Liabilities / Assets
Score unavailable
Liabilities-to-assets requires both liabilities and assets on the latest valid filing.
John Fx Mahoney MD Foundation
EIN 87-2245155 • 501(c)3 • Milton Village, MA
Profile
To preserve and further the legacy of dr mahoneys commitment and contributions to neurology, his insatisable curisity and tireless dedication to compassionate cargiving and helping others by foresting and driving solutions in medicine and education
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
No value available
Liabilities / Revenue
Score unavailable
Liabilities-to-revenue requires both liabilities and revenue on the latest valid filing.
Net Margin
16th percentile
Higher net margin than 16% of similar nonprofits.
Top Officer Pay
84th percentile
Higher top officer pay than 84% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
Score unavailable
A valid growth rate could not be computed from the available filing history.
Revenue Growth
Score unavailable
A valid growth rate could not be computed from the available filing history.
Balance Sheet
Assets
Up$8,341
Up $1,793 (+27%) from 2024
Liabilities
-
No earlier filing loaded for comparison.
Net Assets
Up$8,341
Up $1,793 (+27%) from 2024
Revenue
Up$63,079
Up $29,219 (+86%) from 2024
Expenses
Up$61,286
Up $14,616 (+31%) from 2024
Net Income
Up$1,793
Up $14,603 (+114%) from 2024
Trend Graphs
Filings
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
- Assets
- $8,341
- Liabilities
- -
- Net assets
- $8,341
- Revenue
- $63,079
- Expenses
- $61,286
- Net income
- $1,793
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Jan 1, 2025 to Dec 31, 2025
- Signed
- Mar 6, 2026
- Return Version
- 2025v4.0
- Gross Receipts
- $63,079
Mission and Program Overview
Mission
To preserve and further the legacy of dr mahoneys commitment and contributions to neurology, his insatisable curisity and tireless dedication to compassionate cargiving and helping others by foresting and driving solutions in medicine and education
Program Services
| Description | Grants | Expenses |
|---|---|---|
| Donation Neurology Center to fund developmentresearch and capital projects | $0 | $61,286 |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Jon Mahoney | Treasurer | PT | $0 | - | - |
| Darryl Elliot | President | PT | $0 | - | - |
| Dan Totten | Secretary | - | $0 | - | - |
| Celine Mahoney | Director | - | $0 | - | - |
| Lesley O'Connell | Director | - | $0 | - | - |
| Nancy Ahearn | Director | - | $0 | - | - |
| Patrick O'Connell | Director | - | $0 | - | - |
| Kaitlyn Sherman | Director | - | $0 | - | - |
| Paul Mahoney | Director | - | $0 | - | - |
| Dr Mark Hodgman | Director | - | $0 | - | - |
| Curt Penney | Director | - | $0 | - | - |
Filing and Contact Details
Filer
- Filer Name
- John FX Mahoney MD Foundation
- EIN
- 87-2245155
- Phone
- 8579390416
- Address
- PO Box 870055, Milton Village, MA 02187
Signing Officer
- Name
- Jon Mahoney
- Title
- Treasurer
- Phone
- 8579390416
- Signed
- 2026-03-06
Preparer
- Firm
- LMA Associates Inc
- Address
- 136 Hickory Drive, Raynham, MA 02767
- Preparer
- Carolyn T Dias
- Phone
- 5088246588
Supplemental Narrative
Additional Explanations
Form 990EZ, Part I, Line 10
“To Fund Neurology Ctr; Donation; Beth Israel Deaconess Milton: 199 Reedsdale Rd, MIlton, MA, 02186; none, 42000.”
Form 990EZ, Part I, Line 10
“To foster medical eduation; Donation; PSP & CBD Foundation: Falling Creek Rd, Bedford, VA, 24523; none, 1000.”
Form 990EZ, Part I, Line 10
“To foster medical education; Donation; Tufts Medical Ctr: 800 Washington St, Boston, MA, 02111; none, 1200.”
Form 990EZ, Part I, Line 16
“Program expenses 14765.”
Form 990EZ, Part I, Line 16
“Website & Internet 1434.”
Form 990EZ, Part I, Line 16
“Admin & General Expenses 415.”
Form 990EZ, Part I, Line 16
“Filing fees 72.”
Form 990EZ, Part II, Line 24
“Prepaid Deposit 2000. 2000.”
Raw XML Appendix215 raw XML fields
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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|---|---|---|
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| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 1793 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 400 |
| IRS990EZ/FiledScheduleAInd | 0 | true |
| IRS990EZ/ForeignFinancialAccountInd | 0 | false |
| IRS990EZ/ForeignOfficeInd | 0 | false |
| IRS990EZ/Form1120PolFiledInd | 0 | false |
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| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 8341 |
| IRS990EZ/FundraisingGrossIncomeAmt | 0 | 0 |
| IRS990EZ/GainOrLossFromSaleOfAssetsAmt | 0 | 0 |
| IRS990EZ/GrantsAndSimilarAmountsPaidAmt | 0 | 44200 |
| IRS990EZ/GrossProfitLossSlsOfInvntryAmt | 0 | 0 |
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| IRS990EZ/GrossReceiptsForPublicUseAmt | 0 | 0 |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
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| IRS990EZ/InvestmentIncomeAmt | 0 | 0 |
| IRS990EZ/LobbyingActivitiesInd | 0 | false |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | false |
| IRS990EZ/MembershipDuesAmt | 0 | 0 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 6548 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 8341 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 6548 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 8341 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
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| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 3 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 4 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 5 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 6 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 7 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 8 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 9 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 10 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Jon Mahoney |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Darryl Elliot |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Dan Totten |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 3 | Celine Mahoney |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 4 | Lesley O'Connell |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 5 | Nancy Ahearn |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 6 | Patrick O'Connell |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 7 | Kaitlyn Sherman |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 8 | Paul Mahoney |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 9 | Dr Mark Hodgman |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 10 | Curt Penney |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | Treasurer |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Secretary |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 3 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 4 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 5 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 6 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 7 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 8 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 9 | Director |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 10 | Director |
| IRS990EZ/OperateHospitalInd | 0 | false |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | false |
| IRS990EZ/OrganizationHadUBIInd | 0 | false |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 2000 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 2000 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 16686 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | false |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | TO PRESERVE AND FURTHER THE LEGACY OF DR MAHONEYS COMMITMENT AND CONTRIBUTIONS TO NEUROLOGY, HIS INSATISABLE CURISITY AND TIRELESS DEDICATION TO COMPASSIONATE CARGIVING AND HELPING OTHERS BY FORESTING AND DRIVING SOLUTIONS IN MEDICINE AND EDUCATION |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | Donation Neurology Center to fund developmentresearch and capital projects |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 61286 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990EZ/SchoolOperatingInd | 0 | false |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 0 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990EZ/SubjectToProxyTaxInd | 0 | false |
| IRS990EZ/TanningServicesProvidedInd | 0 | false |
| IRS990EZ/TotalExpensesAmt | 0 | 61286 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 61286 |
| IRS990EZ/TotalRevenueAmt | 0 | 63079 |
| IRS990EZ/TransactionWithControlEntInd | 0 | false |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | N/A |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 63079 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 33860 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 82037 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 178976 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GrossReceiptsNonUnrltBusGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.00000 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.00000 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0 |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 178976 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/TaxRevLeviedOrgnztnlBnft509Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 63079 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 33860 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 82037 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 178976 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 63079 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 33860 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 82037 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 178976 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | To Fund Neurology Ctr; Donation; Beth Israel Deaconess Milton: 199 Reedsdale Rd, MIlton, MA, 02186; none, 42000. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | To foster medical eduation; Donation; PSP & CBD Foundation: Falling Creek Rd, Bedford, VA, 24523; none, 1000. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | To foster medical education; Donation; Tufts Medical Ctr: 800 Washington St, Boston, MA, 02111; none, 1200. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | Program expenses 14765. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | Website & Internet 1434. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | Admin & General Expenses 415. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | Filing fees 72. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | Prepaid Deposit 2000. 2000. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990EZ, Part I, Line 10 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990EZ, Part I, Line 10 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990EZ, Part I, Line 10 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | Form 990EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | Form 990EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | Form 990EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | Form 990EZ, Part I, Line 16 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | Form 990EZ, Part II, Line 24 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Jon Mahoney |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | Treasurer |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8579390416 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-03-06 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | John FX Mahoney MD Foundation |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | JOHN |
| ReturnHeader/Filer/EIN | 0 | 872245155 |
| ReturnHeader/Filer/PhoneNum | 0 | 8579390416 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO Box 870055 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | Milton Village |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02187 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 272318888 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | LMA Associates Inc |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 136 Hickory Drive |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Raynham |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 02767 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 5088246588 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-03-05 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Carolyn T Dias |
| ReturnHeader/ReturnTs | 0 | 2026-03-05T07:31:38-08:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |
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