- 21st Century Health & Benefits Inc. (PHCS)
- Aetna
- Affinity
- Amerigroup (Previously known as Careplus)
- Anthem BCBS (CT,NH,ME)
- Atlantis Health Plan (O&P only)
- BCBS of Western NY
- Connecticare
- Devon
- Emblem GHI
- Emblem HIP
- Empire BCBS (O&P only)
- Fidelis Care New York
- First Managed Care Option
- GuildNet (O&P only)
- Health Plus
- HealthCare Partners
- Healthfirst
- Humana
- Iron Workers Local
- Island Group Administrations
- Local 1199 National Benefit Fund (O&P only)
- Local 239/Local 138 Welfare Fund
- Local 282
- Local 338
- Local 42 Carpenters
- Local 707 Road Carriers
- Local 804 Welfare Fund
- Local 825 Welfare Trust Fund
- MagnaCare
- MetroPlus
- MultiPlan
- Neighborhood Health Plan
- Perfect Health Insurance
- Procura Management
- Qualcare
- Tech Health
- The Guardian Life Insurance Company of America
- Touchstone Health
- USA Management Care Organization
- Vytra
- VNS (O&P only)
- Well Choice (Medicare)
