Dr. Koi is a licensed Urology in MD. Medical degree obtained from Tufts University School Of Medicine. Completed residency training at Montefiore Health System. Currently practices at Chesapeak Urology (Chesapeak Urology), located at 3801 International Dr, Silver Spring, MD 20906. Dr. Koi specializes in kidney stones, prostatic diseases, female urology (including incontinence), no-needle/no-scalpel vasectomy, minimally invasive prostate procedures, testosterone replacement, and voiding dysfunction. . In addition to English, Dr. Koi speaks Mandarin.