Liabilities / Assets
72nd percentile
Tied with the lowest-debt nonprofits in its peer group.
Mariel Hemingway Foundation Inc.
EIN 87-1819876 • 501(c)3 • Westlake Village, CA
Pub. 78 EligibleNTEE W99
Profile
The Mariel Hemingway Foundation is to compassionately help the patients navigate their mental illness by providing the best access to qualified practitioners, treatments, and technologies.
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.00x
Liabilities / Revenue
Score unavailable
Liabilities-to-revenue requires both liabilities and revenue on the latest valid filing.
Net Margin
Score unavailable
Net margin requires both revenue and expenses on the latest valid filing.
Top Officer Pay
89th percentile
Higher top officer pay than 89% of similar nonprofits.
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$767
Up $767 from 2024
Liabilities
Flat$0
Flat from 2024
Net Assets
Up$767
Up $767 from 2024
Revenue
Flat$0
Flat from 2024
Expenses
Flat$0
Flat from 2024
Net Income
Flat$0
Flat from 2024
Trend Graphs
Filings
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
- Assets
- $767
- Liabilities
- $0
- Net assets
- $767
- Revenue
- $0
- Expenses
- $0
- Net income
- $0
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Jan 1, 2025 to Dec 31, 2025
- Signed
- Apr 16, 2026
- Return Version
- 2025v4.0
- Gross Receipts
- $0
Mission and Program Overview
Mission
The Mariel Hemingway Foundation is to compassionately help the patients navigate their mental illness by providing the best access to qualified practitioners, treatments, and technologies.
Program Services
| Description | Grants | Expenses |
|---|---|---|
| The Mariel Hemingway Foundation is to compassionately help the patients navigate their mental illness by providing the best access to qualified practitioners, treatments, and technologies. | $0 | $0 |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| MARIEL HEMINGWAY | Chief Executive Officer | - | $0 | - | - |
Filing and Contact Details
Filer
- Filer Name
- Mariel Hemingway Foundation Inc
- EIN
- 87-1819876
- Phone
- 8052944747
- Address
- 31200 VIA COLINAS STE 200, WESTLAKE VILLAGE, CA 91362
Signing Officer
- Name
- Mariel Hemingway
- Title
- Officer
- Phone
- 8052944747
- Signed
- 2026-04-16
Supplemental Narrative
Additional Explanations
Form 990-EZ, Part III, Line (28-31)
“The organization provides support to individuals navigating mental health challenges by offering guidance, access to resources, referrals to qualified practitioners, and information on available treatment options. Services are intended to help individuals better understand and access appropriate mental health care and support.”
Raw XML Appendix166 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/BooksInCareOfDetail/USAddress/CityNm | 0 | WESTLAKE VILLAGE |
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| IRS990EZ/OtherRevenueTotalAmt | 0 | 0 |
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| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | The Mariel Hemingway Foundation is to compassionately help the patients navigate their mental illness by providing the best access to qualified practitioners, treatments, and technologies. |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 0 |
| IRS990EZ/ProgramServiceRevenueAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | The Mariel Hemingway Foundation is to compassionately help the patients navigate their mental illness by providing the best access to qualified practitioners, treatments, and technologies. |
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| IRS990EZ/SalariesOtherCompEmplBnftAmt | 0 | 0 |
| IRS990EZ/SaleOfAssetsGrossAmt | 0 | 0 |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/SpecialEventsDirectExpensesAmt | 0 | 0 |
| IRS990EZ/SpecialEventsNetIncomeLossAmt | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | CA |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 0 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 0 |
| IRS990EZ/TotalRevenueAmt | 0 | 0 |
| IRS990EZ/TransactionWithControlEntInd | 0 | 0 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
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| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | The organization provides support to individuals navigating mental health challenges by offering guidance, access to resources, referrals to qualified practitioners, and information on available treatment options. |
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| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 0 |
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| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearAmt | 0 | 0 |
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| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 0 |
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| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 0 |
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| IRS990ScheduleA/PrivateFoundation170Ind | 0 | X |
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| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 0 |
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| IRS990ScheduleA/UnrelatedBusinessNetIncm170Grp/TotalAmt | 0 | 0 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | The organization provides support to individuals navigating mental health challenges by offering guidance, access to resources, referrals to qualified practitioners, and information on available treatment options. Services are intended to help individuals better understand and access appropriate mental health care and support. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part III, Line (28-31) |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | MARIEL HEMINGWAY |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | OFFICER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 8052944747 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-04-16 |
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| ReturnHeader/Filer/EIN | 0 | 871819876 |
| ReturnHeader/Filer/PhoneNum | 0 | 8052944747 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 31200 VIA COLINAS STE 200 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | WESTLAKE VILLAGE |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | CA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 91362 |
| ReturnHeader/ReturnTs | 0 | 2026-04-16T13:40:48-07:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2025-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-12-31 |
| ReturnHeader/TaxYr | 0 | 2025 |
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