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 / DC

SHARON R O'BRIEN, MD

CRITICAL CARE (INTENSIVISTS)

Medical school: GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1991

Also: INTERNAL MEDICINE, PULMONARY DISEASE

NPI: 1477541647

Practice Locations (2)

MEDSTAR MEDICAL GROUP II LLC

3800 RESERVOIR RD NW

WASHINGTON, DC 200072113

2024442000

MGMC LLC

3800 RESERVOIR RD NW

WASHINGTON, DC 200072113

2024443700

Source: CMS National Downloadable File, September 2026.

SHARON O'BRIEN, MD | HealthCareAtlasUSA