Bronx, New York

About this practice:

Riverdale Gastroenterology and Liver Diseases
3765 Riverdale Avenue
Suite 7
Bronx, NY 10463
Tel: 718-569-7934

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Michael S. Ader, MD

Dr. Ader graduated from Columbia University with a Bachelor of Arts in 1976. He then attended the Albert Einstein College of Medicine and completed his internship and residency in Internal Medicine at Montefiore Medical Center. He went on to receive his training in Gastroenterology at the New York VA Hospital. He worked as a consultant gastroenterologist at the FDR VA Hospital in Montrose, NY, and entered private practice with Riverdale Gastroenterology and Liver Diseases in 1986.

Dr. Ader is certified by the American Board of Internal Medicine and the subspecialty Board of Gastroenterology. He completed an added qualification in Geriatrics in 1990. Dr. Ader is on the clinical faculty of the Albert Einstein College of Medicine. He is a member of the American Gastroenterological Association, the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, the American College of Physicians, the American Medical Association, the Medical Society of the State of NY and the Bronx County Medical Society.

Dr. Ader is on the staff of Montefiore Medical Center, St. Barnabas Hospital, the Allen Pavilion of Columbia Presbyterian Medical Center, St. Barnabas Hospital, the Community Hospital at Dobbs Ferry and Our Lady of Mercy Medical Center.

Dr. Ader is married with 3 children.

Isadore P. Gutwein, MD

Dr. Gutwein was born in Germany in 1947 and came to the U.S.A. at the age of three. He graduated from New York University with honors in biology and was elected to Phi Beta Kappa for his academic excellence. He attended the Albert Einstein College of Medicine and completed his internship and residency in Internal Medicine at Montefiore Medical Center. He went on to receive his training in Gastroenterology at St. Luke’s-Roosevelt Medical Center in Manhattan. Dr. Gutwein completed his training in 1978 and began his practice of gastroenterology in the Riverdale section of the Bronx. Dr. Robert Sable joined Dr. Gutwein in 1981 forming Riverdale Gastroenterology and Liver Diseases.

Dr. Gutwein is certified by the American Board of Internal Medicine and the subspecialty Board of Gastroenterology. He is a Clinical Assistant Professor of Medicine at the Albert Einstein College of Medicine. He is a member of the American Gastroenterological Association, the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, the American Medical Association, the American College of Physicians, the New York Society for Gastrointestinal Endoscopy, the Medical Society of the State of NY and the Bronx County Medical Society.

Dr. Gutwein is on the staff of Montefiore Medical Center, St. Barnabas Hospital, and Our Lady of Mercy Medical Center.

Dr. Gutwein enjoys teaching medicine to his residents, fellows, and his sons who are also physicians. He enjoys his hobbies of building electronic circuits and woodworking.