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