Dr. Steven G. Koopman

Craig Niederberger is an Urologist in Chicago, Illinois. Dr. Niederberger is rated as a Distinguished provider by MediFind in the treatment of Infertility. His top areas of expertise are Infertility, Varicocele, Hypogonadism, Vasectomy, and Hormone Replacement Therapy (HRT).

Robert Brannigan is an Urologist in Chicago, Illinois. Dr. Brannigan has been practicing medicine for over 33 years and is rated as an Elite provider by MediFind in the treatment of Infertility. His top areas of expertise are Low Testosterone, Infertility, Testicular Failure, Vasectomy, and Orchiectomy.

Dr. Samuel Ohlander is committed to building a trusting relationship with his patients by providing honest, compassionate, and collaborative care. He is board certified in Urology and specializes in male infertility, fertility preservation, low testosterone, vasectomies, and microsurgical vasectomy reversals. He earned his medical degree at the University of Illinois at Chicago College of Medicine where he also completed his residency in surgery and urology. He then completed a fellowship in male reproductive medicine and surgery at Baylor College of Medicine. In addition to seeing patients, Dr. Ohlander is a contributor to the University of Illinois medical school curriculum, education, and counseling. He has been published on the medical management of male infertility in Campbell’s Urology, Infertility in the Male, the most significant urologic and male reproductive medicine textbooks. Dr. Ohlander understands that male infertility is a sensitive issue for many patients. He strives to provide a comfortable and open environment so that his patients feel empowered as they take steps to grow their families. Dr. Ohlander is rated as an Advanced provider by MediFind in the treatment of Infertility. His top areas of expertise are Infertility, Sertoli Cell-Only Syndrome, Spermatogenesis Arrest, Prostatectomy, and Penectomy.