Data / Nonprofits / California / Fairfield / Health care
Health care nonprofits in Fairfield, CA: 9 registered with the IRS
9 health care nonprofits are registered with the IRS in Fairfield, CA, 9 of them 501(c)(3) charities; the 4 that report revenue took in $975.2 million. The largest by revenue: Northbay Healthcare Group ($850.1 million), Northbay Healthcare Corporation ($110.6 million), Northbay Healthcare Foundation ($8 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Northbay Healthcare Group | 501(c)(3) | 1961 | $850.1 million | $889.5 million | 2024-12 |
| Northbay Healthcare Corporation | 501(c)(3) | 1987 | $110.6 million | $71.3 million | 2024-12 |
| Northbay Healthcare Foundation | 501(c)(3) | 1986 | $8 million | $15 million | 2024-12 |
| Northbay Health Advantage | 501(c)(3) | 1978 | $6.5 million | $71.9 million | 2024-12 |
| Food and Health Innovation Foundati On | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| La Leche League of the United States of America | 501(c)(3) | 2017 | $0 | $0 | 2026-03 |
| Macklin and Associates Inc | 501(c)(3) | 2024 | |||
| Mobile Health Strategies Guatemala | 501(c)(3) | 2025 | |||
| Northbay Health Medical Foundation | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
Other causes in Fairfield, CA
- Religion-related 58
- Human services 51
- Education 44
- Recreation and sports 28
- Arts, culture and humanities 19
- Youth development 19
- Housing and shelter 18
- Community improvement and capacity building 17
- Philanthropy, voluntarism and grantmaking foundations 13
- Public and societal benefit 12
- Animal-related 9
- Employment 7
- International, foreign affairs and national security 6
- Mental health and crisis intervention 6
- Food, agriculture and nutrition 5
- Crime and legal-related 4
- Civil rights, social action and advocacy 4
- Public safety, disaster preparedness and relief 3
- Environment 3
Every nonprofit in Fairfield, CA · Health care nonprofits across the state · Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.