Koltun William D MD A Medical Corp Obstetrics, Gynecology is their Medial specialty. They are knowledgeable in the following conditions / disorders: Gastrointestinal Disorders, Infertility. Koltun William D MD A Medical Corp is located on 9040 Friars Rd Ste 540 in San Diego. They can be reached by phone by calling (619) 521-2830 . They can be reached by calling (619) 521-2830 . They have not yet been reviewed on MojoPages.com.