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

MARY OBRIEN, PA

PHYSICIAN ASSISTANT

Graduated: 1995

NPI: 1699969295

Practice Locations (1)

ST JAMES HOSPITAL

7309 SENECA RD N

HORNELL, NY 148439691

Source: CMS National Downloadable File, September 2026.

MARY OBRIEN, PA | HealthCareAtlasUSA