John Leung
Expertise in
3
conditions
Expertise in
3
conditions

Overview

John Leung, MD, AGAF, FACAAI is one of the few US dual board-certified physicians in Allergy/Immunology and Gastroenterology. He earned his medical degree from the University of Michigan and completed his internal medicine residency at the University of Iowa, followed by fellowships in Gastroenterology at Tufts Medical Center and Allergy/Immunology at Massachusetts General Hospital/Harvard Medical School. Dr. Leung started his career in academia in 2007 conducting NIH-funded and industry-sponsored bench-to-bedside research, and he has successfully conducted over 50 clinical trials since. In 2013, he established and directed the first Food Allergy Center at Tufts Medicine. Dr. Leung currently serves as an Adjunct Associate Professor at Tufts University.

In 2015, Dr. Leung founded Boston Specialists, an interdisciplinary practice that embraces an integrative approach to healthcare. This center brings together various specialists, registered dietitians, and a dedicated pharmacist, working collaboratively to meet the needs of their patients. The clinic also boasts a robust research initiative, which actively enrolls patients from across New England in clinical trials. Dr. Leung has co-authored over 50 peer-reviewed manuscripts including an article in New England Journal of Medicine, scientific abstracts, and book chapters. In 2024, Dr. Leung founded Boston Specialists Endoscopy Center to improve accessibility for his patients and streamline their healthcare experience.

Dr. Leung is highly rated in 3 conditions, according to our data. His top areas of expertise are Eosinophilic Esophagitis, Eosinophilic Enteropathy, Eosinophilic Colitis, Tissue Biopsy, and Endoscopy.

His clinical research consists of co-authoring 75 peer reviewed articles and participating in 10 clinical trials. MediFind looks at clinical research from the past 15 years.

Residency
University of Iowa Hospitals and Clinics
Specialties
Gastroenterology
Licenses
Medical License in MA
Medical License in ME
Medical License in NH
Board Certifications
Gastroenterology
Allergy And Immunology
Hospital Affiliations
Beth Israel Deaconess Needham
Beth Israel Deaconess Milton
Mount Auburn Hospital
St. Elizabeth’s Medical Center
Mass General Brigham Newton-Wellesley Hospital
Languages Spoken
English
Gender
Male

Insurance

MediFind strives to display the most accurate insurance information for every doctor. Please contact your provider to confirm if they accept your insurance.


Dr. John Leung accepts the following insurance:

  •  Humana

Locations

Boston Specialists
75 Kneeland St, Boston, MA 02111
617-804-6767

Additional Areas of Focus

Dr. Leung has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


10 Clinical Trials

View 9 Less Clinical Trials
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Areas of Expertise

When evaluating expertise, MediFind pulls from factors such as the number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

To learn more about how MediFind determines the expertise levels, check out our expert tiers page.

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