Our Physicians

All professionals at Westchester Endoscopy maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Jack Rosemarin, MD, FACG
Gastroenterology

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The founder of the Digestive Disease & Nutrition Center of Westchester, LLP. He has had more than 35 years of experience in gastroenterology and nutrition. He has appeared on television and been interviewed for newspaper articles on various digestive and nutritional subjects. He has been on local and regional “Best Doctor” lists. He trained at New York Medical College and completed his Gastroenterology and Nutrition training at Yale University Affiliated Hospitals.

Alfred Roston, MD, FACG
Gastroenterology

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Dr. Alfred Roston graduated from The University of Pennsylvania and The New York University School of Medicine. He completed his Internship and Residency at The Mount Sinai Hospital in New York, his fellowship in Gastroenterology at The New York Hospital/Cornell University Medical College, and his Advanced Fellowship in Interventional Therapeutic Endoscopy at Brigham and Women’s Hospital/Harvard Medical School in Boston. He has authored numerous articles and reviews on his research findings and presented results at several scientific meetings. He has also previously directed endoscopy courses at the local/regional level and is a Past President of The New York Society for Gastrointestinal Endoscopy (NYSGE). For his service to the Gastroenterology community, he was awarded Fellowship (NYSGEF) in the Society. He has also served as the Chief of Gastroenterology and as President of the Medical Staff at White Plains Hospital. He is currently managing partner for the Digestive Disease and Nutrition Center of Westchester and founding partner of The New York Endoscopy Center.

In addition to providing general gastroenterology and endoscopic care, Dr. Roston also provides consultative nutritional services.

Charles Noyer, MD, FACP
Gastroenterology

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Dr. Charles Noyer graduated Center of Westchester in 2003, he was previously Director of Endoscopy at Albert Einstein and Montefiore Hospitals. He has published numerous articles on the subjects of gastroenterology and endoscopy. Dr. Noyer is an expert in all gastroenterology disorders but is one of the few doctors in the region doing endoscopic ultrasound, for which he sees patients of other gastroenterologists. His education and training have been at top universities, including Georgetown, Downstate, Mount Sinai Medical Center and Albert Einstein and Jacobi Hospitals.

Benjamin Marano, MD, FACP, FACG, AGAF
Gastroenterology

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Dr. Marano has been in practice in Westchester County, New York, for more than a quarter century. He joined the Digestive Disease & Nutrition Center of Westchester in 2008. He graduated from Georgetown University with a Bachelor of Science. He attended New York Medical College and completed his fellowship in gastroenterology from Saint Vincent’s Hospital in NYC. He is a fellow of the American College of Physicians, the American College of Gastroenterology and the American Gastroenterological Association. Dr. Marano has co-authored many articles on various gastrointestinal topics including, H. Pylori infections and post-bariatric surgery endoscopy. Dr. Marano has served as Medical Staff President at White Plains Hospital. He has also served as Gastroenterology Section Chief at White Plains Hospital.

Robert S. Goldblatt, MD
Gastroenterology

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Gastroenterologist Dr. Robert S. Goldblatt recently joined Digestive Disease and Nutrition Center of Westchester. He has been in gastroenterology practice for 39 years. He trained at Yale New Haven Medical Center and is board certified in gastroenterology and internal medicine. He is an expert in all gastroenterological disorders. He was previously Chief of Gastroenterology at The New York Hospital/United Hospital Medical Center and has been on staff at White Plains Hospital and Greenwich Hospital. He is a member of the AGA, ASGE, and ACP. He has been named to the Westchester’s Top Doctors List for many years.

Rosemarie Arena, MD
Gastroenterology

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Dr. Arena completed her bachelor of science at Villanova University. She then earned her medical degree at Drexel University College of Medicine and completed her internship, internal medicine residency, and gastroenterology fellowship at Drexel University College of Medicine/Hahnemann University Hospital. She served as the chief fellow of her gastroenterology program. During residency and fellowship, she researched various gastrointestinal issues, such as Hepatitis C treatment and gastrointestinal motility. She has contributed several chapters to the updated Netter's gastroenterology collection.

Dr. Ashutosh Kaul MD, FACS
Bariatric Surgery

Dr. Kaul

Dr. Ashutosh Kaul is board certified by the American College of Surgeons. The primary focus of his practice is advanced abdominal laparoscopic surgery with focus in foregut and bariatric surgery.

He was awarded his MBBS degree from L.L.R.M. Medical College, Meerut, India. He completed residencies at Saint Barnabas Medical Center, Livingston, NJ, and Bronx-Lebanon Hospital Center, NY. He is a Fellow of the Royal College of Surgeons, Edinburgh, U.K., and completed a fellowship in minimal access surgery at the Institute for Minimally Invasive Surgery, NY.

He is Professor of Surgery at New York Medical College, Director of Bariatric Surgery at Greenwich Hospital, CT, and Director of Minimally Invasive Surgery at Westchester Medical Center.

An internationally renowned surgeon, he takes on challenging and revisional cases and is on the faculty for many training courses for other surgeons. He has been named to Castle Connolly’s Best Doctors list multiple times.

Dr. Jonathan Giannone MD, FACS
Bariatric Surgery

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Dr. Jonathan Giannone MD, FACS, is a board-certified general surgeon. After earning his medical degree at Rush Medical College in Chicago, Dr. Giannone completed his surgical residency at the University of Illinois-Chicago Metropolitan Group Hospitals. He then did fellowship training in minimally invasive/bariatric surgery at Westchester Medical Center in New York. Dr. Giannone exceeds the rigorous standards to be a fellow of the American College of Surgeons.

As an Assistant Professor of Surgery at New York Medical College, Dr. Giannone actively works in the training of surgical students, residents, and fellows. Dr. Giannone has presented at multiple national surgical conferences and has given presentations on new techniques in laparoscopic and bariatric surgery.