Your Upper East Side Gastroenterologists

Dr. Jennifer Bonheur and Dr. Jaclyn Chesner are board-certified gastroenterologists who are passionate about their work and deeply value the relationships they build with their patients. As female gastroenterologists, they understand the importance of listening, connecting, and caring for the whole person – not just the illness. With advanced training in gastroenterology and therapeutic endoscopy, Dr. Bonheur and Dr. Chesner provide compassionate, individualized care tailored to each patient’s needs. Together with their dedicated staff, they are committed to delivering the highest quality medical care in a professional, comfortable, and truly personalized environment.

Conditions We Treat

Our Procedures