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