| Virginia Cancer Specialists | Virginia Cancer Specialists |
| Inova Schar Cancer Institute | Inova Schar Cancer Institute |
| Fairfax Northern Virginia Hematology Oncology PC | Fairfax Northern Virginia Hematology Oncology PC |
| O & O Alpan, LLC | O & O Alpan, LLC |
| Inova Fair Oaks Hospital | Inova Fair Oaks Hospital |
| Lysosomal and Rare Disorders Research and Treatment Center, Inc. | Lysosomal and Rare Disorders Research and Treatment Center, Inc. |
| Virginia Cancer Specialists-Fairfax | Virginia Cancer Specialists-Fairfax |
| Kaiser Permanente - Fair Oaks Medical Center | Kaiser Permanente - Fair Oaks Medical Center |
| The Retina Group of Washington | The Retina Group of Washington |
| Gastroenterology Associates of Northern Virginia | Gastroenterology Associates of Northern Virginia |
| Re:Cognition Health | Re:Cognition Health |
| Nephrology Associates of Northern Virginia, Inc. | Nephrology Associates of Northern Virginia, Inc. |
| Pediatric Specialists of Virginia | Pediatric Specialists of Virginia |
| George Mason University | George Mason University |
| Fairfax Northern VA Hem-Onc PC | Fairfax Northern VA Hem-Onc PC |
| NEXT Oncology - Virginia Cancer Specialists | NEXT Oncology - Virginia Cancer Specialists |
| Inova Melanoma and Skin Cancer Center | Inova Melanoma and Skin Cancer Center |
| The Cardiovascular Group | The Cardiovascular Group |
| Office of Craig R Dufresne, MD, PC | Office of Craig R Dufresne, MD, PC |
| The Eye Center | The Eye Center |
| US Oncology - Virginia Cancer Specialists, PC | US Oncology - Virginia Cancer Specialists, PC |
| Neurology Center of Fairfax | Neurology Center of Fairfax |
| Inova Fairfax Hospital For Children | Inova Fairfax Hospital For Children |
| TLC Laser Eye Center | TLC Laser Eye Center |
| Lysosomal and Rare Disorders Research and Treatment Center | Lysosomal and Rare Disorders Research and Treatment Center |
| Inova Medical Group | Inova Medical Group |
| Children's National Medical Center | Children's National Medical Center |
| INOVA Pediatric Digestive Diseases Center | INOVA Pediatric Digestive Diseases Center |
| Fairfax Family Practice Centers | Fairfax Family Practice Centers |
| Inova Transplant Center | Inova Transplant Center |
| Sport and Spine Rehab | Sport and Spine Rehab |
| NEXT Virginia, LLC | NEXT Virginia, LLC |
| Inova Schar Cancer Institute Infusion Pharmacy | Inova Schar Cancer Institute Infusion Pharmacy |
| Infectious Disease Consultants | Infectious Disease Consultants |