| Baystate Health |
| Baystate Mary Lane |
| Berkshire Health Systems |
| Beth Israel Deaconess Medical Center |
| Beverly Hospital |
| Boston Medical Center |
| Bridgewater Goddard Park Medical Associates |
| Brigham and Women's Hospital |
| Brockton Hospital |
| Cambridge Health Alliance |
| Cape Cod Healthcare/Cape Cod Hospital |
| Caritas Holy Family Hospital and Medical Center |
| Caritas St. Elizabeth's Medical Center |
| Cooley Dickinson Hospital |
| Dana-Farber Cancer Institute |
| Emerson Hospital |
| Fallon Clinic |
| Franklin Medical Center |
| Hallmark Health |
| Harvard Vanguard Medical Associates |
| Holyoke Hospital |
| Jordan Hospital |
| Joslin Diabetes Center |
| Lahey Clinic |
| Lowell General Hospital |
| Marlborough Hospital |
| Massachusetts General Hospital |
| Mercy Medical Center/Sisters of Providence Health System |
| Merrimack Valley Hospitak |
| MetroWest Medical Center |
| Milford Regional Medical Center |
| Mount Auburn Hospital |
| Quincy Medical Center |
| Saint Anne's Hospital |
| Saints Medical Center |
| Salem Hospital/North Shore Medical Center |
| Shaugnessy Kaplan Rehab Hospital/NSMC |
| Shriner Burns Hospital -Boston |
| Southcoast Hospital Group |
| St. Vincents Hospital |
| Sturdy Memorial Hospital, Inc |
| The University of Massachusetts Medical School |
| Tufts - New England Medical Center |
| UMass Memorial Health Care |
| Union Hospital/North Shore Medical Center |
| Winchester Hospital |
| Youville Hospital & Rehabilitation Center |