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