Allison M. Barrett, MD

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Allison M. Barrett, MD
Employed by Penn State Health
General Surgery, Minimally Invasive Bariatric Surgery

Academic Appointments

Director of Bariatric Surgery, Penn State Health Lancaster Medical Center

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About Me

Dr. Allison Barrett is the director of bariatric surgery at Lancaster Medical Center. She specializes in bariatric surgery, foregut surgery and weight management. She is board-certified in general surgery.

Dr. Barrett attended Washington University in St. Louis for undergraduate studies, followed by Boston University School of Medicine, Boston. She completed her internship and residency at New York University in New York City. Dr. Barrett spent an additional year in fellowship training in minimally invasive and bariatric surgery at Cedars Sinai Medical Center, Los Angeles.

She is a fellow of the American College of Surgeons and a member of the American Society of Metabolic and Bariatric Surgery and the Society of American Gastrointestinal and Endoscopic Surgeons. Dr. Barrett’s certifications include basic life support, advanced cardiac life support, fundamentals of laparoscopic surgery and fundamentals of endoscopic surgery.


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Professional Education


Medical School, Boston University School of Medicine (Massachusetts) - 2008


Fellowship, Surgery, Minimally Invasive/Bariatric Cedars-Sinai Medical Center - 2014


Residency, General Surgery New York University Medical Center (New York City) - 2013

Academic Interests

  • Abdominal wall hernias and reconstruction
  • Bariatric surgery
  • Gallbladder surgery
  • Gastroesophageal reflux disease
  • Weight management