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 612 Ratings, 63 Comments 07/09/2026 Always very kind and thorough. 07/06/2026 Dr. Dunham is the reason I felt confident in having my procedure done at Shannon. 07/03/2026 Dr Dunham's treatment and care has really made a difference in my daily life. 07/02/2026 Dr Dunham was respectful and explained all that i needed to know. Show More