Ofer Z. Fass, MD

5.0

112 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Gastroenterology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:: MD, Harvard Medical School - 2017
Residency:: NYU Grossman School of Medicine - 2020
Fellowships:: Stanford Health Care-Sponsored Stanford University - 2024

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)
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:: Northwestern Memorial Hospital

Ratings and Reviews

At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.

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Overall Rating

5.0

5.0

112 Ratings

Reviews from Patients

36 Reviews

Reviews from Patients

36 Reviews

December 04, 2025

5.0

He is a good listener, is very smart and knowledgeable. A very good young Dr.

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December 04, 2025

5.0

He answers all questions,and does not rush you .he seems. very caring.

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December 01, 2025

5.0

He is extremely patient in listening to what my many concern's were concerning Dysphasia & I felt very comfortable with a better understanding of & Dr. Fass saw to it in getting me in much sooner, was greatly appreciated!

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November 20, 2025

5.0

As I said previously, he was very professional and answered all my questions and concerns. Didn't rush you through the visit.

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November 20, 2025

5.0

He is a GEM- Northwestern Medicine is lucky to have him _answered all my questions was very concise _easy to understand with no textbook answers like some doctors used in my past. _was really worried at first walking in _after was relieved and felt a thousand times better.I have a lot of confidence in my doctors and care at Northwestern Medicine.

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November 10, 2025

5.0

For Dr Fass, I give a 10 plus. He is thorough, knowledgeable, pleasant, professional and timely.

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November 06, 2025

5.0

He took the time to inquire and listen to my issues and concern

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November 04, 2025

4.0

MD was informative!

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November 03, 2025

5.0

Explained everything.

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October 30, 2025

5.0

Very nice, very thorough in his explanations.

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October 23, 2025

5.0

Dr. Fass was very informative He has wonderful bedside manners and did not rush us

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October 17, 2025

5.0

great response to the work provided with simple clear explanation of the results.

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October 16, 2025

5.0

Knowledgeable and easy to discuss / understand

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October 14, 2025

5.0

Dr. Fass was great at explaining the procedure and my test results.

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October 13, 2025

5.0

Very personal and outlined steps before my procedure. Then was very clear on findings and next steps.

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October 13, 2025

5.0

He told me what and he was doing it. He did it. I left

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October 08, 2025

5.0

He cares

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October 03, 2025

5.0

He cares

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October 02, 2025

5.0

Very easy to speak with. Felt like his priority was how to get me to my best health possible.

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October 02, 2025

5.0

He listened to my concerns and explained things in a way I could understand.

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September 30, 2025

5.0

Dr. Fass has an approachable, caring, and compassionate demeanor.

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September 30, 2025

5.0

I feel Dr. Fass is very knowledgeable in the field of Gastrointestinal & digestive problem's & after he reviewed some of my past procedure's & history, feel he understand's in going forward with my need's for help with & hope to fully determine & get to the cause of my problem's!

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September 23, 2025

5.0

Kind, skilled, problem solver

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September 22, 2025

5.0

Dr Fass communicated very well and took the time needed to explain. He engendered confidence which helped me relax.

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September 06, 2025

5.0

Dr. Fass is very nice and reassuring. I have already recommended him to others.

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September 04, 2025

5.0

A great visit- his interaction with me was first class- we had a great chat and look forward to working with him

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September 02, 2025

5.0

Answered all my questions questions.seemed very knowledgeable and did d not rush you.

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August 21, 2025

5.0

For the reasons above and his bedside manner.

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August 12, 2025

5.0

This doctor demonstrated excellent professionalism. Treats the patient like a person not a number.

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July 11, 2025

5.0

Dr. Fass has some of the best bedside manner I've seen yet. Dr. Fass was patient and explained everything fully. Willing to listen and comfort the patient. I received excellent care from this doctor.

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July 07, 2025

4.0

He's thorough

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June 24, 2025

5.0

He was responsible and knowledgeable and listened to my concerns made time to see me within days of our speaking.

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June 23, 2025

5.0

Very professional and caring

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May 08, 2025

5.0

Very knowledgable and professional Dr as well as a good listener. Seems to care about his patients.

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May 05, 2025

5.0

The doctor is very kind and explains everything you have very well and gives you very good advice on what you should do with what you have.

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May 04, 2025

5.0

He listens and has good judgment.

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Disclosures

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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