Dr. Tiffany A. Von Wald

Nanette Santoro, M.D., completed her medical training in the 6-year B.S.-M.D. program at Rensselaer Polytechnic Institute and Albany Medical College, followed by residency at Beth Israel Medical Center in New York City and a fellowship in Reproductive Endocrinology at Massachusetts General Hospital, where she remained on faculty for 3 years prior to joining the faculty at New Jersey Medical School in 1988. She helped recruit talent to make the University of Colorado’s Department of OB/GYN #8 in the country for NIH funding in 2017. Over the course of her career thus far, Dr. Santoro has personally mentored over 100 students, residents, postdoctoral fellows, and junior faculty, many of whom have gone on to illustrious academic careers. An accomplished researcher, Dr. Santoro’s current exploration involves treatment of menopausal symptoms in women, understanding the mechanisms by which obesity causes relative infertility in women, participating in clinical trials in reproductive medicine, and research training of OB/GYNs and reproductive endocrinologists. Dr. Santoro worked closely with the former CU ARM laboratory, which specialized in the development and measurement of reproductive hormones using state-of-the-art methodologies. Dr. Santoro has developed techniques to perform field studies that allow for daily hormone assessments without the inconvenience of blood drawing by using urine sampling. She is past Chair of the Steering Committee for the Reproductive Medicine Network, and current principal investigator with the CONFIRM network, both NIH-funded clinical trial networks devoted to the study of problems in human reproduction. In addition to her extensive research, Dr. Santoro has authored over 300 peer-reviewed scientific publications and edited four books. Additionally, Dr. Santoro has held leadership positions with numerous professional organizations and is currently President-Elect of the Society for Reproductive Investigation. Among Dr. Santoro’s decorated career of achievements, she was elected to the National Academy of Medicine in 2018. Dr. Santoro has been named a Castle Connelly “Best Doctor” and “Best Doctor in America” as well as a “Best Doctor” by New York Magazine and “Top Doc” by 5280 Magazine. Dr. Santoro sees SGF Colorado patients at the Denver office, while also maintaining her position at CU treating women for complex menopause management. Dr. Santoro will continue to provide training to the University of Colorado Reproductive Endocrinology and Infertility fellowship program. Dr. Santoro is rated as an Elite provider by MediFind in the treatment of Premature Ovarian Failure. Her top areas of expertise are Menopause, Infertility, Ovarian Cysts, Hormone Replacement Therapy (HRT), and Oophorectomy.

Dana Ambler is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Denver, Colorado. Dr. Ambler is rated as an Advanced provider by MediFind in the treatment of Premature Ovarian Failure. Her top areas of expertise are Infertility, Endometrial Polyps, Asherman Syndrome, and Polycystic Ovary Syndrome.

Ivy L. Lersten, M.D., is board certified in obstetrics and gynecology (OB/GYN) and board eligible in reproductive endocrinology and infertility (REI). Dr. Lersten earned her medical degree at the University of Iowa Carver College of Medicine, graduating in the research distinction track. She then completed her residency in OB/GYN at the University of Colorado School of Medicine, Anschutz Medical Campus in Aurora, Colorado where she was also an education chief resident. She stayed at the University of Colorado to complete her REI fellowship. As an avid researcher, Dr. Lersten received ASRM’s Fertility Preservation Special Interest Group Prize Paper Award for her work on fertility preservation. The award-winning study, Ovarian Response and Anti-Mullerian Hormone in Fertility Preservation Versus Elective Oocyte Cryopreservation Cycles, concluded that patients with a recent cancer diagnosis can expect comparable results from fertility preservation treatment to those who are undergoing elective egg-freezing. She is interested in ovarian biology and furthered her knowledge studying ways to optimize ovarian tissue cryopreservation in fellowship which culminated in an international oral presentation at the Society of Reproductive Investigation. Dr. Lersten is a member of the American College of Obstetricians and Gynecologists (ACOG), the American Society for Reproductive Medicine (ASRM), and the Society for Reproductive Endocrinology and Infertility (SREI). Always ready to listen, provide options, and educate her patients, Dr. Lersten provides care at SGF Colorado’s Denver location. In her spare time, she enjoys playing tennis, cheering on Arsenal, and cooking. Dr. Lersten is rated as an Experienced provider by MediFind in the treatment of Premature Ovarian Failure. Her top areas of expertise are Infertility, Endometrial Polyps, Sertoli Cell-Only Syndrome, and Asherman Syndrome.