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