| Peninsula Cancer Institute | Peninsula Cancer Institute |
| Health Research of Hampton Roads, Inc. | Health Research of Hampton Roads, Inc. |
| Virginia Oncology Associates | Virginia Oncology Associates |
| Liver Institute of Virginia | Liver Institute of Virginia |
| Mary Immaculate Hospital | Mary Immaculate Hospital |
| Riverside Regional Medical Center | Riverside Regional Medical Center |
| Riverside Neurology Specialists | Riverside Neurology Specialists |
| TPMG Clinical Research | TPMG Clinical Research |
| Sentara Port Warwick | Sentara Port Warwick |
| Surgical Oncology Associates | Surgical Oncology Associates |
| Tidewater Physicians Multispecialty Group Clinical Research | Tidewater Physicians Multispecialty Group Clinical Research |
| Bruton Avenue Family Practice | Bruton Avenue Family Practice |
| Riverside Cardiology Specialists | Riverside Cardiology Specialists |
