Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Robert S Chang, MD

Individual provider Emergency Medicine Physician · NPI 1760581672

Robert S Chang, MD is an Emergency Medicine in Greenwich, Connecticut. Graduated from State University of New York at Stony Brook, School of Medicine in 1994, 32 years ago. Practices with Greenwich Hospital, a 79-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
32
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5 Perryridge Rd Greenwich Hospital
Greenwich, CT 06830-4608
Phone: (203) 863-3637
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 25MA08016400 (NJ)

Record details

NPI number1760581672
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2006
Last updated in NPPESSeptember 23, 2014
Mailing address14 Cinnamon Ct, Holmdel, NJ 07733-1477

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Greenwich Hospital — 79 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Greenwich