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