About Brooklyn Gastroenterologist Dr. Konstantin Peysin

Dr. Konstantin Peysin is a board-certified gastroenterologist, practicing at several of our locations. He is passionate about gastroenterology and his patients making each encounter personal and therapeutic. Dr. Peysin has presented his original research and multiple international conferences and incorporates the newest research into his patient care decisions.

Dr. Peysin completed his bachelor’s degree at Stony Brook University, Stony Brook. He is an alumnus of the New York Institute of Technology, New York College of Osteopathic Medicine, where he earned his medical degree. He followed it up with a residency in internal medicine at Stony Brook University Hospital and a fellowship in gastroenterology at Coney Island Hospital where he was chief fellow. In addition to his gastroenterology board certification he also holds certification from the American Board of Internal Medicine.

He is certified to care for many gastroenterology ailments including:

• Constipation
• Celiac disease
• Stomach ulcers
• Irritable bowel syndrome (IBS)
• Hemorrhoids
• Hepatitis
• Abdominal pain
• H. pylori infections
• Colon polyps
• Colon cancer
• Inflammatory bowel disease (IBD)

He regularly performs:

• Upper Endoscopy
• Esophagus and stomach biopsy
• Small bowel (capsule) endoscopy
• Sigmoidoscopy
• Colonoscopy
• Colon Cancer Screening