Dr. Allen has been in practice since 1992. He graduated from the University of Texas, University of Texas Medical School at San Antonio, and urologic residency at University of Tennessee.

Dr. Allen treats all disorders and conditions of the male and female urogenital system. He focuses on the treatment of prostate cancer with the da Vinci Robotic system and state of the art radiation treatment. He also focuses on the treatment of male incontinence and sexual dysfunction with expertise in prosthetic surgeries. Also he is a leader in the area of female reconstructive surgery for organ prolapse and incontinence.