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 / CT

ROBERT S CHANG, MD

EMERGENCY MEDICINE

Medical school: STATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE

Graduated: 1994

NPI: 1760581672

Practice Locations (3)

GREENWICH HOSPITAL

5 PERRYRIDGE RD

GREENWICH, CT 068304608

2038633000

MGM KETAMINE SERVICES LLC

690 KINDERKAMACK RD, SUITE 103

ORADELL, NJ 076491524

2014833760

MALINA MEDICAL SERVICES PC

7 W 96TH ST, APT 1H

NEW YORK, NY 100256514

2014833760

Source: CMS National Downloadable File, September 2026.