Our Team
John Leung, MD, AGAF, FACAAI
★★★★★4.78 out of 5 (474 Ratings)
✓ Accepting New Patients
Titles: Founder and CEO, USCIS authorized Civil Surgeon
Clinical Interests: Eosinophilic esophagitis, Eczema, IBS/bloating, IBD, Eosinophilic GI Diseases, Mast Cell GI Diseases & MCAS, Food allergy, Seasonal allergy
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 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
Research + 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
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
Ivan Lee, MD, PhD
✓ Accepting New Patients
Titles: Allergist & Immunologist; Pediatrician
Clinical Interests: Asthma, Seasonal allergy, Hives, Eczema, Drug allergy, Angioedema, Contact dermatitis, Nasal polyps
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
News media
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
Ryan Din, MD
✓ Accepting New Patients
Titles: Allergist & Immunologist
Clinical Interests: Mast Cell Activation Syndrome
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
Ankur Patel, MD
✓ 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.
Titles: Family medicine specialist, Primary care physician
Departments: 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.
Omkar Vaidya, MD
✓ Accepting New Patients
Titles: Nephrology specialist, Internal Medicine, and Critical Care physician
Departments: Nephrology, Internal Medicine, Critical Care
Biography
Omkar Vaidya MD completed his residency at The University of Missouri Kansas City School and fellowship at UT Southwestern Medical Center. He is Board certified in Nephrology, Critical Care, and Internal Medicine. He has extensive experience within adult and pediatric care. He is passionate about integrating technology to improve patient care. He thinks it is very rewarding to help patients gain the access to the specialties they need.
Overview
Programs + Specialties: Nephrology, Crtical Care, Internal Medicine
Training + Education: The University of Missouri Kansas City School; UT Southwestern Medical Center
Jaclyn Quinlan
✓ Accepting New Patients
Titles: Registered Dietitian
Departments: Nutrition
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
Our Staff
-
Leeon Bacchus
Boston University
Practice Manager
857-370-7198
teamf@bfac.org -
Rachel Solecki
Duke University
Director of Research
857-370-7200
research@bfac.org -
Shibani Mallik
Duke University
Clinical Assistant
850-370-7199
teamk@bfac.org -
Madison Headen
University of North Carolina at Chapel Hill
Clinical Assistant
Clinical Research Coordinator
617-871-0844
teamh@bfac.org -
Stanley Liu
Boston University
Clinical Assistant
617-804-6767
teamc@bfac.org -
Bridget O'Hearn
Tufts University
Clinical Assistant
617-871-9799
teamm@bfac.org -
Sawyer Fleishman
Vanderbilt University
Clinical Assistant
857-370-7194
teame@bfac.org -
Sriya Dhupati
Duke University
Clinical Assistant
857-209-4513
teaml@bfac.org -
Aparna Kumar
University of California, Berkeley
Clinical Assistant
617-902-0317
teamp@bfac.org -
Maggie Torstrick
University of Southern California
Clinical Assistant
508-794-9203
teamn@bfac.org -
Matt Sandifer
Johns Hopkins University
Clinical Assistant
857-370-7196
teamg@bfac.org -
Lina Fikri
Tufts University
Clinical Assistant
774-277-8351
teamb@bfac.org