William S Trask, D.O. (866) 491-1244 Primary Specialties Anesthesiology SHARE Primary Office Address BVA/BCH Surgery Dept. P.O. Box 9019 Boulder, CO 80301-9019 Get Directions Phone (866) 491-1244 Fax (303) 785-1725 Education Medical School Kirksville College of Osteopathic Residency University of Washington Med Center