© 2009 Mark L. Allen, M.D. Disclaimer Privacy & Terms of Use Urologist in Dallas Texas Serving the Urology Needs of North Texas Communities of Dallas Plano Carrollton Frisco, McKinney, Richardson Irving and Surrounding North TX Urology Treatments. Urology Specialist in Robotic Surgery and Robotic Prostatectomy for Prostate Cancer and Minimally Invasive Surgery (laparoscopic surgery) Female Urinary Incontinence Pelvic Floor Reconstruction Surgery & No Scalpel Vasectomy.