Urology Experts in the Shenandoah Valley. As experts in minimally invasive procedures and office-based urologic care, Shenandoah Urologic Specialists in Winchester is the practice for erectile dysfunction, low testosterone treatment, vasectomy and many other urologic services.Shane Geib, M.D‧Nursing Staff‧For Women‧About SUS‧Erectile Dysfunction (ED)‧Low Testosterone.