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 / NY

MICHAEL J O'BRIEN

PHYSICIAN ASSISTANT

Graduated: 2020

NPI: 1922625185

Practice Locations (1)

PHYSICIANS MEDICAL ASSOCIATES NEW YORK PC

42084 STATE HWY 28

MARGARETVILLE, NY 124552820

8455862631

Source: CMS National Downloadable File, September 2026.

MICHAEL O'BRIEN | HealthCareAtlasUSA