William S Trask, D.O. (866) 491-1244 Primary Specialties Anesthesiology SHARE Primary Office Address BVA/BCH Surgery Dept. 4747 Arapahoe Avenue Boulder, CO 80303 Get Directions Phone (866) 491-1244 Fax (303) 785-1725 Education Medical School Kirksville College of Osteopathic Residency University of Washington Med Center