| BLUE HILL MEMORIAL HOSPITAL | CAH | Mansfield | 2023-10-01 |
| CHARLES A. DEAN MEMORIAL HOSPITAL | CAH | Mansfield | 2023-10-01 |
| Lincoln Hospital | CAH | Mansfield | 2023-10-01 |
| PENOBSCOT VALLEY HOSPITAL | CAH | Mansfield | 2023-10-01 |
| MOUNT DESERT ISLAND HOSPITAL | CAH | Mansfield | 2023-04-01 |
| Calais Community Hospital | CAH | Mansfield | 2023-04-01 |
| RUMFORD HOSPITAL | CAH | Mansfield | 2023-07-01 |
| MRH Corp. DBA Northern Light Mayo Hospital | CAH | Mansfield | 2023-10-01 |
| BRIDGTON HOSPITAL | CAH | Mansfield | 2023-07-01 |
| DOWN EAST COMMUNITY HOSPITAL | CAH | Mansfield | 2023-04-01 |
| MAINEHEALTH WALDO HOSPITAL | CAH | Mansfield | 2023-10-01 |
| Sebasticook Valley Health | CAH | Mansfield | 2025-07-01 |
| REDINGTON-FAIRVIEW GENERAL HOSPITAL | CAH | Mansfield | 2023-07-01 |
| MAINEHEALTH STEPHENS HOSPITAL | CAH | Mansfield | 2023-10-01 |
| MaineHealth Franklin Hospital | CAH | Mansfield | 2024-08-20 |
| NORTHERN MAINE MEDICAL CENTER | CAH | Mansfield | 2024-12-06 |
| Athol Memorial Hospital | CAH | Mansfield | 2023-04-01 |
| UPPER CONNECTICUT VALLEY HOSPITAL ASSOCIATION | CAH | Mansfield | 2023-04-01 |
| LITTLETON REGIONAL HOSPITAL | CAH | Mansfield | 2023-07-01 |
| WEEKS MEDICAL CENTER | CAH | Mansfield | 2023-10-01 |
| ALICE PECK DAY MEMORIAL HOSPITAL | CAH | Mansfield | 2023-04-01 |
| MaineHealth Memorial Hospital | CAH | Mansfield | 2023-10-01 |
| MONADNOCK COMMUNITY HOSPITAL | CAH | Mansfield | 2023-04-01 |
| ANDROSCOGGIN VALLEY HOSPITAL , Inc. | CAH | Mansfield | 2023-04-01 |
| HUGGINS HOSPITAL | CAH | Mansfield | 2023-10-01 |
| SOLDIERS AND SAILORS MEMORIAL HOSPITAL OF YATES COUNTY | CAH | Mansfield | 2026-01-01 |
| WINDSOR HOSPITAL CORPORATION D/B/A MT. ASCUTNEY HOSPITAL AND HEALTH CENTER | CAH | Mansfield | 2023-10-01 |
| NORTHEASTERN VERMONT REGIONAL HOSPITAL | CAH | Mansfield | 2023-07-01 |
| NORTH COUNTRY HOSPITAL AND HEALTH CENTER INC | CAH | Mansfield | 2023-10-01 |
| Porter Hospital | CAH | Mansfield | 2023-04-01 |
| Community Health Centers - Riverside | CH | Mansfield | 2023-04-01 |
| Community Health Centers - Pearl Street | CH | Mansfield | 2025-07-01 |
| Community Health Centers - Safe Harbor | CH | Mansfield | 2025-07-01 |
| Community Health Centers - Champlain Islands | CH | Mansfield | 2025-07-01 |
| Community Health Centers - South End | CH | Mansfield | 2025-07-01 |
| Community Health Centers - Good Health | CH | Mansfield | 2025-07-01 |
| Community Health Centers - Winooski | CH | Mansfield | 2025-07-01 |
| Community Health Centers - Essex | CH | Mansfield | 2025-07-01 |
| DANIEL DRISCOLL - NEPONSET HEALTH CENTER | CH | Mansfield | 2023-04-01 |
| BUCKSPORT REGIONAL HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| Bucksport Regional Health Center- Ellsworth Site | CH | Mansfield | 2023-07-01 |
| REGIONAL MEDICAL CENTER AT LUBEC | CH | Mansfield | 2023-07-01 |
| BINGHAM AREA HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| DBA WellOne Primary Medical and Dental Care | CH | Mansfield | 2023-04-01 |
| PROVIDENCE COMMUNITY HEALTH CENTERS, INC. | CH | Mansfield | 2023-10-01 |
| Fenway Health, Ansin Building | CH | Mansfield | 2023-04-01 |
| NORTHERN COUNTIES HEALTH CARE, INC. | CH | Mansfield | 2023-07-01 |
| ISLAND POND HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| DANVILLE HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| Hardwick Area Health Center | CH | Mansfield | 2023-07-01 |
| CONCORD HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| ST. JOHNSBURY COMMUNITY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| Northern Express Care Newport | CH | Mansfield | 2023-07-01 |
| BROCKTON NEIGHBORHOOD HEALTH CENTER, INC. | CH | Mansfield | 2023-10-01 |
| BROCKTON NEIGHBORHD HTH CTR Manley Street | CH | Mansfield | 2023-10-01 |
| BNHC at Vicente's | CH | Mansfield | 2023-10-01 |
| BNHC Community Care In Reach | CH | Mansfield | 2023-10-01 |
| SOUTH STREET CLINIC | CH | Mansfield | 2023-04-01 |
| 10 Gove Street | CH | Mansfield | 2023-04-01 |
| Amoskeag Health | CH | Mansfield | 2023-04-01 |
| Amoskeag Health at 184 Tarrytown Road | CH | Mansfield | 2025-01-01 |
| Amoskeag Health at 1245 Elm Street | CH | Mansfield | 2025-01-01 |
| FAMILY HEALTH CENTER OF WORCESTER, INC. | CH | Mansfield | 2023-04-01 |
| COOS COUNTY FAMILY HEALTH SVCS | CH | Mansfield | 2023-10-01 |
| SALEM FAMILY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| ACHS - Littleton | CH | Mansfield | 2023-04-01 |
| ACHS - Whitefield | CH | Mansfield | 2024-07-01 |
| PROVINCETOWN HEALTH CENTER | CH | Mansfield | 2024-01-01 |
| CHC'S OF RUTLAND REGION, INC. | CH | Mansfield | 2023-04-01 |
| OPTIMUS ON BARNUM AVENUE | CH | Mansfield | 2026-01-01 |
| DIMOCK COMMUNITY HEALTH CENTER | CH | Mansfield | 2024-01-01 |
| LYNN COMMUNITY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| LCHC Consolidated Site | CH | Mansfield | 2023-10-01 |
| LAMPREY HEALTH CARE | CH | Mansfield | 2023-10-01 |
| MANET COMMUNITY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| Duffy Health Center | CH | Mansfield | 2023-04-01 |
| THUNDERMIST DENTAL ADMIN WOONSOCKET | CH | Mansfield | 2023-04-01 |
| GREATER NEW BEDFORD COMMUNITY HEALTH CENTER | CH | Mansfield | 2023-04-01 |
| Blackstone Valley Community Health Care | CH | Mansfield | 2023-04-01 |
| Mattapan Community Health Center | CH | Mansfield | 2023-04-01 |
| WOOD RIVER HEALTH SERVICES, INC. | CH | Mansfield | 2023-10-01 |
| WRHS Westerly Site | CH | Mansfield | 2023-10-01 |
| KATAHDIN VALLEY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| DFD RUSSELL MEDICAL CENTER - LEEDS | CH | Mansfield | 2023-04-01 |
| ST. CROIX REGIONAL FAMILY HEALTH CENTER | CH | Mansfield | 2023-10-01 |
| EAST GRAND HEALTH CENTER | CH | Mansfield | 2023-10-01 |
| ST CROIX REGIONAL AT CALAIS | CH | Mansfield | 2023-10-01 |
| Temporary Site- Calais Blue Devil Health | CH | Mansfield | 2023-10-01 |
| Community Health Connections Fitchburg Health Center | CH | Mansfield | 2023-04-01 |
| Richford Health Center | CH | Mansfield | 2023-10-01 |
| BREWER MEDICAL CENTER | CH | Mansfield | 2023-04-01 |
| Health Access Network Lincoln | CH | Mansfield | 2023-10-01 |
| East Bay Family Health Center | CH | Mansfield | 2023-10-01 |
| Greater Seacoast Health | CH | Mansfield | 2023-07-01 |
| OPEN DOOR FAMILY MEDICAL CENTER, INC. | CH | Mansfield | 2026-01-01 |
| Hudson Headwaters Administrative Offices | CH | Mansfield | 2026-01-01 |
| HEALTH FIRST FAMILY CARE CENTER | CH | Mansfield | 2023-04-01 |
| EAGLE LAKE HEALTH CENTER | CH | Mansfield | 2023-04-01 |
| SACOPEE VALLEY HEALTH CENTER | CH | Mansfield | 2023-07-01 |
| EASTPORT HEALTH CARE, INC. | CH | Mansfield | 2023-07-01 |