Measles Information

Education

Medical Education:: MD, University of Cincinnati College of Medicine - 1995
Residency:: McGaw Medical Center of Northwestern University - 1998

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Clinical 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

1211 Ratings

Reviews from Patients

84 Reviews

Reviews from Patients

84 Reviews

April 29, 2025

5.0

Dr. Koo is very engaging and down to earth. Very knowledgeable and friendly. He always follows up and is very thorough.

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April 29, 2025

5.0

Dr. Koo is the best

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April 24, 2025

5.0

I repeat that Dr. Koo is excellent.

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April 24, 2025

5.0

Intelligent internist who listens and carefully answers all questions

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April 24, 2025

5.0

Dr. Koo cares about his patients and takes the time to make sure he is addressing issues that affect your health and wellness.

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April 23, 2025

5.0

Dr. Koo is excellent on patient care, he listens, answers questions on concerns and provides information, options and solutions.

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April 18, 2025

5.0

As mentioned in the score given above. Dr. Koo has been my Physician since 1998. That speaks volume of the care and medical service he render to patient care.

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April 11, 2025

5.0

Wonderful Doctor he is very thorough

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April 08, 2025

5.0

Dr Koo text time with his patient, listens to them and proposes courses of care that reflect his knowledge and their values.

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April 08, 2025

5.0

Because I think VERY highly of him. I trust him. I really feel that he cares about his patients.

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April 07, 2025

5.0

He is very thorough, he listens to me, and he takes time.

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April 07, 2025

5.0

Great doctor

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April 07, 2025

5.0

Excellent diagnostician. Excellent doctor.

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April 04, 2025

5.0

Dr Koo listens and is an engaged physician with his patients

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April 02, 2025

5.0

Dr. Koo is very thorough and thoughtful. He is very bright and very inquisitive. Excellent doctor.

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April 02, 2025

5.0

Attention to detail

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April 01, 2025

5.0

Dr Koo is outstanding _ he cares so deeply about his patients.

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March 31, 2025

5.0

FYI, I've been a patient at NWM for over 30 years and the level of service continues to improve especially the patient portal on line.

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March 26, 2025

5.0

TERRIFIC Doctor

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March 24, 2025

5.0

The utmost respectful and caring doctor that is diligent in his preparation and patient in addressing his patients needs.

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March 24, 2025

5.0

My doctor is very smart and attentive. He cares a lot for my goals and well bearing.

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March 24, 2025

5.0

Spending time with you and responsible

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March 21, 2025

5.0

Dr Koo is very knowledgeable, listens to the patient, building their trust.

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March 11, 2025

5.0

Very thorough, considerate of all issues. Genuine concern for my health and well-being.

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March 05, 2025

5.0

Same as above. My only issue is that it is hard to get in to see him.

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February 28, 2025

5.0

A excellent primary care physician.

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February 28, 2025

5.0

Dr Koo is very nice and thorough.

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February 28, 2025

5.0

Extremely efficient, knowledgeable polite

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February 27, 2025

5.0

Attention to detail, covers everything necessary during appointment, kind.

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February 26, 2025

5.0

excellent doctor

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February 20, 2025

5.0

Dr. Koo is great, most thorough primary care doctor I've ever had

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February 19, 2025

5.0

The intensive care and inclusiveness of his patients with the professional care and concern for the well being of his patients is an asset to NW.

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February 13, 2025

5.0

Dr. Koo is an excellent doctor.

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February 12, 2025

5.0

He is thorough, kind and comfortable.

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February 06, 2025

5.0

Extremely knowledgeable, caring, follows up on emails

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February 05, 2025

5.0

Provided through information to me actually listened to me and spoke to me as a concerned provider.

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January 31, 2025

5.0

Dr. Koo is the best doctor I've ever been a patient of, including every other type of doctor. His knowledge is absolutely incredible and his genuine care for you as not only a patient but as a person makes you feel very important. To top it off, he's also a really nice person!

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January 31, 2025

5.0

see above He regularly responds to MYchart messages and finds time when something urgent arises to see me.

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January 31, 2025

5.0

He is genuine, thorough and a great communicator!

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January 30, 2025

5.0

Dr. Koo is very efficient and knowledgeable. He shows empathy and cates for his patients.

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January 28, 2025

5.0

Dr. Koo is very knowledgeable and very personable. He asks good questions and he allows me to make the decisions as to where to go from here.

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January 27, 2025

5.0

I been with him 3 years more. My medical problems more improving and not turn down to worse.

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January 24, 2025

5.0

Dr Koo is an amazing Dr. he took his time and didn't rush me. He listened to all my concerns and offered appropriate solutions

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January 14, 2025

5.0

Dr. Koo is a very nice doctor! He takes the time to listen before making a recommendation and answers questions thoroughly. I think he is the first doctor to ever make me feel like he wasn't rushing to see his next patient.

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January 13, 2025

5.0

Extremely competent medical professional.

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January 13, 2025

5.0

Great Doctor who cares

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January 10, 2025

5.0

Dr Koo is thorough and kind, explains all options and outcomes clearly to someone not well-versed in science (me).

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January 07, 2025

5.0

Very thorough, explains conditions and options, answers questions of concern.

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January 02, 2025

5.0

He is extremely thorough, he listens to what I have to say. And provide provides excellent advice.

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December 31, 2024

5.0

Dr. Koo is patient and caring for the first time and then thoroughly following up for ordering tests and discussing the results with me to make sure the treatment plan.

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December 30, 2024

5.0

Dr Koo is the best. Very collaborative approach to care and evidence based.

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December 23, 2024

5.0

He is one of the most thorough and thoughtful Dr. highly recommend him for anyone .

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December 23, 2024

5.0

Outstanding medical physician who cares about his patients and is pro active in addressing their individual needs.

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December 20, 2024

5.0

Dr. Koo is a very well qualified physician, very thoughtful, thorough, with great professional/personal communication. He's caring, concerned, and an outstanding physician.

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December 06, 2024

5.0

Dr. Koo interaction is direct and clear he has wonderful listening skills he is direct and trust worthy.

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December 04, 2024

5.0

Best

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December 02, 2024

5.0

Dr Koo asks the right questions and listens to your answer. He makes suggestions to encourage a healthy lifestyle and explains the reasoning behind his suggestions.

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November 23, 2024

5.0

The quality of patient care and health concerns along with the medical professionalism exhibited. Attentiveness in listening to the patient's interest.

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November 22, 2024

5.0

He acts as a partner while guiding me to my optimum health.

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November 19, 2024

5.0

Wonderful Doctor. Always takes his time with you and listen to you.

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November 15, 2024

5.0

Care & knowledgeable

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November 09, 2024

5.0

Dr koo is a good doctor.

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November 05, 2024

5.0

Dr. Koo took extensive time to go through my many test results of a broad nature when he was able to fit me in for follow up right after I was an inpatient at an outside hospital. He was his usual thorough, deliberate, friendly self in dealing with my multiple different infectious processes, the heart strain and other organ stress I experienced during my illness, and provided excellent follow up advice and meds.

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November 04, 2024

5.0

He is knowledgeable, listens to me and always asks about what I think about what he tells me

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November 03, 2024

5.0

Excellence of care

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November 01, 2024

5.0

Dr. Koo has been my PCP for several years. His professional care and medical knowledge relieves me of anxiety when illness related issues are discussed and treated. His results driven approach is outstanding.

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November 01, 2024

5.0

Dr Koo was first my mom physician and then I started seeing him. He takes his time with me. I don't feel rushed. He answers my questions and helps me with any concerns. When he thinks I should try something, he always asked me how I feel about that!!

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October 29, 2024

5.0

Dr Koo always takes the time to listen and discuss concerns. I always feel like my healthcare is the result of careful consideration of my thoughts as well as his excellent medical knowledge.

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October 26, 2024

5.0

Dr. Koo is it type of doctor that listens to you and addresses all of your needs?

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October 22, 2024

5.0

Extremely competent and listens well to patients

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October 03, 2024

5.0

He is the best!

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October 01, 2024

5.0

Dr. Koo is a very attentive and experienced doctor. He diagnosed my HCM and noise in my lungs and referred me to experts and testing and treatments that have appreciably helped my health. As noted above, he's the best!

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September 28, 2024

5.0

Dr. Koo is very thorough, knowledgeable and friendly. He made sure I was comfortable with the plan and helped me make important decisions. He did a wonderful job caring for me!

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September 27, 2024

5.0

Very competent and professional, providing detail explanations of any medical issues and follow-up recommendations.

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September 19, 2024

5.0

Dr. Koo is a very competent, thorough physician who is at the same time compassionate and caring

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September 17, 2024

5.0

Dr.Koo is the best doctor ever. He makes me feel heard and I genuinely feel he cares for me. I do not feel rushed in his visits. Dr. Koo makes me feel very involved and I just really see he cares about his job.

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September 13, 2024

5.0

Excellent care.

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September 13, 2024

5.0

Excellent attention to concerns

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September 13, 2024

5.0

Easy to talk to. Friendly. Helpful.

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September 09, 2024

5.0

Honest

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September 09, 2024

5.0

Professional, efficient and knowledgeable. Very patient, thoughtful and caring.

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September 06, 2024

5.0

Dr. Jah-Won Koo is excellent. Thorough, efficient, thoughtful, caring.

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September 06, 2024

5.0

I know that a referral would be very helpful to a friend. I feel very confident that they would have excellent treatment.

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September 06, 2024

5.0

He very attentive to patient listening not judging pt concerns questions he works with you on your health concerns.

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Disclosures

Jah-Won Koo, 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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