Our Physicians
Thomas Gross, M.D., Yolanda Renfroe, M.D., and Michael Leonardi, M.D., are board certified Maternal-Fetal subspecialists committed to providing high quality, compassionate, evidence-based, and cost-sensitive perinatal care to families of the Illinois North Central Perinatal Region. We emphasize communication, education, and consultation.

Thomas L. Gross, M.D.

Thomas L. Gross, M.D.Dr. Thomas Gross graduated from the University of Illinois College of Medicine at Chicago in 1971. He completed a residency in Obstetrics and Gynecology at Akron General Medical Center in Akron, Ohio in 1977. He pursued further training in high risk pregnancy by completing a fellowship in Maternal-Fetal Medicine at Case Western Reserve University in Cleveland, Ohio in 1979.

Dr. Gross is board certified by the American Board of Obstetrics and Gynecology in both general Obstetrics and Gynecology and Maternal-Fetal Medicine. He is director of Maternal-Fetal Medicine for North Central Perinatal Region in Illinois and Saint Francis Hospital in Peoria. His professional interests include management of high risk pregnancies and regionalization of obstetric care in the state of Illinois. He is a member of the State of Illinois Perinatal Advisory Committee, the subcommittee for hospital designation of obstetric care and the Advisory Committee of the American College of Obstetrics and Gynecology.

Yolanda R. Renfroe, M.D.

Yolanda R. Renfroe, M.D.Dr. Yolanda Renee Renfroe graduated from Howard University College of Medicine in Washington, D.C. in 1987. She completed a residency in Obstetrics and Gynecology at Wayne State University Affiliated Hospital Program Hutzel Hospital. She completed a fellowship in Maternal-Fetal Medicine at Hutzel Hospital/Wayne State University School of Medicine in Detroit, Michigan in 1993. She worked two years in private practice and as the residency program director at Wayne State University before moving to Peoria in November of 1995.

Dr. Renfroe is board certified by the American Board of Obstetrics and Gynecology, Inc. in both general Obstetrics and Gynecology and Maternal-Fetal Medicine. Her professional interests include, but are not limited to, comprehensive fetal ultrasound, prenatal diagnosis, prevention of pre-term birth, and management of high risk pregnancies. Her educational interests include, but are not limited to, medical student education in Obstetrics and Gynecology.

Michael Leonardi, M.D.

Michael Leonardi, M.D.Dr. Michael Leonardi graduated from Loyola University Stritch School of Medicine in Chicago in 1988. He completed his residency in Obstetrics and Gynecology at Wilford Hall UASF Medical Center in San Antonio, Texas in 1992.  Following two years of general OB/GYN practice, he pursued further training in high risk obstetrics. He completed a fellowship in Maternal-Fetal Medicine at Wayne State University in Detroit, Michigan in 1996.

Dr. Leonardi is board certified by the American Board of Obstetrics and Gynecology, Inc. in both general Obstetrics and Gynecology and Maternal-Fetal Medicine. His professional interests include comprehensive fetal ultrasound, prenatal diagnosis, prevention of preterm birth, and management of high risk pregnancies.

What is a Perinatologist?
A Perinatologist is a physician who specializes in Maternal-Fetal Medicine. Our physicians are Obstetrician-Gynecologists who spent extra years training to manage complicated and high-risk pregnancies. They are trained in comprehensive ultrasound and management of maternal and fetal medical and surgical diseases. All our physicians are board certified in Obstetrics, Gynecology, and Maternal-Fetal Medicine by the American Board of Obstetrics and Gynecology.