Peter L. Schoonmaker M.D. Not accepting new patients Peter L. Schoonmaker M.D. Medical Specialty Internal medicine Overview About Me Locations Adult Medicine Clinic at Harborview 325 9th Ave., Seattle, WA 98104 206.520.5000 Languages English About Peter L. Schoonmaker Peter Schoonmaker, M.D., is a resident physician at the Adult Medicine Clinic at Harborview Medical Center.Dr. Schoonmaker, who earned his degree at the UW, enjoys working together with patients to provide support, promote informed understanding and help improve overall health. Personal Interests Dr. Schoonmaker likes hiking, reading a good book, travel and spending time with friends and family.