OUR TEAM

Domenica Barritta, MD

Dr. Domenica Barritta is a Gastroenterologist who cares deeply about all of her patients. Dr. Barritta enjoys making a positive impact on each of her patients lives and looks forward to meeting you soon. Dr. Barritta is affiliated with St. Michael's Medical Center - Columbus Campus in Newark, NJ and can speak English, Spanish, Italian, and Portuguese.

Rami Arrouk, MD

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Gregory S. Lesser, MD, FACG, AGAF

A highly trained gastroenterologist, Dr. Lesser performs colonoscopy and endoscopy procedures and provides accurate and thorough care for patients suffering from digestive issues. He is committed to his patients, helping each individual understand his or her condition and available treatment options, while setting them on a pathway to improved health.  

At present, he is in practice with NJ Gastroenterology in Newark, New Jersey.  He and his colleagues pride themselves on their patient-centered, cost effective approach to digestive health. A current resident of Monmouth County, Dr. Lesser was born in New Jersey and has spent the majority of his life in the Garden State. He earned his Bachelor of Science in Engineering degree & his Master of Science in Public Health degree from Tulane University in 1993 and 1995, respectively.  In 1999, he graduated with his medical degree from the American University of the Caribbean School of Medicine. He then went on to perform his residency in internal medicine and his fellowship in gastroenterology at Cooper University Hospital in Camden, New Jersey in 2002 and 2005, respectively.  For two decades, Dr. Lesser has taken impeccable care of a myriad GI patients throughout the area. Dr. Lesser is board-certified in gastroenterology by the American Board of Internal Medicine, a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world.  Holding fellowship status, he is a Fellow of the American College of Gastroenterology & a Fellow of the American Gastroenterological Association. An accomplished research writer, Dr. Lesser has co-authored several publications on sedation and colonoscopy, in addition to other gastroenterology pertinent topics.  On a more personal note, he speaks both English and Spanish.

Dr. Rami Arrouk  is board certified in Pediatrics and Pediatric Gastroenterology, Hepatology & Nutrition. He completed his pediatric gastroenterology training at Louisiana State University. He previously served in academic positions with the University of North Carolina and University of Augusta, Georgia.

Dr. Arrouk is dedicated to providing high quality care in diagnosing and treating a wide range of gastrointestinal disorders including abdominal pain, feeding difficulties, inflammatory Bowel disease (Crohn’s diseases and Ulcerative colitis), Celiac disease, gastroesophageal reflux disease (GERD), eosinophilic esophagitis (EOE), pancreatic disease, liver disease, failure to thrive, food allergies, Irritable bowel syndrome (IBS), diarrhea, constipation, and functional gastrointestinal disorders.