTxt>DIRECTOR-AT-LARGE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm>FAWN ESSER-LIPP RN BSN CASC CRC</PersonNm>
        <TitleTxt>DIRECTOR-AT-LARGE</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>2.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <InfoInScheduleOPartVInd>X</InfoInScheduleOPartVInd>
      <ActivitiesNotPreviouslyRptInd>0</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>0</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>0</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc1039700001">1</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>0</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <MadeLoansToFromOfficersInd>0</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>0</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>BADGER BAY MANAGEMENT COMPANY LLC</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>563 CARTER COURT SUITE B</AddressLine1Txt>
          <CityNm>KIMBERLY</CityNm>
          <StateAbbreviationCd>WI</StateAbbreviationCd>
          <ZIPCd>54136</ZIPCd>
        </USAddress>
        <PhoneNum>9205605610</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>0</ForeignFinancialAccountInd>
      <ForeignOfficeInd>0</ForeignOfficeInd>
      <DonorAdvisedFndsInd>0</DonorAdvisedFndsInd>
      <OperateHospitalInd>0</OperateHospitalInd>
      <TanningServicesProvidedInd>0</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>0</RelatedOrganizationCtrlEntInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc1039700001">0</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>1</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>1</AgreeCarryoverPriorYearInd>
      <DuesAssessmentsAmt>19500</DuesAssessmentsAmt>
      <NonDeductibleLbbyngPltclCYAmt>16500</NonDeductibleLbbyngPltclCYAmt>
      <NonDedLbbyngPltclCyovAmt>17451</NonDedLbbyngPltclCyovAmt>
      <NonDeductibleLbbyngPltclTotAmt>33951</NonDeductibleLbbyngPltclTotAmt>
      <AggregateReportedDuesNtcAmt>16965</AggregateReportedDuesNtcAmt>
      <CarriedOverAmt>2535</CarriedOverAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II-B, LINE 1, LOBBYING ACTIVITIES:</FormAndLineReferenceDesc>
        <ExplanationTxt>LEGISLATIVE SERVICES &amp; CONSULTING</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc1051800001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 4 - OTHER INVESTMENT INCOME</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: INTEREST INCOME. AMOUNT: 1.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: TRAVEL. AMOUNT: 10,614. DESCRIPTION: FEES &amp; REGISTRATION. AMOUNT: 2,190. DESCRIPTION: SUPPLIES. AMOUNT: 991. DESCRIPTION: INSURANCE. AMOUNT: 500. DESCRIPTION: PROMOTION. AMOUNT: 1,190. DESCRIPTION: HONORARIUM. AMOUNT: 1,500. TOTAL TO FORM 990-EZ, LINE 16: 16,985.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: PREPAID CONFERENCE EXPENSE. BEG. OF YEAR AMOUNT: 1,425. END OF YEAR AMOUNT: 0. DESCRIPTION: PREPAID WEBSITE FEE. BEG. OF YEAR AMOUNT: 1,176. END OF YEAR AMOUNT: 0.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART II, LINE 26 - OTHER LIABILITIES</FormAndLineReferenceDesc>
        <ExplanationTxt>DESCRIPTION: ACCOUNTS PAYABLE. BEG. OF YEAR AMOUNT: 39,674. END OF YEAR AMOUNT: 74,514. DESCRIPTION: DEFERRED MEMBERSHIP REVENUE - OTHER. BEG. OF YEAR AMOUNT: 3,750. END OF YEAR AMOUNT: 15,250.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
    <TransferPrsnlBnftContractsDecl documentId="RetDoc2278000001">
      <DeclarationDesc>THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT.</DeclarationDesc>
    </TransferPrsnlBnftContractsDecl>
  </ReturnData>
</Return>