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