| ADMAR | Admar |
| AHCC | Affordable Health Care Co |
| AETNA | |
| Blue Cross PPO | |
| CAPP CARE | |
| CCN | Community Care Network |
| Cigna PPO/EPO | |
| CHAMUS | Champus/Foundation Health |
| CIGNA | Cigna |
| GWEST | Great West/One Health |
| INTER | Interplan |
| John Muir/Mt. Diablo Health Network | |
| Medicare | |
| Pacific Hlth Care Med Grp | |
| PCHS | Private Health Care Syst |
| PHN | Preferred Health Network |
| Pacificare POS | |
| Presidium/Workers Comp | |
| United Healthcare PPO |
