- AARP
- Aetna
- Anthem
- Asian American Medical Group (AAMG)
- Blue Cross
- Blue Shield
- Brown & Toland Medical Group (BTMG)
- Champus
- Cigna
- Delta Health
- Great West
- Guardian
- HealthNet
- Humana
- Medicare
- Multiplan
- Oxford United Healthcare
- Pacific Care
- PHCS
- San Francisco Health Plan (BTMG and AAMG only)
- UMR
- United Healthcare