Dr. Thomas is Professor of Obstetrics and Gynecology as well as Chief of the Division of Reproductive Endocrinology at the University of Cincinnati College of Medicine. He is board certified in both obstetrics and gynecology and reproductive endocrinology and infertility.

He graduated from the University of Illinois College of Medicine and was a resident in obstetrics and gynecology at Wayne State University in Detroit. Dr. Thomas completed his fellowship in reproductive endocrinology and infertility at the University of Cincinnati College of Medicine.

Dr. Thomas is nationally recognized as a leader in the field of assisted reproduction. He has over 90 scientific publications and book chapters and serves on national committees including the Society of Reproductive Endocrinologists, Association for Reproductive Health Professionals, American Society for Reproductive Medicine Patient Education Committee, American Society for Reproductive Medicine Contraceptive Special Interest Group, and American Society for Reproductive Medicine Practice Committee.

He is also Director of Reproductive Medicine Research, a clinical research unit that is funded by federal and private institutions, at the University of Cincinnati. Dr. Thomas is the Principal Investigator of the Contraceptive Clinical Network on the National Institutes of Health and has grants from many pharmaceutical companies. His research interests include contraception, infertility and the effects of stress on reproductive function.