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

GREGORY CLAYTON CONNOLLY, MD

HEMATOLOGY

Medical school: STATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE

Graduated: 2004

Also: INTERNAL MEDICINE

NPI: 1760590756

Practice Locations (4)

UNITED MEMORIAL MEDICAL CENTER

127 N ST

BATAVIA, NY 140201631

UNITED MEMORIAL MEDICAL CENTER

229 SUMMIT ST

BATAVIA, NY 140201645

ROCHESTER GENERAL HOSPITAL

1425 PORTLAND AVE

ROCHESTER, NY 146213001

5859224000

ROCHESTER GENERAL HOSPITAL

1425 PORTLAND AVE

ROCHESTER, NY 146213011

5859224000

Source: CMS National Downloadable File, September 2026.

GREGORY CONNOLLY, MD | HealthCareAtlasUSA