Dr. Brian Richard Willis, MD

Dr. Brian Willis is a gastroenterologist and internal medicine physician who earned his medical degree from the University of Illinois at Chicago College of Medicine. He completed his residency at Oregon Health & Science University and brings over four decades of clinical experience to his practice. His dual specialty training allows him to provide comprehensive digestive health care while managing complex internal medicine conditions.

Dr. Willis practices at Kaiser Permanente Sunnyside Medical Center in Clackamas, Oregon. He focuses on treating conditions such as obesity, high cholesterol in children and teens, and hyperlipidemia. His procedural expertise includes health risk assessments, substance use disorder screening, and abdominal ultrasound examinations. Patients have given him an average rating of 2.5 on Vitals.