Dr. David James Mast, MD

Dr. David Mast is an internal medicine physician with four decades of experience caring for patients in the Duluth area. He earned his medical degree from the University of Minnesota Medical School and completed his residency training at Hennepin County Medical Center. Dr. Mast speaks English and brings 41 years of clinical expertise to his practice.

Dr. Mast is affiliated with Aspirus Saint Lukes Hospital, Essentia Health Saint Marys Medical Center, and Essentia Health Duluth, with practice locations throughout Duluth, Minnesota. He specializes in treating anxiety disorders and depression, including depression in children and teens. His approach to care includes physical therapy and strength training programs, and he performs routine blood tests to monitor patient health. Patients consistently rate Dr. Mast highly, giving him an average rating of 5.0.