John Leung, MD, AGAF, FACAAI is the only US physician dual board certified in Allergy/Immunology and Gastroenterology. 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 proceeded with a Gastroenterology fellowship at Tufts Medical Center and an Allergy/Immunology fellowship at Massachusetts General Hospital/Harvard Medical School. He began his early career in academia working on several NIH-funded research projects.He is a former site principal investigator of the Consortium of Eosinophilic Gastrointestinal Disease Researchers (CEGiR). He established and directed the Center for Food Related Diseases at Tufts Medical Center and the Pediatric Food Allergy Center at Tufts Children’s Hospital.In 2015, Dr. Leung founded Boston Specialists/Boston Food Allergy Center. The center has become one of the most distinguished independent clinical and research centers in New England, treating 250-300 patients per week. He has conducted over 40 industry and federally funded clinical trials since 2010. He is currently an adjunct assistant professor at Tufts Friedman School of Nutrition Science and Policy, and an adjunct faculty member of the Immunology Program at Tufts Graduate School of Biomedical Sciences. Both his clinical and research focus are on eosinophilic gastrointestinal diseases, mast cell GI disorders and food allergy/intolerance. He has co-authored more than 50 peer-reviewed manuscripts including an article in New England Journal of Medicine, numerous scientific abstracts, book chapters, and online tutorials. He has been invited to lecture at many well-renowned institutions, some of which include Tufts Medical School, Massachusetts General Hospital, Brigham and Women’s Hospital, Beth Israel Deaconess Medical Center, Massachusetts Medical Society, and the American Gastroenterology Association. Dr. Leung is rated as an Elite provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Eosinophilic Esophagitis, Eosinophilic Enteropathy, Eosinophilic Colitis, Endoscopy, and Tissue Biopsy.

Walter Chan is a Gastroenterologist in Boston, Massachusetts. Dr. Chan is rated as an Elite provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Esophagitis, Small Bowel Bacterial Overgrowth, Endoscopy, and Gastric Bypass. Dr. Chan is currently accepting new patients.

Mandeep Sawhney is an Internal Medicine provider in Boston, Massachusetts. Dr. Sawhney is rated as an Advanced provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Choledocholithiasis, Pancreatic Cancer, Barrett Esophagus, Endoscopy, and Colonoscopy.

Rachel Rosen is a Pediatric Gastroenterologist and a Pediatrics provider in Boston, Massachusetts. Dr. Rosen is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Gastroesophageal Reflux Disease (GERD), Gastroesophageal Reflux in Infants, Swallowing Difficulty, Gastrostomy, and Myringotomy. Dr. Rosen is currently accepting new patients.

Kari Nadeau is an Allergy and Immunologist in Boston, Massachusetts. Dr. Nadeau is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Asthma, Food Allergy, Eosinophilic Esophagitis, Esophagitis, and Septoplasty.

Mayssan Muftah is a Hepatologist and a Gastroenterologist in Boston, Massachusetts. Dr. Muftah is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Esophagitis, Eosinophilic Esophagitis, Bowel Incontinence, Eosinophilic Enteropathy, and Endoscopy.

David Fefferman is a Gastroenterologist in Stoneham, Massachusetts. Dr. Fefferman is rated as an Advanced provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Choledocholithiasis, Familial Adenomatous Polyposis, Barrett Esophagus, Endoscopy, and Colonoscopy.

Catherine Cheney is an Internal Medicine provider in Lexington, Massachusetts. Dr. Cheney is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Attenuated Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, and Familial Adenomatous Polyposis.

John Garber is a Gastroenterologist in Boston, Massachusetts. Dr. Garber is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

Qian Yuan is a Pediatrics specialist and a Pediatric Gastroenterologist in Boston, Massachusetts. Dr. Yuan is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Proctitis, Eosinophilic Esophagitis, Esophagitis, and Viral Gastroenteritis. Dr. Yuan is currently accepting new patients.

Peter Bonis is a Gastroenterologist in Boston, Massachusetts. Dr. Bonis is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Lower Esophageal Ring, Eosinophilic Esophagitis, Esophagitis, Gastritis, and Endoscopy.

Li Zhou is a primary care provider, practicing in Internal Medicine in Boston, Massachusetts. Dr. Zhou is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Chronic Cough, and Hypertension.

Sunil Sheth is an Internal Medicine provider in Boston, Massachusetts. Dr. Sheth is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Hereditary Pancreatitis, Acute Pancreatitis, Chronic Pancreatitis, Endoscopy, and Gastrostomy.

Daniel Leffler is an Internal Medicine provider in Boston, Massachusetts. Dr. Leffler is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Celiac Disease, Malabsorption, Diarrhea, Colonoscopy, and Endoscopy.

Trisha Pasricha is an Internal Medicine provider in Boston, Massachusetts. Dr. Pasricha has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Gastroparesis, Gastric Dysmotility, Proctitis, Sacral Nerve Stimulation, and Endoscopy.

Joseph Feuerstein is an Internal Medicine provider in Boston, Massachusetts. Dr. Feuerstein is rated as an Experienced provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Gastrointestinal Bleeding, Ulcerative Colitis, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

Eitan Rubinstein is a Gastroenterologist in Boston, Massachusetts. Dr. Rubinstein is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Eosinophilic Enteropathy, Gastrectomy, and Colonoscopy.

Erin Syverson is a Pediatric Gastroenterologist and a Pediatrics provider in Boston, Massachusetts. Dr. Syverson is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Chronic Idiopathic Constipation (CIC), Eosinophilic Enteropathy, and Gastrectomy. Dr. Syverson is currently accepting new patients.

Elizabeth Hait is a Pediatric Gastroenterologist and a Gastroenterologist in Boston, Massachusetts. Dr. Hait is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. Her top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Lactose Intolerance, and Chronic Idiopathic Constipation (CIC).

John Lee is an Allergy and Immunologist in Boston, Massachusetts. Dr. Lee is rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Esophagitis. His top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Food Allergy, and Hives.