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