Gregory Dunham, MD Primary Specialty: OB/GYN Affiliations Shannon Clinic - Harris Education Board Certification American Board of Obstetrics and Gynecology - Obstetrics and Gynecology Medical School University of Texas Southwestern Medical SchoolDallas, TX Residency St. Joseph HospitalDenver, CO Ratings 562 Ratings, 68 Comments 08/15/2026 They were very courteous 08/14/2026 Caring and helpful. 08/12/2026 I have been a patient since 1988. Best doctor I know. Delivered six of my eight grandchildren and eight of my great grandchildren. We have a history. 08/12/2026 Excellent Care. Show More