DR. JOHN LEUNG 
Board Certified in Gastroenterology and Allergy & Immunology

He attended medical school at University of Michigan Medical School and completed his internal medicine residency at University of Iowa Hospitals and Clinics. He then finished a Gastroenterology fellowship at Tufts Medical Center. He worked as a gastroenterology consultant at Tufts Medical Center for a year before completing an Allergy/Immunology clinical and research fellowship at Massachusetts General Hospital/Harvard Medical School. His clinical and research focus are on eosinophilic esophagitis and food allergy. He has coauthored more than 40 peer-reviewed manuscripts, scientific abstracts, book chapters, and online tutorials.