HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / MA

KAREN A OBRIEN, MD

HOSPICE/PALLIATIVE CARE

Medical school: WARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY

Graduated: 1989

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1508870957

Practice Locations (4)

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC

243 CHARLES ST, SUITE 1107

BOSTON, MA 021143002

6172735699

THE GENERAL HOSPITAL CORPORATION

55 FRUIT ST

BOSTON, MA 021142621

6177262000

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC

55 FRUIT ST

BOSTON, MA 021142696

6177240287

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC

75 FRANCIS ST

BOSTON, MA 021156110

6177325500

Source: CMS National Downloadable File, September 2026.

KAREN OBRIEN, MD | HealthCareAtlasUSA