John J. DeBarros, MD, FACS, FASMBS

Bariatric Surgeon & Weight Loss Specialist located in Tempe, Glendale, Mesa, Tucson, & Phoenix, AZ



As one of the leading physicians and the medical director at the Weight Loss Institute of Arizona, which has two locations in Tempe, and one each in Phoenix, Glendale, Tucson, and Mesa, Arizona, John J. DeBarros MD, FACS, FASMBS, embraces a team approach to patient care. Specializing in weight loss surgery, Dr. DeBarros strives to help patients not only achieve a healthy weight but maintain their health for the long term.

Dr. DeBarros received his medical degree from the UConn School of Medicine at the University of Connecticut in Farmington, Connecticut, where he also completed a surgical residency. He also completed a fellowship in colorectal surgery at the Cleveland Clinic in Florida. Dr. DeBarros’ professional philosophy is based on a holistic approach, combining surgery, diet, exercise, and education to help patients achieve optimal health.

Dr. DeBarros is certified by the American Osteopathic Board of Surgery and is a certified Lap-Band® System surgeon.

Dr. DeBarros has been named one of Phoenix's top doctors by PHOENIX magazine. In addition to his work at the Weight Loss Institute of Arizona, Dr. DeBarros has also held directorships at the Surgical Hospital of Phoenix, Tempe St. Luke's Hospital, and Iasis Healthcare.

Personal Philosophy

Dr. DeBarros is committed to the health and well-being of his patients through a team approach that includes weight loss surgery, diet, exercise, and educational support. Dr. DeBarros is a firm believer that the goal of weight loss surgery is long-term success, not just surgery. He firmly believes that individualized patient care is of paramount importance.”

Professional Highlights

Dr. DeBarros hasbeen recognized by Phoenix Magazineas a “Top Doctor” in 2010, 2011, 2012, 2013 and 2014..



Certified by the American Board of Surgery Certified LAP-BAND® System Surgeon

Fellowship in Colorectal Surgery

Cleveland Clinic, FL.

Medical Degree and Surgical Residency

University of Connecticut

Distinctions & Memberships

Held Directorship at: Tempe St. Lukes, Iasis Healthcare, Surgical Hospital of Phoenix, American College of Surgeons Fellow, American Society for Metabolic and Bariatric Surgery Member, American College of Surgeons Member, Society of Laparoendoscopic Surgeons Member, Held position as Chief of Surgery, Tempe St Luke’s Hospital, Chief of Bariatrics at Hospital of Phoenix