| MA | Massachusetts Health Policy Commission | Mass General Brigham; CVS | Yes CMIR_INITIATED | 2025-06-06 | Agency page |
| MA | Massachusetts Health Policy Commission | Dana-Farber Cancer Institute; Beth Israel Deaconess Medical Center; Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center, Inc. | Yes CMIR_INITIATED | 2023-10-24 | Agency page |
| MA | Massachusetts Health Policy Commission | CareGroup; Lahey Health System; Seacoast Regional Health Systems; Beth Israel Deaconess Care Organization; Mount Auburn Cambridge Independent Practice Association | Yes CMIR_INITIATED | 2017-07-13 | Agency page |
| MA | Massachusetts Health Policy Commission | Partners HealthCare System; Foundation of the Massachusetts Eye and Ear Infirmary | Yes CMIR_INITIATED | 2017-04-03 | Agency page |
| MA | Massachusetts Health Policy Commission | Beth Israel Deaconess Medical Center; Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center; MetroWest Medical Center | Yes CMIR_INITIATED | 2016-01-14 | Agency page |
| MA | Massachusetts Health Policy Commission | MetroWest Medical Center; Beth Israel Deaconess Care Organization | Yes CMIR_INITIATED | 2015-10-30 | Agency page |
| MA | Massachusetts Health Policy Commission | Beth Israel Deaconess Care Organization; New England Baptist Clinical Integration Organization; New England Baptist Hospital | Yes CMIR_INITIATED | 2015-10-02 | Agency page |
| MA | Massachusetts Health Policy Commission | Partners Healthcare System, Inc - Hallmark Health Corporation; Hallmark Health Corporation-Partners Healthcare System, Inc. | Yes CMIR_INITIATED | 2013-11-12 | Agency page |
| MA | Massachusetts Health Policy Commission | Lahey Health Systems, Inc - Winchester Hospital; Winchester Hospital - Lahey Health System, Inc. | Yes CMIR_INITIATED | 2013-10-30 | Agency page |
| MA | Massachusetts Health Policy Commission | Harbor Medical Associates - Partners Healthcare System, Inc.; Partners Healthcare System, Inc - Harbor Medical Associates | Yes CMIR_INITIATED | 2013-10-24 | Agency page |
| MA | Massachusetts Health Policy Commission | Partners HealthCare System, Inc.; South Shore Hospital | Yes CMIR_INITIATED | 2013-04-22 | Agency page |