Dr. Paul J. Rizk

Mohit Khera, M.D., M.B.A., M.P.H., Associate Professor, is the Director of the Laboratory for Andrology Research at McNair Medical Institute, Baylor College of Medicine. He is also the Medical Director of the Executive Health Program at Baylor. Dr. Khera is a Board-certified urologist specializing in male infertility, male and female sexual dysfunction, and declining testosterone levels in aging men. Dr. Khera's research focuses on the efficacy of botulinum toxin type A in treating Peyronie's disease as well as genetic and epigenetic studies on post-finasteride syndrome patients and testosterone replacement therapy. Dr. Khera is rated as an Elite provider by MediFind in the treatment of Isolated Hypogonadotropic Hypogonadism. His top areas of expertise are Hypogonadism, Peyronie Disease, Erectile Dysfunction (ED), Hormone Replacement Therapy (HRT), and Prostatectomy.

Larry I. Lipshultz, M.D., is Professor of Urology and Chief of the Scott Department of Urology’s Division of Male Reproductive Medicine and Surgery. Dr. Lipshultz, who holds the Smith Chair in Reproductive Medicine, is a well-known authority on abnormalities of male reproduction, erectile dysfunction, and male hormone production. He received his medical training at the University of Pennsylvania and received fellowship training at the University of Texas at Houston as the first AUA research scholar. Recognized as a leading expert on men’s health, Dr. Lipshultz is a highly respected author and editor, as well as lecturer. Teacher as well as physician, researcher, writer, and editor, Dr. Lipshultz instituted a fellowship training program in male reproductive medicine and surgery that has trained more than 80 physicians who are now in practice both here and abroad. Dr. Lipshultz is rated as an Elite provider by MediFind in the treatment of Isolated Hypogonadotropic Hypogonadism. His top areas of expertise are Peyronie Disease, Hypogonadism, Infertility, Vasectomy, and Hormone Replacement Therapy (HRT).

Taylor Poteet Kohn, MD, M.Phil. is an academic urologist and physician-scientist specializing in male infertility and sexual medicine, including azoospermia, disorders of sperm production, erectile dysfunction, and penile prosthesis surgery. He is an Assistant Professor in the Scott Department of Urology at Baylor College of Medicine.Dr. Kohn’s clinical practice focuses on the evaluation and treatment of male infertility, with particular expertise in azoospermia, including non-obstructive azoospermia, severe oligospermia, and infertility related to genetic conditions such as Klinefelter syndrome, prior chemotherapy or radiation therapy, undescended testicles, hormonal disorders, and testicular failure. He also specializes in fertility preservation and surgical sperm retrieval for couples pursuing assisted reproductive technologies.In addition, Dr. Kohn provides comprehensive care in sexual medicine, treating men with erectile dysfunction, Peyronie’s disease, and male hormonal disorders. He offers the full spectrum of erectile dysfunction therapies, including medical, injection-based, and surgical options such as penile prosthesis implantation.As a physician-scientist, Dr. Kohn leads a research program focused on improving outcomes for men with azoospermia and male infertility. His work centers on high-frequency and quantitative ultrasound sperm mapping to identify testicular regions most likely to contain sperm. Dr. Kohn is rated as a Distinguished provider by MediFind in the treatment of Isolated Hypogonadotropic Hypogonadism. His top areas of expertise are Erectile Dysfunction (ED), Partial Deletion of Y, Peyronie Disease, Hormone Replacement Therapy (HRT), and Vasectomy.