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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (7)

The overall average patient rating of Dr. Peter Chang, Gastroenterologist is Excellent. Dr. Chang has been reviewed by 38 patients who have provided 7 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.8
Courteous Staff 4.4
Accurate Diagnosis 4.5
Bedside Manner 4.5
Spends Time with Me 4.5
Follows Up After Visit 4.5

Specialties & Research

  • He has special expertise in 7 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Constipation
  • Hepatitis C
  • Ichthyosis Bullosa of Siemens
  • Inflammatory Bowel Diseases (IBD)
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Education & Awards

Dr. Chang graduated from New York University - Mount Sinai. He has 6 awards.

Castle Connolly Top Doctors: New York Metro Area™ (2014 - 2015)
Patients' Choice 5th Anniversary Award (2012 - 2014)
Patients' Choice Award (2008 - 2014)
Compassionate Doctor Award - 5 Year Honoree (2013)
Compassionate Doctor Recognition (2009 - 2013)
On-Time Doctor Award (2009, 2014)


Dr. Chang has 6 hospital affiliations:

  • Mt Sinai Hospital 
  • Beth Israel Medical Center Petrie Division 


  • Spanish
  • Romanian
  • Chinese
  • Mandarin
  • Cantonese

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Additional Information
Dr. Peter Chang MD is a male Internist, has 15 years of experience and practices in Gastroenterology.
Where does Dr. Peter Chang practice?
Dr. Peter Chang has 1 office location.
Dr. Peter Chang practices Gastroenterology near New York, NY.
See New York Gastroenterologists.