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