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 / MA

JOHN J TSAY, MD

INTERNAL MEDICINE

Graduated: 2005

NPI: 1164632691

Practice Locations (2)

ATRIUS HEALTH INC

133 BROOKLINE AVE

BOSTON, MA 022153904

6174211000

HEBREW REHABILITATION CENTER

100 CENTRE ST

BROOKLINE, MA 024462805

6173638010

Source: CMS National Downloadable File, September 2026.