University of Wisconsin–Madison

Daniel H. Williams IV, MD

Vice Chair for Education; Urology Residency Program Director; UWMF Professor in Clinical Urology; Professor (CHS)

Specialties: Benign Prostatic Hyperplasia (BPH), Male Factor Infertility and Sexual Health

(608) 263-4563

UW Medical Foundation Centennial Building
1685 Highland Ave
MADISON, WI 53705-2281


  • MD, College of Physicians and Surgeons, Columbia University, New York, NY
  • Internship and Residency, McGaw Medical Center, Northwestern University, Chicago, IL
  • Fellowship, Male Reproductive Medicine and Surgery, Baylor College of Medicine, Houston, TX

Clinical Specialties

Dr. Williams is a board certified urologist who specializes in all aspects of male infertility including microsurgical vasectomy reversal (vasovasostomy and the more complex vasoepididymostomy), microsurgical varicocelectomy, sperm procurement techniques and cryopreservation, and treatment of testicular failure and male hypogonadism (testosterone deficiency). In addition, his work in general urology includes medical and surgical treatments of erectile dysfunction; Peyronie’s disease; diagnosis, evaluation and treatment of benign prostatic hyperplasia (including laser treatment of BPH); urinary tract infections, and prostatitis. Dr. Williams also performs vasectomies.

Research Interests

Dr. Williams’ research interests in male infertility include the preservation of fertility in men with cancer, the effects of advanced paternal age and the environment on male reproductive potential, and clinical outcomes of male reproductive tract reconstructions.

Recent Publications