Walter W Chan, MD, MPH

Walter W Chan, MD, MPH

Not currently accepting new patients

4.533333 average rating from 102 patient reviews

Specialties

Affiliation

Mass General Brigham

Provider Locations

  • Boston, MA

Education & Training

  • Fellowship: Brigham and Women's Hospital, Gastroenterology, 2010
  • Internship: Barnes-Jewish Hospital/Washington University School of Medicine, Internal Medicine, 2007
  • Medical Education: Washington University, 2004

Board Certifications

  • Gastroenterology, American Board of Internal Medicine

Languages Spoken

  • Chinese
  • Chinese - Mandarin
  • English

Age Group Treated

  • Adults

Patient Feedback

4.533333 average rating from 102 reviews

  • He is phenomenal!

    2026-07-21

  • All he did was look at my tests on the computer and explain 4 methods of treatment. When I asked him if he would do the procedure, he said no. [redacted] And he didn't refer me to anyone else.

    2026-07-18

  • Dr Chan was open to trying a different medicine which has helped immensely,

    2026-07-15

  • I am in Dr. Chan's care for at least several years and I am very happy with the care.

    2026-07-15

  • Hi, Dr. Walter Chan was very helpful. He explained everything to me, all the questions I had and all the options I had, and also went over my medication, and he changed my meds, and he's going to follow up with an MRI that I'm going to have done at the end of this year. So, yes, he was very helpful, very knowledgeable, very polite, very thorough, and I really like Dr. Walter Chan. He explains everything in a very kind and respectful manner, and I really would recommend him to anyone. Thank you so much.

    2026-07-01

  • Dr Chan listens carefully, asks relevant questions, and suggests additional options to address my medical condition.

    2026-07-01

  • He was thoughtful and had me understand my situation I trust him enough to continue seeing him for my colonoscopies

    2026-06-17

  • This doctor seems very confident on the knowledge of my condition.

    2026-06-10

  • Superb physician, very caring and very dedicated.

    2026-06-10

  • He spoke over me and didn't listen to me. He came in with an idea of what my issue was and stuck to it, refusing to hear what I was saying. I left extremely disappointed, as I had waited a long time for this appointment after being thrown around between many fellows before. I also didn't appreciate that there were two fellows shadowing without getting any permission or approval from me, and that he used AI to write the notes.

    2026-05-20

  • Dr. Chan is a great profession, a great doctor, very excellent doctor, diagnostician, and obviously highly respected. I always enjoy meeting with him. [redacted]

    2026-04-22

  • Very attentive listens to concerns always has an answer

    2026-04-02

  • Dr. Chan is clearly an expert in his field and thinks outside the box to find an overall treatment plan that benefits symptoms longterm and not just a temporary fix. I look forward to continue working with him on my conditions.

    2026-03-24

  • The best and most thorough I have seen, and I've seen many. An extremely bright top notch professional.

    2026-03-12

  • My experience with Dr Chan was very good. [redacted]

    2026-03-08

  • Excellent doctor. Very satisfied in his care.

    2026-03-04

  • Has provided my care for many years.

    2026-02-26

  • Dr. Chan was very knowledgeable, very kind. He took his time with me and he actually got on the call a little bit early and answered all my questions. [redacted]

    2026-02-20

  • Dr. Chan is excellent, very knowledgeable and listens well.

    2026-01-29

  • The provider was great [redacted]

    2026-01-28

  • Dr Chan is an excellent physician who truly cares about his patience and listens to what they are saying .

    2026-01-29

  • Dr Chan listens!

    2026-01-23

  • He is a great Dr, listens to you , and speaks to you in a way you can understand him. Great Dr

    2026-01-14

  • Dr Chan is excellent. Also very nice and easy to talk to.

    2026-01-14

  • Dr Chan is well informed and helped me understand not only why I was coughing but also why I shoukd not worry about my recent colonoscopy

    2025-12-15

  • GREAT

    2025-12-11

  • He ran late but I didn't feel rushed

    2025-12-08

  • He is incredibly knowledgeable [redacted]

    2025-11-14

  • Dr Chan knows my case very well.

    2025-11-08

  • I'd like to say that my doctor is excellent at what he does and I appreciate his understanding. I also appreciate how he explains everything thoroughly to me and as well as addresses all of my concerns and helps my mind be at ease with anything that has gone on. He's great. Thank you.

    2025-11-07

  • He's very thorough and uses best practices such as discussing medicines and possibly coming off in the near future as long term use isn't optimal for health

    2025-11-05

  • I have confidence in Dr Chan and am happy to have him as a doctor.

    2025-10-30

  • I appreciate the patience he had dealing with me and my struggles, by not making me feel like it is in my hand. He made me feel safe in knowing i am in good hands.

    2025-10-19

  • Dr Chan is the best. I have been going to him for a long time and I feel comfortable with him.

    2025-10-03

  • I received excellent care.

    2025-09-30

Accepted Insurance

  • Tufts Medicare Preferred
  • Wellpoint
  • Humana
  • Fallon Health
  • TriCare
  • Tufts Health Plan
  • Medicaid ME
  • Blue Cross Blue Shield
  • Medicaid VT
  • Medicare
  • Multiplan
  • Aetna
  • MassHealth
  • Beech Street
  • United Health Care
  • Blue Cross Blue Shield Medicare
  • Senior Whole Health
  • Mass General Brigham Health Plan
  • WellSense
  • Railroad Medicare
  • Cigna
  • Harvard Pilgrim Health Care
  • Medicaid CT
  • Commonwealth Care Alliance
  • Coventry