Fourth of July Hours Update: Most hospital-based locations are open on 7/4. Most outpatient locations are closed. Read more for a complete list of holiday hours. If you have any questions, please call 1-800-258-4674. Happy Fourth of July!

| Eastern Region | |
| MRI: | Hours of Operation | 
| Brighton | (Closed) | 
| Dedham | (Closed) | 
| Mass Bay | (Closed) | 
| Winchester | (Closed) | 
| Weymouth | (Closed) | 
| Tufts | 8AM – 2PM (outpatient) | 
| 24 Hours (inpatient) | |
| Lowell Drum Hill | (Closed) | 
| Lowell General | 7:30AM – 6PM | 
| Saints Medical | 7:30AM – 6PM | 
| Portsmouth | (Closed) | 
| Central Region | |
| MRI: | Hours of Operation | 
| Leominster | (Closed) | 
| Shrewsbury St. Worcester | 7AM – 3PM | 
| UMass Memorial Campus | 7AM – 1130AM | 
| University | 24 Hours | 
| Marlborough | (Closed) | 
| Wellesley | (Closed) | 
| Framingham | (Closed) | 
| Western Region | |
| MRI: | Hours of Operation | 
| Baystate | 6:30AM – 3PM | 
| Franklin | 7:30AM – 3PM | 
| Wing | (Closed) | 
| Maine Region | |
| MRI: | Hours of Operation | 
| Topsham | (Closed) | 
| Auburn | (Closed) | 
| Rumford | (Closed) | 
| Bridgton | (Closed) | 
| Central Maine Medical Center | 7:30 AM – 4PM | 
| (On Call after 4PM) | |
| PET/CT: | |
| Signature | (Closed) | 
| Sturdy | (Closed) | 
| Springfield | 7AM – 3PM | 
| Berkshire | (Closed) | 
| Cooley Dickinson | (Closed) | 
| Burbank | (Closed) | 
| UMASS | (Closed) | 
| CMMC | (Closed) | 
| York Hospital | (Closed) | 
| Topsham | (Closed) | 
| Oncology: | |
| Clark Cancer Center | (Closed) | 
The Surgery Center Shrewsbury (Closed)
