Massachusetts General Medical Group offers comprehensive adult primary care services, including an on-site lab.

Adult Primary Care/Internal Medicine

The internal medicine physicians and nurse practitioners at Massachusetts General Medical Group (MGMG) work with patients to coordinate all their health care needs, from routine physical exams to the diagnosis and treatment of complex medical problems and referrals to specialists. Our primary care providers also provide information about preventive medicine and wellness programs.


At MGMG, our on-site lab performs blood work and other routine tests, including EKG (electrocardiogram), Monday through Friday. If a primary care provider orders tests, patients can visit the lab by appointment during regular hours. Results are typically available through Mass General Brigham Patient Gateway or by mail within two weeks. If test results show an abnormality, the patient's primary care provider will be notified immediately and will contact the patient by phone.

After-hours Coverage

We provide coverage for our existing patients 24 hours a day, seven days a week. Please call your physician’s office to reach the on-call physician. Patients with medical emergencies should call 911.

Same Day/Urgent Care

At MGMG, we offer our existing patients same day appointments. Whether you are just not feeling well or have an injury, MGMG is staffed with your Primary Care Physician and their colleagues of physicians, nurses and nurse practitioners who are available to help. To schedule a same day appointment, call 617-724-8050.