eClinicalworks Patient Portal. eClinicalworks Patient User Registration Guide. Request an Appointment. The Urology Group. www.urologygroupvirginia.com. 19415 Deerfield Avenue • Suite 112 • Lansdowne, VA 20176 • 703-724-1195; 1860 Town Center Drive • Suites 150 & 160 • Reston, VA 20190 • 703-480-0220;.