Mariel Hemingway Foundation Inc
Nonprofit profile at a glance
- EIN
- 871819876
- IRS 990-EZ coverage
- 2025–2025
- Forms available
- Form 990 2024, Form 990-EZ 2025
- Location
- Westlake Village, CA, USA
- Phone
- 8052944747
- Rating confidence
- Limited
- Sector
- Public, Society Benefit N.E.C.
Reported finances
- Revenue
- $0
- Expenses
- $0
- Assets
- $767
- Liabilities
- $0
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Amounts in USD.
Leadership & pay
1 person listed
Executive titles in this filing
- MARIEL HEMINGWAY (CHIEF EXECUTIVE OFFICER)
People named in this filing
- MARIEL HEMINGWAY (CHIEF EXECUTIVE OFFICER)
Selected names, not a complete roster or a statement of current roles. Open leadership details for the complete filed list.
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.
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.
Operating model
- Revenue model
- No positive adjusted resources. The filing reports no positive adjusted operating resources.
- Distribution model
- No current program activity. The filing reports no program spending for the current year.
The verdict
- The available evidence is not sufficient to produce an overall rating for this filing. This is not a warning sign.
Rating breakdown
- Financial Efficiency: NotEnoughData
- Transparency & Controls: 65
- Sustainability: 8
- Growth: 20
Detailed rating inputs
Financial Efficiency
- Mission deployment rate: Limited
- Program expense ratio: Limited
Transparency & Controls
- Consistency checks: 80%; rating input score 80; 2nd percentile among comparable filings
- Major donor itemization: Limited
Sustainability
- Operating margin: Limited
- Total-asset coverage ratio: Limited
- Liabilities to assets ratio: 0; rating input score 66; 66th percentile among comparable filings
- Officer compensation ratio: Limited
Growth
- Program expense growth: Limited
- Revenue growth: Limited
- Asset growth: 200% per year; rating input score 100; 100th percentile among comparable filings
Details
- Where the money goes: Financial trends and filed revenue, expense, asset, and liability detail
- Governance: Filed governance answers
- Accomplishments: 1 filed program accomplishment
- Leadership: top reported pay $0 · 1 people listed
- Consistency: 8 of 9 current checks pass · 1 finding to review
- Schedules: 2 filed schedules
- Contacts: How to reach this organization
- Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
- People: Everyone the filings name, and which of them the filings identify by more than a name.
Key Signals
Signals prioritize questions for review. They are not findings of misconduct.
- Moderate — Transparency & Controls: Series filing activity did not reconcile in the filed values.