About Us

Dr. Grosman has completed his residency internal medicine and fellowship in Gastroenterology and Hepatology at North Shore University Hospital/Long Island Jewish Hospital. He was exemplary in his training where he served as assistant Chief Resident and Chief Fellow. Dr. Grosman has authored numerous research publications and won prestigious awards in medicine. Aside from the management of liver, pancreatic and gastrointestinal disease, Dr. Grosman specializes in endoscopy, colonoscopy, capsule enteroscopy, advanced endoscopic therapeutic procedures, large colon and gastric polyp resection as well as endoscopic Endoscopic Retrograde Cholangiopancreatography (ERCP).

Hospital affiliations:

  • Mount Sinai Beth Israel Hospital
  • New York Community Hospital
  • KingsBrook Jewish Medical Center

Dr. Brun is a skilled gastroenterologist serving patients in and around Sheepshead Bay and throughout Brooklyn, NY, providing state-of-the-art care for an array of conditions, including irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), gastroesophageal reflux disease (GERD), chronic abdominal pain, and liver and pancreatic diseases, as well as screening for colon cancer. He is Board-certified in internal medicine, Dr. Brun is dedicated to providing each patient with individualized attention and care based on every person’s unique medical needs.

After earning his medical degree at SUNY Downstate Medical School, Dr. Brun completed a residency in internal medicine at Rutgers Robert Wood Johnson University Hospital and a fellowship in gastroenterology at North Shore Long Island Jewish Health System, where he served as chief gastroenterology fellow. Extensively published in peer-reviewed medical journals and textbooks on an array of gastroenterology topics, Dr. Brun has also earned numerous awards and continues to pursue continuing education opportunities to ensure he can offer his patients the most comprehensive array of care options available.

In addition to seeing patients at his private practice, Dr. Brun also maintains a hospital affiliation with Mount Sinai Beth Israel Hospital where he serves as an attending physician. He also maintains an active membership in the American College of Gastroenterology.

Dr. Prateek Chapalamadugu is board certified in Internal Medicine. He is currently a member of the American College of Gastroenterology and American Gastroenterological Association. Dr. Chapalamadugu was born in Florida and earned a Bachelor of Science degree in Biology from the University of Miami in 2004. He also obtained a Masters in Applied Physiology as medical degree from Rosalind Franklin University of Medicine and Sciences in North Chicago, Illinois. He completed his internal medical residency and Gastroenterology fellowship training from Winthrop Hospital in Mineola, New York.

Dr. Chapalamadugu specializes in the diagnosis, treatment, and management of various gastrointestinal disorders including diseases of the esophagus, stomach, small and large intestines, liver, gall bladder, and pancreas. He has expertise in various endoscopic procedures, such as upper GI endoscopy (EGD), colonoscopy, flexible sigmoidoscopy, and capsule endoscopy. Dr. Chapalamadugu firmly believes in compassionate and patient focused care where the patient and the physician work together to achieve quality healthcare.

His interests include photography as well as playing soccer, listening to music, and spending time with his family.

Dr. Nancy Chen is a renowned internist and gastroenterologist. Dr. Chen received her medical degree from the Rosalind Franklin University of Medicine and Science. She completed her residency in internal medicine and a fellowship in gastroenterology at Rutgers, the State University of New Jersey. Dr. Chen brings extensive experience to her role at Triborough GI. She is skilled in her medical domain and welcomes patients for the treatment of a range of common and specialized conditions, including colonic polyps, diarrhea, ulcerative colitis, hemorrhoids, and gallstones. She is certified in gastroenterology by the American Board of Internal Medicine and is a member of the American Gastroenterological Association, the American College of Gastroenterology, and the American College of Physicians. She is fluent in English, Chinese (Mandarin), and Chinese (Shanghainese). Dr. Chen encourages open communication with her patients which allows her to guide them through their treatment as an active participant in their own wellbeing. She is enthusiastic and detail-oriented in conducting patient needs assessments, as well as in providing accurate results and recommendations for the development of appropriate patient treatment.

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