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Andrew Duffy

Associate Professor of Surgery (Bariatric, Minimally Invasive); Associate Surgical Chief, Digestive Health; Medical Director, Yale New Haven Health System Hernia Program


Andrew Duffy, MD, is a Board Certified General Surgeon and is fellowship-trained in minimal access surgery. He is the Associate Surgical Chief of the Digestive Health Service line and the Medical Director of the Hernia Center for Yale-New Haven Health System. He offers minimally invasive surgery of the abdomen and GI tract, including laparoscopic and robotic techniques.

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 related to hernias or with their stomach, intestines, gallbladder, or other abdominal organs. He specializes in all type of primary and recurrent abdominal wall. He has extensive experience at surgically treating hernia surgery-related complications, including mesh problems.

He also offers minimally invasive techniques for correcting hiatal hernias, GERD, acid reflux, paraesophageal hernias, complications of prior stomach and hiatal hernia surgery, achalasia and other swallowing disorders.

He also specializes in laparoscopic and robotic procedures for obesity, including gastric bypass, sleeve gastrectomy, adjustable gastric banding and revision of prior bariatric surgery.

He specializes in laparoscopic gastrointestinal surgery; laparoscopic bariatric surgery for morbid obesity; laparoscopic gastric bypass surgery; laparoscopic adjustable gastric banding; laparoscopic sleeve gastrectomy; revisional bariatric surgery; laparoscopic surgery for reflux and achalasia; laparoscopic Nissen, laparoscopic Heller myotomy; laparoscopic splenectomy; laparoscopic paraesophageal hernia repair; laparoscopic repair of abdominal-wall hernias; laparoscopic repair of inguinal hernias; gall bladder; gall stones; cholecystectomy; gall stone pancreatitis; Gastroesophageal Reflux Disease (GERD); gastroparesis. Robotic surgery

Education & Training

  • Clinical Fellow
    Weill Medical College of Cornell University (2004)
  • Chief Resident
    University of Massachusetts Medical School (2003)
  • Resident
    University of Massachusetts Medical School (2002)
  • MD
    University of Massachusetts Medical School (1996)
  • BS
    Boston College (1992)

Honors & Recognition

AwardAwarding OrganizationDate
New York Magazine Best Doctors 2012, New York Magazine2017
Connecticut Magazine Top Docs 2017, Connecticut Magazine2017
Connecticut Magazine Top Docs 2016Connecticut Magazine2016
Connecticut Magazine Top Docs 2015Connecticut Magazine2015

Departments & Organizations