A board-certified pediatric gastroenterologist and Professor of Pediatrics, he specializes in complex, multisystem gastrointestinal disorders and serves as an expert witness in disputes involving motility disorders, inflammatory bowel disease, and pediatric feeding disorders. His medical training includes completion of a general surgery internship, residency training in pediatrics, and fellowship training in pediatric gastroenterology, and he has held leadership roles within pediatric gastroenterology, hepatology, and nutrition divisions, as well as medical directorship and senior medical staff positions within institutional and military medical settings.

His clinical focus centers on pediatric neurogastroenterology and motility disorders, including gastroparesis, refractory constipation, pseudo-obstruction, rumination syndrome, chronic abdominal pain, chronic nausea, inflammatory bowel diseases, and autonomic nervous system-related gastrointestinal dysfunction. His work involves high-resolution manometry, esophageal motility assessment, evaluation of orthostatic intolerance-associated gastrointestinal symptoms, and management of complex feeding and functional gastrointestinal disorders, and he collaborates across cardiology, neurology, and psychology in assessing multifactorial pediatric presentations. He has contributed to peer-reviewed research and consensus statements addressing pediatric autonomic and motility disorders and provides expert witness services including consultations, depositions, arbitrations, and courtroom testimony in matters involving pediatric gastrointestinal and motility conditions.