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