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 MARRA, MD

FAMILY PRACTICE

Graduated: 2010

NPI: 1275997140

Practice Locations (2)

MERCY HOSPITAL OF BUFFALO

565 ABBOTT RD

BUFFALO, NY 142202039

7168267000

PREFERRED PHYSICIAN CARE PC

5844 SOUTHWESTERN BLVD, SUITE 500

HAMBURG, NY 140753684

7166465500

Source: CMS National Downloadable File, September 2026.

GREGORY MARRA, MD | HealthCareAtlasUSA