All infants and children experience digestive upsets at some point and in most cases, their primary care physician can help them get better. But when disorders of the digestive system are severe, persistent or complex, families may be referred to a specialist in children's digestive disorders. This kind of specialist is known as a pediatric gastroenterologist. At Stony Brook Children's, the Division of Pediatric Gastroenterology and Nutrition serves Suffolk County as a referral center for complex cases. We specialize in diagnosis and long-term care for children with gastrointestinal, liver, pancreatic and nutritional disorders including celiac disease at our own Celiac and Gluten Sensitivity Center, the first comprehensive center on Long Island to address celiac and gluten issues for children and teens. Committed to delivering comprehensive, collaborative care, our gastroenterology department conducts about 5,000 outpatient visits, and 750 inpatient consults and endoscopies per year. The Division is actively involved in clinical and basic science research in the field of pediatric gastroenterology and nutrition. We also teach medical students, residents and fellows affiliated with the Stony Brook University School of Medicine.