| Anna Jaques Hospital |
| Baystate Medical Center |
| Brigham and Women's Hospital |
| Lahey Clinic Hospital |
| Marlborough Hospital |
| Massachusetts General Hospital |
| Mount Auburn Cambridge IPA |
| Newton-Wellesley Hospital |
| NSMC-Salem Hospital |
| Saints Medical Center, Inc. |
| UMASS Memorial Medical Center University Campus |
| VA Boston Healthcare System |