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