About
Dr. L. Dean Knoll serves as Director of the Men's Health Clinic and Prosthetic Urology for Urology Associates in Nashville. He earned his medical degree from the University of Health Sciences, Chicago Medical School in North Chicago, Illinois. He completed both his internship in general surgery and his residency in urology at the Mayo Clinic in Rochester, Minnesota. He holds board certification from the American Board of Urology and fellowship status in the American College of Surgeons. He also holds memberships in the American Urological Association, the International Society of Sexual Medicine, and the Sexual Medicine Society of North America.
Dr. Knoll has published more than 100 peer-reviewed articles, abstracts, and book chapters. He has served as principal investigator on over 110 basic science and clinical trials covering erectile dysfunction, urinary incontinence, BPH, and Peyronie's disease. In 1998, he became the first urologist in the world to use a collagen graft derived from pig small intestine to correct penile curvature caused by Peyronie's disease. He has since performed over 2,000 penile straightening procedures and over 7,000 penile implants and artificial urinary sphincters.
Education & Training
Medical School
University of Health Sciences, Chicago Medical School, North Chicago, Illinois (MD)
Residency
Mayo Clinic, Rochester, Minnesota (Internship in General Surgery and Residency in Urology)
Additional Training
Diplomat of the American Board of Urology; Fellow of the American College of Surgeons; Member of the American Urological Association; Member of the International Society of Sexual Medicine; Member of the Sexual Medicine Society of North America
Certifications
Conditions Treated
Who is Dr. Knoll right for?
Dr. Knoll is best suited for men facing complex urologic and sexual health conditions. Patients dealing with severe erectile dysfunction, Peyronie's disease, or urinary incontinence find strong expertise in his care. Men who have not responded to conservative treatments and are considering surgical options benefit from his extensive procedural experience. His background in clinical research also makes him a strong fit for patients seeking evidence-based, cutting-edge treatment approaches.
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Frequently Asked Questions
Dr. Knoll specializes in erectile dysfunction, Peyronie's disease, urinary incontinence, and BPH. He has particular expertise in prosthetic urology, including penile implants and artificial urinary sphincters. He also has deep experience in penile straightening procedures for Peyronie's disease correction.
Dr. Knoll has performed over 7,000 penile implants and artificial urinary sphincters throughout his career. He also has completed more than 2,000 penile straightening procedures. This volume of experience makes him one of the most practiced prosthetic urologists in the region.
Yes, Dr. Knoll holds board certification from the American Board of Urology. He also holds fellowship status in the American College of Surgeons. He maintains memberships in the American Urological Association, the International Society of Sexual Medicine, and the Sexual Medicine Society of North America.
Dr. Knoll earned his MD from the University of Health Sciences, Chicago Medical School in North Chicago, Illinois. He then completed both his general surgery internship and his urology residency at the Mayo Clinic in Rochester, Minnesota.
Dr. Knoll has published more than 100 peer-reviewed articles, abstracts, and book chapters. He has served as principal investigator on over 110 basic science and clinical trials. His research covers erectile dysfunction, urinary incontinence, BPH, and Peyronie's disease. In 1998, he became the first urologist in the world to use a collagen graft from pig small intestine to correct penile curvature.
Dr. Knoll serves as Director of the Men's Health Clinic and Prosthetic Urology at Urology Associates in Nashville. In this role, he leads the practice's surgical and prosthetic urology services for men across Middle Tennessee.
Yes, Dr. Knoll treats Peyronie's disease, including surgical correction of penile curvature. He has performed over 2,000 penile straightening procedures. He was also the first urologist in the world to use a specific collagen graft technique to correct curvature caused by Peyronie's disease, a milestone he achieved in 1998.
Doctor profile last updated March 21, 2026