About Mary F. Bergum, MD. Mary F. Bergum, MD is a family medicine doctor and primary care doctor who practices at Mary F. Bergum, Md located at 3154 E 29th Ave in Spokane, WA 99223 (Spokane County). Dr. Mary F. Bergum has 15+ years of experience in family medicine. Education. Mary F. Bergum, MD earned a degree of a Doctor of Medicine..