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

ALISON THERESA O'BRIEN, MD

FAMILY PRACTICE

Medical school: PERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA

Graduated: 2000

Offers telehealth

NPI: 1427042571

Practice Locations (2)

MARY IMOGENE BASSETT HOSPITAL

1 ATWELL RD

COOPERSTOWN, NY 133261301

6075473480

MARY IMOGENE BASSETT HOSPITAL

460 ANDES RD

DELHI, NY 137537407

6077460300

Source: CMS National Downloadable File, September 2026.

ALISON O'BRIEN, MD | HealthCareAtlasUSA