Physician Profile Dr. Oliver Ko Dr. Oliver Ko Dr. Ko is a fellowship trained urologist interested in minimally invasive surgery and new technologies to treat prostate enlargement (BPH) such as Aquablation. Medical School: Case Western Reserve University School of Medicine Residency: Northwestern University McGaw Medical Center Fellowship: University of Southern California Locations Academic Urology & Urogynecology of Arizona Litchfield Park, AZ 14044 W Camelback Road #118Litchfield Park, AZ 85340United States View Location Profile