August 28, 2025
Boulder Medical Center Urologists bring innovative research for the treatment of prostate cancer to the Boulder County and Colorado community.
Urology
Treating urinary tract and male genitoreproductive systems
About Dr. Siegel
Dr. Stephen Siegel is a diplomate of the American Board of Urology (board certified). An honors graduate of Duke University and Vanderbilt University School of Medicine, he completed his general surgery training and urology residency at Yale New Haven Hospital. Before coming to Boulder Medical Center, he was in private practice in Connecticut and Georgia.
Dr. Siegel is experienced with prostate cancer and BPH. He has ranked in the top 20 in the world for the number of Aquablation therapies he has completed and has been recognized by 5280 magazine as a top doctor every year since 2023.
When not seeing patients, Dr. Siegel enjoys road cycling, playing guitar (School of Rock student since 2012), tennis, and hiking.
Specialty Areas
Dr. Stephen Siegel addresses a full spectrum of adult urology. His special interests include advanced prostate cancer care along with the newest in diagnostic, Robotic surgery, and treatments for all stages of the disease.
Dr. Siegel has performed over 3,000 No-Needle, No-Scalpel vasectomies and is highly experienced with Xiaflex injection therapy. At his previous medical practice in Connecticut, Dr. Siegel was one of the state’s top users of Xiaflex injections for patients.
He also offers minimally invasive treatments for enlarged prostate, including the UroLift and Rezum procedures, which can be performed in his clinic at Boulder Medical Center.
Conditions that Dr. Siegel treats and the services he offers include:
- Prostate Cancer Care – Diagnosis and treatment
- Robotic-assisted radical prostatectomy
- Enlarged Prostate (BPH) — Minimally invasive and in-office treatments, including Aquablation
- No-Needle, No-Scalpel vasectomy
- Minimally invasive stone surgery
- Minimally invasive treatment for stress urinary incontinence
- Xiaflex therapy for Peyronie’s Disease
Education and Certifications
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Residency — Yale School of Medicine - Department of Urology
Urology Resident / Chief Resident
New Haven, CT
1998
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Internship — Yale School of Medicine - Department of Surgery
Intern / Resident General Surgery
New Haven, CT
1995
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Medical School — Vanderbilt University School of Medicine
MD
Nashville, TN
1993
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Undergraduate — Duke University
BA - Economics
Durham, NC
1989
Professional Affiliations
- American Board of Urology
- Boulder County Medical Society
Articles from Stephen B. Siegel, MD
June 18, 2025
Looking for a low-stress, effective option for permanent birth control? Boulder Medical Center offers no-needle, no-scalpel vasectomies in Boulder and Louisville, performed…
April 4, 2024
Aquablation Therapy offers relief without fear of side effects. Now available at Boulder Medical Center with urologist Dr. Stephen Siegel.