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