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