| 1199SEIU in Belmont, CA | AMERIGROUP in Belmont, CA |
| APS Healthcare in Belmont, CA | Aetna in Belmont, CA |
| Alliance in Belmont, CA | AmeriHealth in Belmont, CA |
| American Behavioral in Belmont, CA | Beech Street in Belmont, CA |
| Behavioral Health Systems in Belmont, CA | BlueCross and/or BlueShield in Belmont, CA |
| CCN in Belmont, CA | CHIPA/College Health in Belmont, CA |
| Cascade Health in Belmont, CA | Ceridian in Belmont, CA |
| ChoiceCare in Belmont, CA | Cigna in Belmont, CA |
| ComPsych in Belmont, CA | Corphealth in Belmont, CA |
| Coventry in Belmont, CA | First Choice Health in Belmont, CA |
| First Health in Belmont, CA | GHI/Group Health Incorporated in Belmont, CA |
| Great-West in Belmont, CA | Guardian in Belmont, CA |
| HFN in Belmont, CA | HIP/Health Plan of New York in Belmont, CA |
| Harvard Pilgrim Health Care in Belmont, CA | Health Net in Belmont, CA |
| Holman Group in Belmont, CA | Horizon Healthcare in Belmont, CA |
| Humana in Belmont, CA | Integrated Health Plan in Belmont, CA |
| Interplan in Belmont, CA | Kaiser in Belmont, CA |
| LifeWise in Belmont, CA | MAMSI in Belmont, CA |
| MHN/Managed Health Network in Belmont, CA | Magellan Behavioral Health in Belmont, CA |
| MagnaCare in Belmont, CA | Medica in Belmont, CA |
| Medicaid in Belmont, CA | Medical Mutual in Belmont, CA |
| Medicare in Belmont, CA | Multiplan in Belmont, CA |
| NCPPO in Belmont, CA | ODS in Belmont, CA |
| Oxford in Belmont, CA | PHCS/Private Health Care Systems in Belmont, CA |
| PPOM in Belmont, CA | PacifiCare in Belmont, CA |
| PacificSource in Belmont, CA | PreferredOne in Belmont, CA |
| Providence in Belmont, CA | Sloans Lake in Belmont, CA |
| TRICARE in Belmont, CA | TriWest0127 in Belmont, CA |
| Tufts in Belmont, CA | UniCare in Belmont, CA |
| Uniform in Belmont, CA | United in Belmont, CA |
| VMC in Belmont, CA | ValueOptions in Belmont, CA |
| WellPoint in Belmont, CA |