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