Dr. Alexander Perelman, DO Gastroenterologist Doctor

About Gastroenterologist Doctor

Dr. Alexander Perelman is board-certified in Internal Medicine, and board-certified for Gastroenterology. He earned his medical degree from the New York College of Osteopathic Medicine graduating in the top 15 percent of his class. Dr. Perelman then completed residency in Internal Medicine at Yale-New Haven Hospital/Yale School of Medicine, followed by fellowship in Gastroenterology and Hepatology at University of Connecticut Health Center/University of Connecticut School of Medicine. Dr. Perelman focuses on esophageal disease, inflammatory bowel disease, colon cancer screening and prevention, irritable bowel syndrome, and liver disease (cirrhosis, fatty liver/NASH). He has a particular interest in diagnosis and management of gastroesophageal reflux, dysphagia, eosinophilic esophagitis and Barrett’s esophagus.

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Education and background


  • Gastroenterologist

Practice names

  • Vanguard Gastroenterology, LLP

Hospital affiliations

  • NYU Langone Health

Board certifications

  • American Board of Internal Medicine
  • Gastroenterology (Internal Medicine)

Education and training

  • Medical School – New York Institute of Technology, New York College of Osteopathic Medicine, Doctor of Osteopathic Medicine
  • University of Connecticut, Fellowship in Gastroenterology and Hepatology
  • Yale-New Haven Hospital, Residency in Internal Medicine

Languages spoken

  • English
  • Russian

Provider’s gender


Total Patient reviews 248 

All reviews have been submitted by patients after seeing the provider.

Overall rating 4.98

Wait time 4.89

Bedside manner 5.00