HealthCareAtlasUSA

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Doctors / PA

MARGARET M O'BRIEN, MD

ANESTHESIOLOGY

Medical school: ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI

Graduated: 1990

NPI: 1023048964

Practice Locations (3)

UNITED ANESTHESIA SERVICES PC

130 S BRYN MAWR AVE

BRYN MAWR, PA 190103121

6105263000

UNITED ANESTHESIA SERVICES PC

744 W LANCASTER AVE

WAYNE, PA 190822523

6106452000

UNITED ANESTHESIA SERVICES PC

100 E LANCASTER AVE

WYNEWOOD, PA 190963450

6106452000

Source: CMS National Downloadable File, September 2026.

MARGARET O'BRIEN, MD | HealthCareAtlasUSA