Dr. Mark A. Feist is a pediatric gastroenterologist at Covenant Children’s specializing in gastroenterology, hepatology and nutrition. He is board-certified by the American Board of Pediatrics in Pediatric Gastroenterology, Hepatology and Nutrition. Dr. Feist moved to Lubbock to attend college and considers himself a true West Texan. He has been married to his wife for over 20 years and they have three daughters. He is interested in all aspects of pediatric GI, and the variety of disease processes that are encountered is what led him to pursue this specialty.