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

ALEXANDER MERSON, MD

INTERNAL MEDICINE

Graduated: 1976

Also: HEMATOLOGY/ONCOLOGY

Offers telehealth

NPI: 1194755983

Practice Locations (1)

MAG MEDICAL, PC

2379 65TH ST

BROOKLYN, NY 112044045

7183750392

Source: CMS National Downloadable File, September 2026.