His interests include the care of infants, children and adolescents with Crohn's disease, ulcerative colitis and liver disease. His area of research includes the epidemiology, natural history, and genetic basis of childhood-onset ulcerative colitis, Crohn disease, and cholestatic liver diseases. Dr. Guthery is board certified in General Pediatrics, Pediatric Gastroenterology, and Pediatric Transplant Hepatology.