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 L COWAN, MD

OPHTHALMOLOGY

Medical school: GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1988

NPI: 1275640716

Practice Locations (1)

SIGHT MEDICAL DOCTORS PLLC

4277 HEMPSTEAD TPKE, SUITE 109

BETHPAGE, NY 117145706

6312658780

Source: CMS National Downloadable File, September 2026.

GREGORY COWAN, MD | HealthCareAtlasUSA