In vitro fertilization (IVF): Approach to Care

Our program is a leading model for IVF centers in the US, offering preimplantation genetic diagnosis (PGD). With PGD we are capable of determining whether an embryo is free of certain genetic diseases. Women over age 35 can have a PGD performed on embryos to check for aneuploidy (an incorrect number of chromosomes) in chromosomes 13, 18, 21, X and Y. Also, couples who are at risk for Cystic Fibrosis,  Tay-Sachs, Duchenne’s Muscular Dystrophy, Spinal Muscular Atrophy and other diseases are candidates for PGD. 

While participating in our program, each couple receives personal counseling and education. We offer a committed staff of specialists, dedicated counselors and carefully maintained facilities.

Multidisciplinary team 

R. Stan Williams, M.D.

UF College of Medicine professor, Obstetrics and Gynecology
Chief, Division of Reproductive Endocrinology and Infertility, medical director, In Vitro Fertilization program, medical director

Stan Williams, M.D., attended undergraduate and medical school at the University of North Carolina, Chapel Hill. After graduation from medical school in 1979, he obtained residency training in Obstetrics and Gynecology at the Medical University of South Carolina, Charleston. 

He served in the Air Force for three years practicing OB/GYN at Chanute Air Force Base, IL. While in the Air Force, he obtained the rank of Major and became the Chief of OB/GYN. Dr. Williams left the Air Force to receive subspecialty fellowship training in Reproductive Endocrinology and Infertility at the University of Louisville. 

He joined the University of Florida College of Medicine faculty in 1988. He teaches medical students and OB/GYN resident doctors at the University of Florida Clinics and UF Health,  as well as teaching OB/GYN practitioners in Florida about the latest advances in endocrinology, infertility and advanced laparoscopic surgery. 

In 1998 he was selected as one of the "Best Doctors in America," as featured on 60 Minutes, USA Today, The New York Times and other national media.

Alice Sue Rhoton-Vlasak, M.D.

UF College of Medicine clinical assistant professor, Department of Obstetrics and Gynecology 

Alice Rhoton-Vlasak, MD, grew up in Gainesville, Florida in a family of distinguished and committed physicians. After graduating from Wake Forest University with a B.S. in Biology, she enrolled in Medical School at the University of Florida in 1985 where she was elected to the Medical Honor Society. She completed her training in Obstetrics and Gynecology at the UF College of Medicine in 1993 and stayed in the faculty for one year before enrolling in a fellowship in Reproductive Endocrinology and Infertility at the Mayo Clinic in Rochester, Minnesota. She then joined the faculty of the Department of OB/GYN at the University of South Florida. She returned in 1998 to the Department of OB/GYN at UF, where she is a Clinical Assistant Professor and Director of the Sperm Donor Program. 

Her professional interests are in the Assisted Reproductive Technologies, hormonal disorders in women, management of contraceptive needs and surgical treatment of infertile women. She has been the author or co-author of several published papers, abstracts and book reviews. 

Other team members

  • Larissa Kovalinskaia, B.Sc.,T.S. 
  • Man Li, M.D., Ph.D.
  • Ming Cheng Liu, M.D.
  • Virginia Frances Pitcher R.N.
  • Pamela Sue Probert, A.R.N.P., M.N., C.S.-F.N.P.