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John Morton

Professor of Surgery (Bariatric, Minimally Invasive); Vice-Chair, Quality, Surgery; Medical Director, Bariatric Surgery Yale New Haven Health System, Surgery; System Lead, Surgical Quality, Surgery; Interim Co-Director, Digestive Health Service Line, Surgery; Co-Chair, Perioperative Services, Quality Committee, Surgery

Contact Information


Patient Care Location

Mailing Address

  • Bariatric & Minimally Invasive Surgery

    333 Cedar Street, PO Box 208062

    New Haven, CT 06510

    United States


Dr. John Morton is the System Lead for Surgical Quality and Bariatric Services in the Yale New Haven Health System of 6 hospitals and Vice-Chair for Quality, Division Chief for Bariatric and Minimally Invasive Surgery and Professor in the Department of Surgery at the Yale School of Medicine. He served as Chief of Bariatric and Minimally Invasive Surgery, Clinic Chief for the Bariatric and Metabolic Inter-Disciplinary Clinic and Director of Bariatric and Minimally Invasive Surgery Fellowship at Stanford University School of Medicine from 2003-2019.

Dr. Morton received undergraduate, Masters in Public Health, and Medical Doctor Degrees from Tulane University and a Masters in Health Administration from University of Washington. He was the first surgical resident to receive a Robert Wood Johnson Clinical Scholar Fellowship in the program’s history at University of Washington and also completed an advanced laparoscopic surgery fellowship at University of North Carolina, Chapel Hill. He served on Capitol Hill as Senator Bill Frist’s Health Policy Intern. He is a Diplomate of both the American Board of Surgery and American Board of Obesity Medicine and certified in Medical Quality by the American College of Medical Quality.

He has published over 173 articles and 21 book chapters with over 300 national and international presentations. He led 5 site FDA Pivotal Trials and has received funding from National Institutes of Health and Gordon and Betty Moore Foundation. He has served as editor of five books: Quality in Obesity Treatment, Morbid Obesity: Perioperative Management, The ASMBS Textbook of Bariatric Surgery, 1st and 2nd editions and SAGES Handbook on Quality, Patient Safety and Outcomes. Furthermore, he is Clinical Editor for Bariatric Times (12,000 readership) and serves on 11 editorial boards including Obesity Surgery, Surgery for Obesity and Related Diseases, American College of Surgeons Case Studies in Surgery, and World Journal of Gastroenterology. His research efforts have been recognized by 28 research awards from 5 different surgical societies. As a teacher, Dr. Morton has received 5 teaching awards at Stanford in 8 years including the 2008 Arthur Bloomfield Clinical Teacher of the Year & 2011 Henry J. Kaiser Teaching Award.

Dr. Morton has the unique distinction of having served as Surgical Quality Director for two Top 20 US News & World Report Honor Roll Hospitals. He is the inaugural national Chair of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP), a collaboration for 800 hospitals between the American Society of Metabolic and Bariatric Surgery and the American College of Surgeons. He has overseen 3 national standards, establishment of the clinical registry, and 3 national quality improvement projects within MBSAQIP. From 2014-18, the Stanford Bariatric Surgery program was noted to be Exemplary in five different categories by MBSAQIP.

From 2014-5, he served as elected President of the American Society of Metabolic and Bariatric Surgery (ASMBS) composed of over 4000 members from 52 countries. In 2017, he received the highest honor accorded to a bariatric surgeon with the ASMBS Foundation Award for Outstanding Achievement and in 2019 received the Walter Pories Award. With over 3500 bariatric surgeries performed, he has been recognized as a bariatric surgery leader by Agency for Healthcare Research and Quality, RAND, American College of Surgeons, Who’s Who and America’s Top Surgeons. His clinical skills have been recognized as being named Castle Connolly’s Physician of the Year for Clinical Excellence in 2012. Dr. Morton also founded the first obesity related Political Action Committee, Obesity PAC on behalf of the American Society for Metabolic and Bariatric Surgery and Chair of the National Obesity Collaborative Care Summit for 35 Different Medical Societies.

Education & Training

  • Fellowship, Advanced GI/Laparoscopic Surgery
    University of North Carolina, Chapel Hill (2003)
  • Chief Resident
    Swedish Medical Center (2001)
  • Fellowship, Robert Wood Johnson Clinical Scholar
    University of Washington (1997)
  • MHA
    University of Washington, Health Administration (1997)
  • MD
    Tulane, Medicine (1993)
  • MPH
    Tulane, Public Health (1993)
  • BS
    Tulane, Biology (1988)

Honors & Recognition

AwardAwarding OrganizationDate
Walter Pories AwardObesity Summit 20192019
IFSO Ambassador AwardInternational Federation of Surgery for Obesity2019
ASMBS Lifetime Achievement AwardAmerican Society for Metabolic and Bariatric Surgery2016

Professional Service

American Society for Metabolic and Bariatric SurgeryPresident2014 - 2015
American College of Surgeons, Metabolic and Bariatric Surgery Accreditation and Quality Improvement ProgramChair2014 - Present

Departments & Organizations