★★★★★4.78 out of 5 (474 Ratings)

✓ Accepting New Patients

Biography

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 the Tufts School of Medicine Department of Public Health and Community Medicine, 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.

Overview

Programs + Specialties: Gastroenterology, Allergy/Immunology & Nutrition

Training + Education: University of Michigan Medical School; University of Iowa Hospitals and Clinics; Tufts Medical Center; Massachusetts General Hospital, Harvard Medical School

Board Certifications: Gastroenterology, Allergy

Medical Licenses: Massachusetts, Maine, New Hampshire

NPI # 1447328711

Patient Reviews

★★★★★October 7, 2020 Mariam A. Verified patient

Excellent physician! Very intelligent and listens. Great staff! Wonderful office

★★★★★Less than 6 months ago Violet V.Verified patient

Very pleased. He took time to explain everything including the steps we would be taking in the future.

★★★★★November 12, 2019 Tonya S. Verified patient

His practice was clean, responsive and Dr. Leung was very informative throughout the appointments. I would recommend.

Publications

Dr. Leung recent publications:
1.- Journal of Allergy and Clinical Immunology. 2024 Sep 01
2.- Clin Gastroenterol Hepatol. 2021 Jan 22;S1542-3565(21)00075-6.
3.- N Engl J Med 2020; 383:1624-1634
4.- J Pediatr Gastroenterol Nutr 2020 Oct;71(4):524-529
5.- J Allergy Clin Immunol 2020 Jun;145(6):1629-1640.e4
6.- Gastroenterology 2020;159:20–25

See more publications

Research + Clinical Trials

Dr. Leung’s Laboratory

See recent clinical trials

Community Leadership

Chair, Board of Directors, Kwong Kow Chinese School, Boston, MA

Chair, Advisory Board, Wang YMCA, Boston, MA

Medical Director, Kwong Kow Chinese School, Boston, MA

Member, Board of Directors, Chinatown Neighborhood Council, Boston, MA

News media

See recent news

Honors

2023-2024, Findatopdoc.com - Top Gastroenterologist, Allergist and Immunologist

2021-2024, Threebestrated.com - Top 3 Immunologists in Boston

2021-2024, Threebestrated.com - Top 3 Gastroenterologists in Boston

2015, American College of Gastroenterology - SCOPY Award for Best Foreign Language Video, “Chinese Colonoscopy Prep”

2013, FIT Travel Scholarship for the 2013 AAAAI Annual Meeting

2012, FIT Travel Scholarship for the 2012 AAAAI Annual Meeting

2011, First authored manuscript “Colchicine plus ursodiol versus methotrexate plus ursodiol in the treatment of primary biliary cirrhosis: Twenty year follow-up" has been chosen as a top editor’s pick in Clinical Gastroenterology and Hepatology and is featured in GI & Hepatology News, the official newspaper of AGA Institute.

2010, Digestive Diseases Week Poster of Distinction

2010, American Associations of Immunologists Trainee Travel Award

2010, American Associations of Immunologists Block Symposium presentation

2010, Fellowship2Leadership Gastroenterology/Hepatology Fellows' Travel Award

2008, American Gastroenterological Association Academic Skills Workshop Travel Award

2008, Choosing a Career in Academic Gastroenterology and Hepatology Conference Travel Award

2001, National Institutes of Health Summer Internship in Biomedical Research Award

1999, National Science Foundation Summer Internship in Bioengineering Research Award

1999, Phi Kappa Phi Honor Society

1999, Tau Beta Pi Honor Engineering Society

1999, Golden Key National Honor Society

1999, James B. Angell Scholar Award, Dean’s List, Class Honors

1998, James B. Angell Scholar Award, Dean’s List, Class Honors

1997, William J. Branstrom Freshman Prize

1997, James B. Angell Scholar Award, Dean’s List, Class Honors

Professional Memberships

Phi Kappa Phi Honor Society

Tau Beta Pi Honor Engineering Society

Golden Key National Honor Society

OXE Chemical Engineering Honor Society

American Institution of Chemical Engineering Association

American Medical Association

American Family Physicians

American College of Physicians

United Asian American Medical Student Association

American Association of Immunologists

American Gastroenterological Association

American College of Gastroenterology

The Massachusetts Medical Society

New England Endoscopy Society

Society for Mucosal Immunology

American Academy of Allergy Asthma and Immunology

American College of Allergy, Asthma and Immunology

✓ Accepting New Patients

Biography

Ivan Lee, MD, PhD received his medical & graduate school training at UT Southwestern Medical Center as part of the Medical Scientist Training Program. He completed his pediatrics residency at Lucile Packard Children's Hospital Stanford followed by an Allergy/Immunology fellowship at Stanford University Medical Center. He worked as an Attending Physician/Faculty at Stanford prior to moving to Massachusetts. Dr. Lee is a translational physician-scientist with an interest in allergies and infectious diseases. He has co-authored numerous high-impact peer-reviewed manuscripts in Cell and Nature press journals as well as allergy/immunology journals.

Overview

Programs + Specialties: Allergy/Immunology (Pediatrics & Adults)

Training + Education: University of Texas Southwestern Medical Center; Stanford University Medical Center/Lucile Packard Children's Hospital Stanford

Board Certifications: Allergy/Immunology; Pediatrics

Medical Licenses: Massachusetts, California

Publications

Recent first or corresponding author publications:
1.- Nature Communications. 2020 Oct 28;11(1):5453
2.- Cell Reports Medicine. 2021 Oct 19;2(10):100421
3.- Cell Metabolism. 2021 May 18:S1550-4131(21)00230- 8.
4.- Annals of Allergy, Asthma & Immunology. 2020 Jun;124(6):536-541
5.- Pediatr Allergy and Immunology. 2017 Nov;28(7):619-627

See more publications

News media

2021, "Coronavirus likely infects upper airway cells first; blood pressure drugs unlikely to increase risk"

2021, "Why are smokers at an increased risk for severe COVID-19?"

Honors

2019 & 2020 American Academy of Allergy, Asthma & Immunology Fellow-In-Training Travel Scholarship

2019 & 2020 Jeffrey Modell Foundation WinMD Grant

2019 American Academy of Allergy, Asthma & Immunology National Allergy Bureau Scholarship for Basic Aeroallergen Course

2019 American College of Allergy, Asthma and Immunology Fellow in Training Travel Grant for the Patch Test Training Workshop Advanced Course

2018 & 2019 American College of Allergy, Asthma and Immunology Fellow in Training Travel Grant Award

2018 Stanford Pediatrics Resident Research Presentation Award

2017-2018 Honor Roll for Clinical Teaching, Department of Pediatrics

2016-2017 Honor Roll for Clinical Teaching, Department of Pediatrics

2015 American Academy of Allergy, Asthma, and Immunology Chrysalis Project Award

2003-2007 The Welch Foundation Scholarship

2003-2007 UT Arlington President’s Charter Scholarship

2007 UT Arlington John T. Murchison Scholarship

2006 & 2007 UT Arlington Laurence E. Baker Memorial Scholarship

2005 & 2006 UT Arlington Luther Wayne Odom Scholarship

2006 UT Southwestern Summer Undergraduate Research Fellowship (SURF)

2006 UT Arlington Science Constituency Council Outstanding Officer Award

2006 UT Arlington Carolyn A. Barros Founding Dean Scholarship

2004 UT Arlington Presidential Leadership Scholarship

2004 UT Arlington Honors College Undergraduate Research Assistantship

2004 UT Arlington Robert F. Francis Award for the Outstanding Sophomore of the Year

2003 Arlington Memorial Hospital Volunteer Guild Scholarship

Professional Memberships

American Academy of Allergy, Asthma & Immunology

American College of Allergy, Asthma & Immunology

American Academy of Pediatrics

American Contact Dermatitis Society

European Academy of Allergy and Clinical Immunology

Clinical Immunology Society

Languages spoken

English, Mandarin Chinese, conversational Japanese

✓ Accepting New Patients

Biography

Ryan Din MD completed his medical degree from Harvard Medical School, internal medicine residency from NYU Langone and Bellevue Hospital in New York City, and fellowship in Allergy and Immunology from the University of Michigan. He is also involved in laboratory research in immunology at Harvard. He has co-authored numerous scientific publications and has expertise in mast cell diseases and allergic dermatology.

Languages: Spanish, English

Overview

Programs + Specialties: Allergy & Immunology
Training + Education: Harvard School of Medicine, NYU Langone Health, University of Michigan

✓ Accepting New Patients

As primary care physician and family medicine specialist, Dr. Ankur Patel works in collaboration, but independently from BFAC.
Dr. Ankur Patel practices at his clinic, Boston Primary Care.

Biography

Ankur Patel MD attended medical school at Tufts University School of Medicine and completed his residency in Maine. He is Board certified in Family Medicine and has extensive experience within adult and pediatric care. He enjoys being an active member of the local community and encourages open communication with patients.

Overview

Programs + Specialties: Family Medicine, Primary care
Training + Education: Tufts University School of Medicine; Central Maine Medical Center

Patient Reviews

★★★★★November 30, 2020 Evan D.Verified patient

Very impressed with Dr. Patel. He's very personable, knowledgeable, and goes above and beyond when identifying and treating.

★★★★★January 2, 202 0Christopher B.

Dr. Patel was super welcoming, incredibly bright, and very comforting when I visited the office. Would highly recommend!

★★★★★September 10, 2019 Hannah C

Dr. Patel has a great bedside manner. He was very caring and professional. I would highly recommend him to anyone.

✓ Accepting New Patients

Biography

Jaclyn’s goal is to help patients establish a healthy relationship with food in the setting of restrictive diets to treat food allergies and food intolerances. Jaclyn believes that all patients no matter what their dietary restrictions or health and wellness goals are should be able to have a healthy relationship with food. She works tirelessly to motivate her patients to reach their health goals and feel their best. She is especially passionate about helping her patients with Irritable Bowel Syndrome (IBS) perfect their dietary habits to eliminate the symptoms of bloating, pain, and irregular bowel movements. In her free time, Jaclyn loves to develop recipes for her patients, travel and try new foods, and practice yoga.

Jaclyn earned her Bachelor of Science in Nutrition and Dietetics from University of Rhode Island. She then went on to earn her master’s in public health from University of Massachusetts Lowell. She started working with Dr. Leung during her dietetic internship which she completed at University of Massachusetts Lowell while working towards her MPH. She is registered with the commission on dietetic registration and is a licensed dietitian nutritionist in the state of Massachusetts.

Overview

Programs + Specialties:
1.- Registered Dietitian with the Commission on Dietetic Registration
2.- Licensed Dietitian Nutritionist with the state of Massachusetts
Training + Education:
1.- University of Rhode Island - Bachelor of Science in Nutrition and Dietetics
2.- University of Massachusetts Lowell - Masters in Public Health & Dietetic Internship

University of Massachusetts Lowell - Masters in Public Health & Dietetic Internship