Dr. Marc T. Feder

Peter Schlegel is a Urologist in New York, New York. Dr. Schlegel is rated as an Elite provider by MediFind in the treatment of Sertoli Cell-Only Syndrome. His top areas of expertise are Sertoli Cell-Only Syndrome, Klinefelter Syndrome, Infertility, Vasectomy, and Hormone Replacement Therapy (HRT).

Russell Hayden, M.D., is a urologist with a sub-specialty in male infertility and microsurgery. It was during his graduate studies in biomedical engineering at Johns Hopkins University where Dr. Hayden’s drive to work in an impactful field of medicine where technology, precision, and creative problem solving align manifested. Dr. Hayden then earned his medical degree from Harvard University. He remained in Massachusetts to pursue his residencies in general surgery and urology from Massachusetts General Hospital in Boston. Dr. Hayden then completed his fellowship in reproductive medicine and microsurgery at Weill Cornell Medicine in New York. Coming from a family of tradesmen, Dr. Hayden takes pride in the levels of problem-solving urology requires, including the intricate and skill-heavy type of microsurgery that requires manipulation of tissue at magnifications as high as 25-fold, often with sutures finer than a human hair. Dr. Hayden is a member of the American Urological Association, the American Society for Reproductive Medicine, the Society for Male Reproduction and Urology, the Society for the Study of Male Reproduction, and the New York Academy of Sciences. He has published papers, written chapters, and presented several topics, including vestibular prostheses, azoospermia, metastatic prostate cancer, and more. Dr. Hayden joined Shady Grove Fertility’s Center for Male Fertility in 2021, and currently sees patients at the Chesterbrook, PA and Towson, MD, offices, as well as additional SGF Pennsylvania locations. Originally trained as an electrical engineer, Dr. Hayden enjoys making small robots and other toys with his two sons in his garage in his spare time as well as spending family time outdoors. Dr. Hayden is rated as a Distinguished provider by MediFind in the treatment of Sertoli Cell-Only Syndrome. His top areas of expertise are Sertoli Cell-Only Syndrome, Infertility, Klinefelter Syndrome, Vasectomy, and Ureteroscopy.

Ronnie Fine is a Urologist in New York, New York. Dr. Fine is rated as an Advanced provider by MediFind in the treatment of Sertoli Cell-Only Syndrome. Her top areas of expertise are Sertoli Cell-Only Syndrome, Varicocele, Hypospadias, Penectomy, and Cystectomy.