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Dr. Mark Chu, DO

Gastroenterologist

Professional statement

Dr. Mark Chu attended The Bronx High School of Science and NYU before receiving his medical degree from New York College of Osteopathic Medicine. Dr. Chu completed his Residency at Beth Israel Medical Center and his Fellowship in Gastroenterology at New York Hospital Center of Queens. After his training, he joined his family's medical practice in New York City's Chinatown. Dr. Chu is involved in the teaching of physicians training in gastroenterology and has received numerous teaching awards from Mt Sinai-Beth Israel Medical Center. Dr. Chu is fluent in English, Spanish, Mandarin and Cantonese. He performs endoscopic procedures in New York State accredited facilities with modern HD equipment and highly trained staff. He currently has offices in Manhattan, Queens and Brooklyn capable of performing these exams. Please contact our offices with any questions regarding appointments and availability.

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Specialties

  • Gastroenterologist

Practice names

Hospital affiliations

  • Beth Israel Medical Center - Petrie Division

Board certifications

  • Gastroenterology (Internal Medicine)

Education and training

  • Beth Israel Medical Center (Residency)
  • Medical School - New York Institute of Technology, New York College of Osteopathic Medicine, Doctor of Osteopathic Medicine
  • New York Hospital Queens, Fellowship in Gastroenterology

Professional memberships

  • American Medical Association

Zocdoc awards

See you again
Scheduling hero

Languages spoken

  • Chinese (Cantonese)
  • English
  • Spanish

Provider's gender

Male

NPI number

1588755565

Office locations

Downtown G.I.

5610 7th Avenue

Brooklyn, NY 11220

Downtown G.I.

17 Elizabeth Street, Suite 608

New York, NY 10013

Downtown G.I.

20 East 46th Street, Suite 202

New York, NY 10017

Downtown G.I.

39-16 Prince Street, Suite 354

Flushing, NY 11354

Patient reviews
All reviews have been submitted by patients after seeing the provider. For more information, check out our Patient Knowledge Base.
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Professional, thorough and takes time to listen. He helped me and put me at ease. And I’m in love with his entire staff...I think quite possibly, literally.
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Professional and friendly
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Very nice doctor ????
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He is professional
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Very attentive and informative! I highly recommend!
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I saw four different medical professionals that day. They were all located in close proximity to one another. His visit, Dr. Chu- was the most comfortable from the moment I stepped in his office. I am currently recommending everyone I'm my office and My Husband. Pleasant visit.
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He made my dreaded first colonoscopy as pleasant as it could be. Kind, caring and extremely professional
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Very nice office. No wait at all. Very productive and informative appointment!
More than 1 year ago
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Very clear and detailed in explaining results and next steps.
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I had just one time visit with Dr. Chu for my acid reflux. The secretaries in midtown office are not so friend, especially the older Chinese lady. She was talking loudly to her colleague about me in a negative tone rightin front of me like i did not exist. The rude behavior had turned me off almost away. I still visited Dr. Chu. He seems to be professional and has in-depth knowledge. But I did not sense compassionate character of him. I need a warmer doctor who sincerely cares about his patient and knows what to say to put his patient at easy.
More than 1 year ago
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He is an attentive listener. He was able to give me a screening the same week, a diagnose, and prescription. Wow!!!
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Dr Chu put me at ease and made me feel I could confide in him in his experience and know how. he explained each step of the procedure in a clear calm way! Very helpful staff
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Dr. Chu is very thorough and conservative about his treatment and takes his time addressing your concerns.
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Accepts Aetna Elect Open Choice insurance for consultation, however, charges out of pocket (doesn't except insurance) for laboratory tests.
More than 1 year ago
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Dr Chu was very attentive and listened thoroughly to my concerns. He advised me of what he believed my issues were and also advised me of the process to investigate. He is a keeper! You don't find may physicians (regardless ofspecialty) that listen to the patient, look the patient in the eye and check into the patient's concerns BEFORE writing a prescription.
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It was my first visit and I arrived late but I was still seen, the staff and Doctor was very understanding. He listened to my concerns and medical issues reassured me made me feel at ease. Looking forward to my next visit and treatment plan.
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I have known Dr. Mark Chu since 2003. He is an excellent doctor. I would recommend him without reservation. KPS
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Dr. Mark Chu really took his time explaining things and helping me understand the problem that I went in to see him for. He is very knowledgeable with amazing bedside manner. I feel very lucky to have found him. Thank you ZocDoc!
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Fantastic doctor!!!! :-) He was very thorough in our consultation.
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Great, man. A good start.
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Dr. Chu is honestly the best doctor I've ever been to. He takes time to understand your problems, and then helps put you on a path to get better. He'll always call/write you back and do extensive research in finding you a specialist if you need it.
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Great and knowledgable doctor!
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Great , took time to explain everything and was very proffessional
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Great doctor. Did a wonderful job of making a very awkward topic so incredibly not awkward.
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Great doctor!
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Mark is professional and I appreciated his honest and straightforward approach to his work.
More than 1 year ago
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Great Doctor! understanding, thoughtful and professional.
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Very nice, informative
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Dr. Chu was very knowledgeable and thorough in his diagnosis. He also spoke to me in a manner that I could understand given his specialty. I have a follow up appt with him in the upcoming weeks.
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Excellent Doctor, explained everything and answered my questions. Kind and caring.
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Dr Chu was an understanding doctor
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Dr. Chu was great, he explained everything in detial and asked me several times if I had any other questions. I would definitely recommend him to friends.
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Very attentive and thorough. I never felt rushed and felt like Dr. Chu was putting together a very complete picture of what was going on with me. He explained everything that he thought was going on, lifestyle factors, and how wewould move forward with testing and treatment. His staff was great and got me appointments that I needed and always called back when they said they would.
More than 1 year ago
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Thoughtful doctor who looks at the big picture instead of just ordering batteries of unnecessary tests. Cares about patients and remembers details from one visit to the next.
More than 1 year ago
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Great doctor!
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Good doc. He takes time to answer to answer all your question to your satisifcation.
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Excellent.doctor. Made me very comfortable and answered all my questions.
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He is a really nice guy, he made me feel comfortable talking about all those GI problems.. and seems like he really cared about me :) I recommend him!
More than 1 year ago
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He was very nice and professional. The office was fairly new and spacious. Did not have to wait long at all to see him either! Definitely recommended!
More than 1 year ago
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I'm so glad I picked him! I laughed & I cried during the appointment and he made me feel great during both instances. I completely trust look into my stomach & diagnose me. I was so relieved when I left. Theonly thing that he may have lost points for had nothing to do with him. The next day I had to schedule an appt for a test but I never received that phone call. This now overshadows much of his qualities, but I still do trust his knowledge.
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He was easy to speak to and answered all of my questions!
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Ended up having to refer me to a colo-rectal surgeon, but was really wonderful about providing a possible diagnosis and offering his help in getting me to the right people. Very kind, very professional. I really appreciated Dr. Chu's manner.
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Dr. Chu is the best gastrodoc in New York City. Thanks again, ZocDoc. Because of you, I have become a patient of Dr. Ernest Isaacson, Dr. Connie Liu and now Dr. Chu. You are batting 1,000.
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Good explanation of proposed course of treatment and clarity on what he knew and didnt know. Feel confident that I am in good hands.
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Dr. Chu is very professional and thorough. He was comprehensive in his explanation of possible causes and recommended treatment. Great friendly medical staff and comfortable setting.
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Less than 1 year ago
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