Board certified in obstetrics and gynecology and clinical genetics, his clinical expertise and research interests are in prenatal diagnosis, genetic screening and ultrasonography. He is also keenly interested in student and resident education, having served as the clerkship director at Baylor College of Medicine in Houston, Texas. As medical director, Dr. Dungan is involved in multiple areas of the graduate program, including student supervision and research, the Research Oversight Committee, the Advisory Committee, and the Admissions Committee. He also lectures in several courses.