John Leung
Distinguished in Eosinophilic Colitis
Distinguished in Eosinophilic Colitis
75 Kneeland St, 
Boston, MA 

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 rated as a Distinguished provider by MediFind in the treatment of Eosinophilic Colitis. His top areas of expertise are Eosinophilic Esophagitis, Eosinophilic Enteropathy, Eosinophilic Colitis, Endoscopy, and Tissue Biopsy.

His clinical research consists of co-authoring 78 peer reviewed articles and participating in 10 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 3 articles and participated in 2 clinical trials in the study of Eosinophilic Colitis.

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

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
BMC HealthNet
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
Buckeye Health Plan
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE-MEDICAID PLAN
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Capital District Physicians Health
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Commonwealth Care Alliance
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
EMI Health
  • PPO
Group Health Cooperative
  • HMO
  • POS
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Health First
  • HMO
  • POS
Health New England
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
HealthPartners
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Mass General Brigham Health Plan
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medical Mutual
  • HMO
  • PPO
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Neighborhood
  • MANAGED MEDICAID PLAN
  • MEDICARE ASSISTANCE PROGRAM
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
NH Healthy Families
  • EPO
  • MANAGED MEDICAID PLAN
Nippon Life
  • INSURANCE PLAN
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
Spectrum Priority Health
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
Sutter Health
  • HMO
  • OTHER COMMERCIAL
Trustmark
  • PPO
Tufts
  • HMO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
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Locations

Boston Specialists
75 Kneeland St, Boston, MA 02111

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

MediFind evaluates expertise by pulling from factors such as 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.

Learn more about MediFind’s expert tiers

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