About Us


Mark J. Coronel, M.D. graduated Magna Cum Laude from Yeshiva University with a Bachelors of Arts degree in Biology in 2000. Subsequently, he received his MD from the Albert Einstein College of Medicine in Bronx, NY. He performed his internship and residency training in Internal Medicine at the Albert Einstein program at the Long Island Jewish Medical Center in New Hyde Park. He completed his Gastroenterology and Hepatology training at the North Shore-LIJ health system including training in Transplant Hepatology at the Montefiore Medical Center. During his last year, He served as Chief Fellow in the program. 

Dr Coronel has been involved for several years in clinical research in Gastroenterology and Hepatology. He has authored several abstracts, posters and oral presentations given at national meetings. In 2006, he was honored by the American College of Gastroenterology with the Governors Award for Excellence in Clinical Research and Best Scientific Paper. In 2010, He was invited to the Curatio National Inflammatory Bowel Disease mentorship program.

Dr. Coronel is an Attending Physician at Peconic Bay Medical Center where he currently serves as the Director of Endoscopy for the hospital. He is also actively involved in the teaching of medical students, interns and residents in Family Medicine and Surgery. 

Mark holds professional membership in several national societies including the American College of Gastroenterology, American Society of Gastrointestinal Endoscopy and the American Gastroenterological Association.

Mark’s primary interests include colon cancer screening, pancreatic disease, gastroeesophageal reflux management, Inflammatory Bowel Disease, Biliary tract disease including ERCP, capsule endoscopy, and small bowel enteroscopy.

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