Dr. Greenwald is the director of clinical gastroenterology and endoscopy at Mount Sinai Hospital in New York City. He is also a professor of clinical medicine at the Albert Einstein College of Medicine in the Bronx, New York, having recently completed a term as a medical director of the advanced endoscopy center at the school. Dr. Greenwald served as the fellowship program director in gastroenterology at Montefiore Medical Center/Albert Einstein College of Medicine in the Bronx, New York for nearly two decades, and he was an associate division director of the Gastroenterology Department at the Montefiore Medical Center in the Bronx, New York.
Dr. Greenwald has a BA degree from Wesleyan University and an MD from the Albert Einstein College of Medicine. He completed a residency in internal medicine and a fellowship in gastroenterology at Columbia Presbyterian Medical Center in New York.
Dr. Greenwald is a past president of the New York Society for Gastrointestinal Endoscopy, and he currently serves as the organization’s education director. Dr. Greenwald is a member of the Board of Trustees of the American College of Gastroenterology, having previously served as the chair of its Board of Governors. He has been active in numerous ASGE committees, including being the chair of ASGE’s Public and Member Outreach Committee. Dr. Greenwald was honored with ASGE’s Master Endoscopist Award in 2006. He is a member of the GIQuIC (GI Quality Improvement Consortium) board, he has served on the steering committee of the National Colorectal Cancer Roundtable (NCCRT) and he currently serves as the co-chair of NCCRT’s Public Relations and Social Media Committee. In addition, Dr. Greenwald is the co-chair of the Quality Subcommittee for New York’s Citywide Colorectal Cancer Control Coalition (C5). Finally, it is worth noting that he served as the chair of the Subcommittee on GI Endoscopy for the American Society for Testing and Materials (ASTM) for many years.
Dr. Greenwald’s interests in endoscopy include new technology, reprocessing and infection control in endoscopy, training, quality in endoscopy, sedation, patient preparation, GERD, colon cancer screening and prevention and capsule endoscopy.