Our Surgeons

Bio Profile

Andrew Duffy, MD, FACS

Associate Professor of Surgery (Gastrointestinal)

Director, Bariatric and Metabolic Surgery Yale-New Haven Health System

Andrew Duffy, MD, is a Board Certified General Surgeon and is fellowship-trained in minimal access surgery. He is the Director of Bariatric and Metabolic Surgery for the Yale-New Haven Health System. His goal is to offer the most effective surgery with the least recovery time and post-operative discomfort.

Dr. Duffy is dedicated to helping individuals with acute and chronic issues with their stomach, intestines, colon, gallbladder, or other abdominal organs. He specializes in all type of...

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Saber Ghiassi, MD, MPH, FACS

Assistant Professor of Surgery (Gastrointestinal)

Site Director of Bariatric and Metabolic Surgery at Bridgeport Hospital

Saber Ghiassi, MD, MPH, is a Board Certified Surgeon who specializes in minimally invasive and bariatric surgery. He has extensive experience in treatment of obesity and metabolic syndrome, and he serves as the Site Director for Bariatric Surgery at Bridgeport Hospital. He is dedicated to caring for his patients through a holistic approach to health and well-being.

Dr. Ghiassi completed his general surgery training at the Mount Sinai Hospital in New York City, where he served as the...

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Matthew Owen Hubbard, MD, MS

Assistant Professor of Surgery (Gastrointestinal)

Matthew O. Hubbard, MD, is a Board Certified General Surgeon and is fellowship-trained in Advanced Minimally Invasive and Bariatric Surgery. Dr. Hubbard's goal is to provide excellent surgical care for his patients acute and chronic issues related to their stomach, intestines, gallbladder, or other abdominal organs with a focus on minimizing post-operative pain and getting patients back to their daily routines and jobs in as short a time as possible.

Dr. Hubbard specializes in all types of...

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Geoffrey Nadzam, MD, FACS

Assistant Professor of Surgery (Gastrointestinal)

Site Director, Surgical Residency Program

Site Director, Bariatric Surgery Program at St. Raphael's Campus

Geoffrey Nadzam, MD, FACS is fellowship trained in laparoscopic bariatric and robotics procedures. Dr. Nadzam earned his B.A. from Rutgers College in New Brunswick, NJ and earned his M.D. from UMDNJ - New Jersey Medical School in Newark, NJ. He completed a residency in general surgery at Stanford University Medical Center in Palo Alto, California.

Dr. Nadzam previously served as the Director of Robotic Surgery and the Director of Center for Obesity Surgery at the Hospital of St. Raphael. He is...

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Bio Profile

Kurt Eric Roberts, MD, FACS

Associate Professor of Surgery (Gastrointestinal)

Kurt Roberts, MD, FACS, is a Board Certified General Surgeon who is fellowship-trained in minimally invasive surgery. With extensive experience in laparoscopic bariatric surgery and repair of hernias, he is dedicated to helping individuals with morbid obesity reach healthier weights and take care of patients who are suffering from hernias.

He is also dedicated to improving the lives of individuals suffering from acute and chronic gastrointestinal conditions, such as gallstones and biliary...

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Make An Appointment

Yale Bariatric/Gastrointestinal Surgery Program
40 Temple Street, Suite 7B
New Haven, CT 06510

T 203.785.6060
F 203.785.6666

41.30395 -72.928946