Dr. John Michael Hollier, MD

Dr. John Hollier specializes in gastroenterology and pediatrics, bringing together expertise in digestive health and children's medical care. He earned his medical degree from University of Texas Southwestern Medical School and completed his residency at University of California at San Francisco. With 21 years of experience in practice, Dr. Hollier serves young patients with complex gastrointestinal conditions. He is fluent in both Spanish and English.

Dr. Hollier practices at Texas Children's Hospital in Houston, Texas, where he treats children with challenging digestive disorders. His clinical focus includes helping patients with malabsorption syndromes and short bowel syndrome, conditions that affect how the body processes nutrients from food. He also provides care for children experiencing chronic constipation. Dr. Hollier performs specialized diagnostic procedures including pathology tests and immunology studies to help identify underlying causes of digestive problems.