Book an appointment for free

Choose your insurance
Loading...
Choose your insurance
Loading...
No Results
What's the reason for your visit?
Gastroenterology Consultation
65 Harrison Avenue, Suite 201, Boston, MA, 02111

Qualifications and Experience

Education

Hospital Affiliations

Languages Spoken

Board Certifications

Professional Memberships

Awards and Publications

In-Network Insurances

Specialties

Professional Statement

*PLEASE CALL OUR CLINIC BEFORE YOUR APPOINTMENT TO CONFIRM INFORMATION, INCLUDING INSURANCE ID *IF THIS IS YOUR FIRST APPOINTMENT WITH DR. JOHN LEUNG, PLEASE REMAIN OFF OF ALL ORAL ANTI-HISTAMINES 7 DAYS PRIOR TO YOUR APPOINTMENT. These include: Benadryl, Loratadine, Allegra, Claritin, Alavert, Zyrtec, Zantac, Singulair, and all other oral anti-histamines. John Leung, MD is the founding physician of Boston Food Allergy Center, director of the Food Allergy Center at Tufts Medical Center and co-director of the Pediatric Food Allergy Center at Floating Hospital for Children. He is the first US-trained physician triple board-certified in Allergy/ Immunology, Gastroenterology and Internal Medicine. Dr. Leung attended medical school at the University of Michigan Medical School and completed his internal medicine residency at University of Iowa Hospitals and Clinics. He then completed a 4-year clinical/research Gastroenterology fellowship at Tufts Medical Center, followed by an Allergy/Immunology fellowship at Massachusetts General Hospital/Harvard Medical School. Dr. Leung is the site principal investigator for multiple NIH-funded and pharmaceutical sponsored studies. He is an assistant professor in the Department of Medicine and Department of Pediatrics at Tufts University, an adjunct faculty in Immunology, an affiliated faculty of Tufts Institute for Innovation, and a nominating committee number of Obesity, Metabolism & Nutrition section of the American Gastroenterology Association Institute Council. He has coauthored numerous peer-reviewed manuscripts, scientific abstracts, book chapters, and online tutorials. His clinical and research focuses are on eosinophilic esophagitis, gastrointestinal disorders, food & intolerance as well as other allergic/immunologic condition

Zocdoc Awards

Verified Patient Reviews

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

He was amazing! Even though I waited a while it was worth is because only great doctors that actually take time and care for their patients fall behind.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Such a wonderful, kind, caring, and intelligent doctor! Very patient-centric and cares about your needs, desires, family history, etc.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

We love Dr. Leung and his team. He takes care of both my son and husband for different reasons. He is very knowledgeable and up to date on the most advanced practices. He clearly puts thought into his plans for each patient and takes many things into account. For example, I was struck by his awareness that a milk allergy can be socially isolating for a child. The entire team is very friendly. We have spent hours in the office for allergy shots and good challenges and it is always a good experience. My son loves everyone there. Highly reccomend!! Can’t say enough good things about the practice.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I found Dr Leung very knowledgeable and I am hopeful he will be able to help me when other drs have not. His staff are all very friendly and the office felt very organised and showed several short videos which were preprepared and professional. I look forward to my follow up appointment and test results.

Overall Rating
Bedside Manner
Wait Time

Well, not really helpful. Ends up paying several grant for testing fees. Good thing is insurance covers most. But what the testing result will do for you? Nothing. Turns out still need to buy over counter anti-allergy for allergy season. Will not recommend.

Overall Rating
Bedside Manner
Wait Time

My first and only visit to this office. I spoke to Dr Leung’s intern for the most part. The intern was very new and didn’t seem to know much but took a lot of notes. When Dr Leung came in, he listened to the intern repeat what I told him of my history. He didn’t take much time nor did he seem too interested in my concerns. Overall I felt very rushed and the visit was a waste of time. Oh! And I asked for some refills on my prescription and they called in the wrong medication! I can’t return it so I wasted my money on that too!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I had an all around great visit. Dr. Leung and his staff took a lot of time to explain everything very carefully and in detail. I would highly recommend him.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

We love Dr. Leung! So helpful in finding the issue with our daughter's allergies. Great bedside manner. Very friendly knowledgeable and professional!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung has helped me when no one else could.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

He was great. He found out my problem right away! Waiting time should be improved though.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I've seen Dr. Leung for my own issues and have been there with family for their own. He's compassionate, caring, and his entire staff works closely with each other. He has a very good sense of humor and always makes you feel good about any treatment or course of action you may need to take.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung was outstanding. He explained everything needed perfectly and worked towards solutions.

Overall Rating
Bedside Manner
Wait Time

Very thorough examination and comprehensive care solution - both in terms of medication and everyday habits I can change to improve my health.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Excellent - friendly and explained everything very well.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I just love this office-- everyone is joyful and polite and respectful. I never feel rushed with Dr. Leung and he genuinely cares. I really like the assistants too, as well as his intern. I am here for a difficult situation-- eye pain which I believe is tied to gut pain, and Dr. Leung is working with me to try to get to the bottom of 6 years of pain and gut issues. So many offices these days are rushed or rude and this one is not. I am so grateful to have found them!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. John Leung solved skin issues that multiple dermatologists couldn’t. I had been in pain for so long & he listened to everything I had to say & gave me solutions that worked for me. After that he created a timeline of healing for me to solve all of my allergies. He has been so helpful!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung was amazing. He was thorough, transparent and quick! He also laid out several treatment plans and let me choose what was best for me; I'm glad I saw him!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Very professional and very friendly. Understood my issue well and provided good recommendations. Great doctor all around.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Overall great experience. Dr. Leung was very patient explaining EVERYTHING. I asked a ton of quesitons and he answered them all.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

He was very thorough, listened and asked questions to better understand my situation and made me feel comfortable right from the start. He explained things very well. Highly recommend.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung was great. He was very helpful and honest and straight talking. Would highly recommend him. He even folled up with me to make sure I got my perscriptions okay.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Really great experience with Dr. Leung re allergy testing. Would definitely recommend. Very thorough and knowledgeable, and he listened and wants to help.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I was impressed with Dr. Leung. Great office staff to support his practice. Never felt like he was in a hurry, answered all my questions (backed by research and study). I would highly recommend his practice.

Overall Rating
Bedside Manner
Wait Time

Not the best first impression. I came in early, waited, did a Q&A with a nurse, and waited for a while to finally see Dr. Leung, then he did a very quick and general Q&A and concluded that I had IBS. He did not examine my bloated stomach nor explained anything further about IBS itself. Then he gave me 2 options, diet or medicine, I asked what kind of diet, and he said FODMAPs and told his nurse to let me watch a video about it on a tablet and left without saying anything. Then I did 2 tests and was told to come back in a week. I feel like I should have received more explanation and care from Dr. Leung as he rushed through everything. Not the consultation and 5-star professionalism that I expected from reading the reviews.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung was the best, most professional doctor I have encountered In a very long time. He approached me as a whole person not as an individual with symptoms to write a script for. Although we ultimately haven't found an answer to my symptoms, we have ruled out serious things which in itself is very helpful.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I LOVE him! He is very knowledgeable and understanding. I also love how pleasant the receptionist & nurses are... Always smiling & happy to help!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I arrived early because I drove into Boston and did not want to be late. Dr. Leung came over to me and introduced himself. I was signed in early and they did the test thirty minutes earlier than scheduled. Excellent staff members, pleasant and efficient. Dr. Leung's patient areas were neat and clean which I appreciate. I had a very positive visit at The Boston Food Allergy Center. Dr. Leung is an extremely intelligent physician and he is on top of everything in his specialty. I trust his medical diagnosis.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung is amazing! While I was waiting, he came over to introduce himself and say he would be with me as soon as possible. The front desk staff were very friendly as well. When he finally saw me, he was professional and knowledgeable and made sure to let me know I could call/stop in any time. Would recommend him for adults and children!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

He worked very efficiently. I spent only 30mins and he helped for all my needs

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

The entire staff was really friendly! Dr. Leung took the time to walk me through all of my options and answer any questions I had. He was joking with me and really cared about getting me the best treatment that works for me. Highly recommend!

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I had no issues whats-so-ever. The staff was helpful, and Dr. Leung was thorough and engaging. I watched him handle wild, twin 3 years with ease, while I, as a mom, was cringing and feeling badly for the furniture they bounced all over. .

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Excellent bedside manner, calm and unhurried.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung is one of the best physicians I've ever encountered. Always on time, always involved and follows up after of his own choice. My kids are well cared for by him and his team.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung is an excellent doctor. He examines easy, natural fixes prior to jumping to medication. He explains his rationale and is very up front. I would recommend him to anyone.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

inspired confidence in me that whatever is going on with my body, we will fix it! loved transparency and efficiency. A+ all around

Overall Rating
Bedside Manner
Wait Time

The wait time was absolutely ridiculous. I had an 8:30 am appointment, I got there early and didn't see the doctor until 9:45.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

I highly recommend Dr. John Leung for his knowledge of gastro-intestinal concerns he is up to date on treatment plans. Bonus he is kind and fun to have conversations with. His staff is also very sweet and caring. Patrice Mc

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr. Leung & his staff are kind and not stressed. The office seems a little chaotic but runs smoothly. I was surprised by how open the office was and how casual. The doctor is right there. I wanted to ask him another question and I was able to. He's not shut off behind endless corridors and rooms and counters like most typical doctors. The dietician listened intently to me. She was kind and caring. She took detailed notes of what I said.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Knows the I-693 in detail, and spent some time to reassure me about quality control. He understood I was in a hurry, and paid attention to speeding up the process. Receptionist cared a lot about reducing my costs.

(Verified Patient)

Overall Rating
Bedside Manner
Wait Time

Dr Leung is very detailed, professional with a broad base of medical knowledge and experience. He cares about his patients and their detailed medical history. He knows how to access great mefical resouces through his Tufts association. He is highly respected by his peers.

Zocdoc Find an Allergist Massachusetts Boston Allergists Dr. John Leung - MD