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