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