Welcome. Dr. Jeffrey Lee Rosenblum, M.D. is a Board-Certified Urologist who has been in the private practice of urology in Chester County, PA since 1994. He offers state-of-the-art evaluation and treatment of many urologic conditions including prostate enlargement (BPH), urinary incontinence, erectile dysfunction (ED), kidney stones, male infertility, and prostate cancer. Minimally invasive procedures such as no-scalpel vasectomy are performed right in the office. Dr. Rosenblum also specializes in treating prostate enlargement with GreenLight Laser Therapy.