Dr. Rebecca Z. Sokol is Professor Emerita of Obstetrics and Gynecology and Medicine at the Keck School of Medicine at the University of Southern California. Dr. Sokol is an internationally recognized expert in male reproduction. Her clinical practice is devoted to the diagnosis and treatment of male reproductive problems: male infertility; low testosterone levels in adult men (“male menopause”); delayed puberty and congenital causes of low testosterone including Kallmann’s Syndrome and Klinefelter’s Syndrome; testosterone replacement therapy; and the identification of drugs and chemicals that interfere with hormones and sperm function. Dr. Sokol is listed in numerous directories of outstanding clinicians including “The Best Doctors in America” continuously since 1996.

In addition to her clinical experience, Dr. Sokol is one of the leading researchers in male reproduction and reproductive toxicology. The NIH has supported her research for over 30 years, and she has received many awards for her research. She is a frequent reviewer for many scholarly journals and granting organizations and has served as an advisor to the NIH, CDC, and National Toxicology Program. She has delivered over 100 invited talks and has authored or co-authored over 100 publications. She has served on the Editorial Board of the Journal of Andrology and the Editorial Advisory Board of Fertility and Sterility.