Data / Nonprofits / California / Castro Valley / Health care
Health care nonprofits in Castro Valley, CA: 8 registered with the IRS
8 health care nonprofits are registered with the IRS in Castro Valley, CA, 7 of them 501(c)(3) charities; the 3 that report revenue took in $15.6 million. The largest by revenue: George Mark Childrens Fund ($8.6 million), St John Kronstadt Home for Aged Russian Americans ($6.7 million), Eden Medical Staff ($289,324).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| George Mark Childrens Fund | 501(c)(3) | 1997 | $8.6 million | $19 million | 2025-06 |
| St John Kronstadt Home for Aged Russian Americans | 501(c)(3) | 1973 | $6.7 million | $7.1 million | 2025-12 |
| Eden Medical Staff | 501(c)(6) | 2019 | $289,324 | $435,770 | 2024-12 |
| American College of Dentists Nor Cal | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Benevolence Fund for Christian Science Nursing Care | 501(c)(3) | 2012 | $0 | $0 | 2023-12 |
| Hands for Global Health | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Resilient Roots Chiropractic | 501(c)(3) | 2026 | |||
| Tops Club Inc | 501(c)(3) | 2008 | $0 | $0 | 2026-03 |
Other causes in Castro Valley, CA
- Religion-related 42
- Education 32
- Recreation and sports 21
- Arts, culture and humanities 17
- Human services 16
- International, foreign affairs and national security 10
- Public and societal benefit 10
- Philanthropy, voluntarism and grantmaking foundations 8
- Public safety, disaster preparedness and relief 6
- Housing and shelter 6
- Youth development 6
- Environment 6
- Animal-related 5
- Crime and legal-related 5
- Mental health and crisis intervention 4
- Community improvement and capacity building 4
- Mutual and membership benefit 3
Every nonprofit in Castro Valley, 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.