Stephen Y. Chang, MD

4.9

1364 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Gastroenterology

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Practice Website

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:: MD, University of Wisconsin Madison School of Medicine - 1999
Residency:: Beth Israel Deaconess Medical Center - 2002
Fellowships:: McGaw Medical Center of Northwestern University - 2005

Board Certifications

American Board of Internal Medicine/Gastroenterology - Gastroenterology (Certified)

Faculty Profile

Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage Hospital

Northwestern Memorial Hospital

Ratings and Reviews

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Overall Rating

4.9

4.9

1364 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 26, 2026

5.0

He is one of the best in his field.

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February 24, 2026

5.0

Very nice, smart. Took time & listened to me.

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February 23, 2026

5.0

Dr Chang a total professional. Very easy to talk with.

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February 22, 2026

5.0

Dr. Stephen Y. Chang was excellent. He is very knowledgeable, gets straight to the point, and answers questions clearly and directly. He explained everything in a way that was easy to understand and made the visit efficient and reassuring. I really appreciated his straightforward and professional approach.

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February 20, 2026

5.0

Dr. Chang is great ! You do not find to many Drs with his bedside manners .

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February 17, 2026

5.0

Dr. Chang is very compassionate and patient, taking time to ensure any questions are addressed. He also gives a detailed explanation about your condition and treatment plan. He is definitely one of the best physicians I've ever seen!!

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February 10, 2026

5.0

Explained the procedure thoroughly and very timely follow up care.

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February 10, 2026

5.0

Very punctual, very attentive, made me feel comfortable.

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February 09, 2026

5.0

Very happy with his overall performance. Prompt, efficient, and good communication.

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February 09, 2026

5.0

dr chang is BEYOND caring, knowledgeable and professional

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February 09, 2026

5.0

Very experience professional, he has a human touch that is important.

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February 06, 2026

5.0

He explain thing to you step by step where can understand

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February 05, 2026

5.0

Dr.Chang is a great doctor! He is very kind and Professional.

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January 30, 2026

5.0

He listens and makes you part of the process.

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January 29, 2026

5.0

Very reassuring and strong bedside manner.

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January 28, 2026

5.0

Dr Chang is amazing., very caring, respectful and kind person. Welcome with smile.

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January 26, 2026

5.0

Very friendly and professional

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January 22, 2026

5.0

Very kind, willing to answer any questions you have. Very reassuring

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January 19, 2026

5.0

Dr Chang is a wonderful doctor. He explains clearly, and listens intently. I would highly recommend him to my friends.

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January 19, 2026

5.0

He listened and asked questions to help me explain my concerns

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January 19, 2026

5.0

Excellent Physician , very patient and kind when I told me my concerns.

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January 08, 2026

5.0

He is caring, an avid listener and makes me feel heard and explores all options you leave feeling you are in good hands

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January 06, 2026

5.0

He explained the questions I asked him.

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December 29, 2025

5.0

he is a highly professional doctor with an easy demeanor and great care

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December 29, 2025

5.0

Very professional and communicated everything with clarifications.

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December 27, 2025

5.0

He was very friendly, thorough and intelligent. He explained the procedure clearly and followed up after the procedure as well as via MyChart.

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December 19, 2025

5.0

Dr. Stephen Chang and his staff' in my own experience were very good, respectful, mindful to me, the patient and my husband who was let to stay with me during the preparation of the procedure like injecting the needle for the IV because I was scared! They delivered fast service! The explanations of the procedure was throughly. And that made me feel relaxed. We did not wait for a long time at the waiting room. When they say the come home at At a certain time because the procedure is at this time! We were surprised when i was called at the appointment time!! Kudos to Dr. Stephen Chang and his Crew for a service well performed! We give them 5 stars performance.

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December 16, 2025

5.0

Did a great job explaining things.

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December 15, 2025

5.0

My doctor is great- listens, is extremely knowledgeable and explains things well. Very caring.

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December 09, 2025

5.0

Dr Chang was friendly. He answered all of my questions and took his time with me.

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November 30, 2025

5.0

Dr Chang puts you at ease, listens and gave me several strategies to manage my situation. He is thorough and explains things clearly.

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November 28, 2025

5.0

Kind and knowledgeable doctor!

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November 24, 2025

4.0

First experience here too, although Dr. Chang was quite thorough with the exam.

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November 24, 2025

5.0

Very professional and explained everything before and after my procedure.

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November 24, 2025

5.0

Listened and asked good questions

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November 21, 2025

5.0

100.good

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November 13, 2025

5.0

I have seen Dr Chang for years. Yes, I'll recommend him.

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November 12, 2025

5.0

Dr Chang was polite, respectful, and based on our conversations gave a informative insight into my condition and taking next solution steps.

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November 10, 2025

5.0

Dr. Chang is extremely knowledgeable and answered my questions thoroughly.

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November 10, 2025

5.0

He is very thorough, kind, and his communicates well. I trust him with my care.

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November 06, 2025

5.0

highly skilled

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November 05, 2025

5.0

Dr Chang was very attentive and explained everything well.

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October 31, 2025

5.0

Dr. Chang has a very nice bedside manner. He patiently and respectfully explains the procedure, its risks and what to expect. He answers all questions. Procedure went very well with no complications.

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October 27, 2025

5.0

Dr. Chang took the time to review the procedure with me and went over the results after the procedure was complete.

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October 27, 2025

5.0

Thorough, listening, answering, advising, following up issues. Top patiences on top of professional caring.

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October 27, 2025

5.0

Listened, shared, asked Did not over prescribe - layed out a clear path ahead to learn more

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October 23, 2025

5.0

He is the best doctor ever he is genuinely concerned very patient and knowledgeable kind spirit. Not rushing you out.

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October 21, 2025

5.0

Great bedside manner. Explains everything clearly and explains your options. Very professional.

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October 20, 2025

5.0

Excellent

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October 20, 2025

5.0

Experienced calm Assured demeanor Explain procedure and results

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October 20, 2025

5.0

Dr Chang came in shortly following my check in with the nurse. He is very friendly and easy to talk to. He made me feel at ease. We reviewed my history and he asked if I had any questions or if I had anything to add that may not have been in the notes. We even shared some funny stories about colonoscopies. Following an examination, we discussed scheduling a colonoscopy for me. Dr Chang had his nurse come in to schedule the procedure. She too was friendly and the scheduling was done with ease. She provided me with the documentation needed to complete the preparation for the procedure. I left feeling good about my appointment with Dr Chang today.

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October 18, 2025

5.0

He listens.

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October 15, 2025

5.0

Great bedside manner, very easy to talk to

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October 14, 2025

5.0

Very nice, knowledgeable, and easy to talk to. Made me feel comfortable. Very professional !!!

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October 13, 2025

5.0

Thoughtful, patient, thorough, listened.

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October 13, 2025

5.0

He is the physician that had done my procedure previously I was always pleased with results thank God he was available for this last one

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October 13, 2025

5.0

Excellent communication.

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October 13, 2025

5.0

Liked him

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October 12, 2025

5.0

He is an excellent doctor

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October 10, 2025

5.0

Very caring and Great bedside manners

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October 02, 2025

5.0

Very good discussion and helpful to make decisions! Extremely trustworthy!

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October 01, 2025

5.0

See above- smart, caring, warm- just makes you feel like you are getting the best care

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September 30, 2025

5.0

I liked him. He was a Sr. Doc and answered all my questions

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September 30, 2025

5.0

Very friendly and kind.

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September 27, 2025

5.0

Dr. Chang was very knowledgeable/skillfull

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September 26, 2025

5.0

Great bedside manner and he explained how the process would work.

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September 26, 2025

5.0

Thoughtful and to the point.

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September 25, 2025

5.0

Dr Chang makes me feel comfortable as well as included in my health care. The nurses that work with him readily responded to MyChart messages.

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September 19, 2025

5.0

Very courteous and took time to answer my questions.

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September 19, 2025

5.0

Dr Chang is courteous, compassionate, and inspires confidence in his skill and knowledge of GI health and wellness.

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September 17, 2025

5.0

Great.

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September 16, 2025

5.0

Very professional, but personable.

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September 15, 2025

5.0

Listens. Engaged. Answered questions. Provided clear information.

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September 13, 2025

5.0

Dr. Chang is a great doctor, from the first visit to my procedure and after, he was so professional,respectful,informative and patient. He answered all my questions with proficiency and made me feel comfortable. He was great.

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September 11, 2025

5.0

Excellent Doctor

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September 10, 2025

5.0

Everything was very well explained.

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September 08, 2025

5.0

Thorough. Good bedside manner. Caring. Easy to talk to. Knowledgeable. Helpful in emergencies.

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September 08, 2025

5.0

Knowledgeable and very kind

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September 07, 2025

5.0

Awesome Doctor.

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September 07, 2025

5.0

I appreciated his answers to my questions about the procedure and his clear explanations before and after.

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September 06, 2025

5.0

Explained procedure well and was aware of my health status

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September 04, 2025

5.0

He is very knowledgeable and I felt very comfortable with him.

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September 03, 2025

5.0

Very personable. Knows how to talk to you and not at you. Explains everything to your understanding.

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September 01, 2025

5.0

I felt like Dr Chang really listened to me, took my issues seriously, and talked to me. He was nice, interested, personable ... In general just great.

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September 01, 2025

5.0

He is excellent....very caring and really listen to his patients.

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August 27, 2025

5.0

Didn't rush me and explained everything.

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August 27, 2025

5.0

he listens and gives a full answer to all of my questions He seems to be very reliable.

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August 26, 2025

5.0

Extremely informative and friendly

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August 22, 2025

5.0

Good communication.

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August 21, 2025

5.0

Dr Chang, didn't appear to rush into anything. He told me everything about C.diff and also what to do if it did recur. How I should call him and he'll take care of it right away, unlike the ID doctor who till today have not checked to see how I am doing I wish all the doctors at Nothwestern are like him

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August 21, 2025

5.0

Dr. Chang's thoroughness is unparalleled!

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August 21, 2025

5.0

Dr Chang I am recommending my husband to see as well. We used to have Dr [last name] but no longer does colonoscopy's

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August 21, 2025

5.0

Very attentive !

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August 20, 2025

5.0

Personable, helpful, knowledgable. Answered all my questions, gave me good recommendations and set up next steps for my care.

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August 16, 2025

5.0

He's an amazing doctor, so easy to talk to and really listens to my concerns and fears.

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August 13, 2025

5.0

He really cares about his patients and he explains really good

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August 13, 2025

5.0

Helpful, professional, and kind

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August 12, 2025

5.0

Great communication

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August 12, 2025

5.0

He is the BEST!!

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August 11, 2025

5.0

Explained everything and was patient

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Disclosures

Stephen Y. Chang, MD reported no external professional relationships for calendar year 2024.

External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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