Data / Nonprofits / New York / Riverhead / Health care
Health care nonprofits in Riverhead, NY: 8 registered with the IRS
8 health care nonprofits are registered with the IRS in Riverhead, NY, 8 of them 501(c)(3) charities; the 5 that report revenue took in $12.6 million. The largest by revenue: Central Suffolk Hospital Foundation ($8.1 million), Riverhead Volunteer Ambulance Corps Inc ($2.2 million), The Flanders Northampton Volunteer Ambulance Company Inc ($1.4 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Central Suffolk Hospital Foundation | 501(c)(3) | 2004 | $8.1 million | $58.8 million | 2024-12 |
| Riverhead Volunteer Ambulance Corps Inc | 501(c)(3) | 1998 | $2.2 million | $2.7 million | 2024-12 |
| The Flanders Northampton Volunteer Ambulance Company Inc | 501(c)(3) | 2014 | $1.4 million | $920,511 | 2024-12 |
| Warrior Ranch Foundation Inc | 501(c)(3) | 2016 | $744,234 | $962,237 | 2025-12 |
| Dr Lazarus Onwuka Medical Foundation Inc | 501(c)(3) | 2022 | $85,000 | $3,000 | 2024-12 |
| Bridge Improving Access To Health Care Inc | 501(c)(3) | 2009 | |||
| Red Knights International Motorcycle Club - Ny Chapter 25 | 501(c)(3) | 2026 | |||
| Upwards Advocacy Inc | 501(c)(3) | 2026 |
Other causes in Riverhead, NY
- Religion-related 16
- Arts, culture and humanities 12
- Human services 12
- Philanthropy, voluntarism and grantmaking foundations 11
- Education 10
- Community improvement and capacity building 9
- Recreation and sports 8
- Animal-related 8
- Youth development 6
- Housing and shelter 4
- Environment 3
Every nonprofit in Riverhead, NY · 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.