Patrick M Chiasson MD, FACS


  • Bariatric Surgery
  • General Surgery

Special Interests

  • Minimally Invasive Surgery
  • Surgical Management of Morbid Obesity
  • Gastroesophageal Junction Diseases
  • Colorectal Disease
  • Advanced Laparoscopic Surgery
  • Hernia Surgery

Patrick M Chiasson, MD

Patrick Chiasson, MD, FACS established the Surgical Weight Loss Program at Northwest Medical Center in Tucson, AZ in 2002. Dr. Chiasson migrated to Tucson, from Canada and received his medical education at McGill University, a Master’s degree from the Institute for the History of Medicine at Johns Hopkins University, and his general surgical training at Dalhousie University. He then completed his sub-specialty training in advanced laparoscopic surgery at the University of Toronto’s highly regarded Center for Minimally Invasive Surgery. He has numerous publications to his credit that address such issues as Minimally Invasive Surgery techniques and outcomes, Health Policy, Medical Ethics and Health Law. His particular surgical interests include the application of advanced laparoscopic and endoluminal techniques to manage colorectal diseases, solid organ diseases, and conditions involving the esophagus and stomach including the surgical management of morbid obesity.

Appointments: 520.219.8690