Jah-Won Koo, MD

Jah-Won Koo, MD

5.0 
1021 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Internal Medicine

Is your insurance accepted? Select plan

Schedule Appointment

Choose a scheduling option:

New Patient

Appointments limited in the next 6 months. Call for availability.

 RETURNING PATIENT

Schedule online with your MyNM account

 CALL

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

View Faculty Profile

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.

Read Ratings FAQs

Overall Rating

5.0
5.0 

1021 Ratings

Sort By Newest

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

Sort By Newest
100 Most Recent Reviews

April 29, 2024

5.0

Very practical and listens well

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 26, 2024

5.0

Very detailed explanation of the findings by taking extra time after going through the medical records and examination.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 22, 2024

5.0

Dr Koo, takes medicine, patient care very seriously

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 19, 2024

5.0

Very personable doctor who cares for his patients.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 18, 2024

5.0

He’s patient and listens to my concerns.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 16, 2024

5.0

Dr. Koo is caring and professional. Exams are always thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 15, 2024

5.0

Great bedside manner. Was able to discuss why he wanted certain goals for my blood pressure and cholesterol. Great shared decision making when appropriate.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 15, 2024

5.0

Good hospital and good doctors. Dr. Koo is very thoughtful and did recommendations with good reasoning.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 12, 2024

5.0

Same as the above. Nurse was great in preparing dr for my virtual visit

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 11, 2024

5.0

He is very thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 11, 2024

5.0

Meets my requirements. He seems interested in me and is respectful of my time schedules.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 11, 2024

5.0

Very thorough Took a lot of time with me

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 11, 2024

5.0

Dr. Koo is extremely thorough. He is a wonderful listener and answers each of my questions. Dr. Koo remembers so much information about me. I feel secure and content that I will be receiving the best care possible.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 04, 2024

5.0

Well, prepared for my visit by studying my chart the night before. It’s spent a lot of time with me and was very thorough and thoughtful.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 28, 2024

5.0

A great and caring physician.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 27, 2024

5.0

He cares

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 26, 2024

5.0

This was my first time meeting Dr. Koo and I was immediately happy to have him as my new doctor. He was kind, listened, and did not make me feel rushed as other medical professionals sometimes have.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 26, 2024

5.0

Dr Koo listens to your concerns and recommends treatment.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 21, 2024

5.0

He is excellent- very thorough, very caring.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 19, 2024

5.0

He is the doctor people want to see

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 19, 2024

5.0

Excellent physician that takes his time in addressing his patients needs.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 18, 2024

5.0

Dr. Koo is the best! He is professional, knowledgeable, displays patience, caring, etc. Need I say more…

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 15, 2024

5.0

Dr. Koo provides great primary care. Very thorough and is invested in the overall health of his patients

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 14, 2024

5.0

Dr. Koo listens to me and gives very good recommendations on what I should do to take care of myself. He's friendly and goes above and beyond to help me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 11, 2024

5.0

Dr. Koo is a doctor with much wisdom and actions

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 09, 2024

5.0

I highly recommend Dr Koo for his compassion, integrity, information provided to me, and his warm bedside manner.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 08, 2024

5.0

Excellant doctor!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 04, 2024

5.0

…Dr Koo is a competent and thorough practitioner. His patients laud him for his insight, caring, and methodical approach to healthcare. Dr Koo listens well. He clearly explains next steps, treatment and disease prevention strategies. …I am a new patient and I’m on board with Dr Koo!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 29, 2024

5.0

Very caring physician who listens and treats you like family

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 27, 2024

5.0

He is very thorough and extremely kind. Explains things so that I understand them. His bedside manner is superb!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 26, 2024

5.0

Dr. Koo is very patient and answers all your questions. He’s concerned with the patient inquiries . He is a great Doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 23, 2024

5.0

Since I have been working with him he gives me confidence about my health

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 22, 2024

5.0

Super Doc

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 22, 2024

5.0

Very professional, knowledgeable, very thorough, has excellent customer service skills & he is very reassuring.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 19, 2024

5.0

Friendly, knowledgeable, easy to talk to

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 19, 2024

5.0

Caring and listens well.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 14, 2024

5.0

Very trusting and understanding person. Understands my financial limitations and takes that into consideration when discussing possible treatment plans.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 13, 2024

5.0

He is very knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 09, 2024

5.0

Dr. Koo is the best doctor I've had since I was 6.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 05, 2024

5.0

Dr. Koo understands his patients needs. He truly does shine bright like a diamond with caring for me as his patient.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 02, 2024

5.0

He’s smart and listens beautifully

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 01, 2024

5.0

We discussed the CT scan results in detail, great explanations and decided on a treatment plan. Thorough exam, I feel well taken care of

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 01, 2024

5.0

Great doctor that takes the time to understand your specific situation and a course of action!!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 30, 2024

5.0

Dr. Koo is smart, kind, compassionate, conscientious, and a fantastic doctor.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 30, 2024

5.0

Dr. Koo is truly incredible. He is thorough, thoughtful, and professional. It’s not always easy to find a doctor you can put your full trust in, but Dr. Koo has mine. I know I’ll always get exceptional healthcare with him.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 26, 2024

5.0

Dr. Koo is professional and kind. Also, he has reviewed the patient’s questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 23, 2024

5.0

No better bedside manner of any physicians that I have ever visited. Dr. Koo is the real deal! He is very attentive to my care and concerned for my health.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 22, 2024

5.0

He’s knowledgeable, kind and thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 18, 2024

5.0

Kind and Comprehensive

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 16, 2024

5.0

Dr Koo is thorough, competent, compassionate with unhurried concern for his patient.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 15, 2024

4.0

He Listen to the patient

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 11, 2024

5.0

Very good doctor.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 11, 2024

5.0

He is caring, spends quality time, listen to hear concerns and is proactive.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 09, 2024

5.0

Listens and responds with language that I can understand.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 09, 2024

5.0

Dr koo listens to my concerns. You can’t put a price on a physician who listens.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 03, 2024

5.0

Dr. Koo is attentive and concerned about his patients.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 26, 2023

5.0

Spent enough time, comprehensive, allowed me the time/opportunity to bring up the reasons that brought me in

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 25, 2023

5.0

Dr. Koo is incredible. He listens carefully. He speaks with me in terms I understand. Dr. Koo makes sure I am fully aware of why I should take particular medication and possible side effects. He always includes me in every decision. He truly cares about me, as if I was his Brother or Immediate Family Member.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 23, 2023

5.0

He has been my physician for more than 20 years. He is honest and informs me of any and all health matters.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 22, 2023

5.0

Dr. Koo is an excellent physician and communicator—empathetic, thorough, and responsive—personally and professionally. He puts me at ease during our time together and is always respectful re: my questions, clarifying his réponses as needed. He clearly takes my medical problems and concerns seriously. He keeps on top of all my labs and tests and when I come in for an appointment it’s clear he’s taken time to refresh his knowledge of my medical history and current issues—including recent tests and input from other specialists in my My Chart re: conditions he’s keeping an eye on. I’m delighted that I was fortunate enough to have Dr. Koo take over my medical care when Dr. [ ] retired.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 19, 2023

5.0

He is authentic and caring. He really has the patient in mind. he has great "bed-side" manners. I appreciate his understanding, patience and support.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 19, 2023

5.0

I continue to refer future patients to Dr. Koo, because he is and EXCELLENT DOCTOR

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 15, 2023

5.0

Kind

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 15, 2023

5.0

He provides thoroughly exams and shows genuine concern

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 14, 2023

5.0

Thorough Kind Decisive

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 11, 2023

5.0

He is so thorough and pleasant. He makes you feel like you are a partner in your medical care. He listens and collaborates with you; he doesn’t just tell you what to do.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 11, 2023

5.0

I just feel really comfortable with Dr. Koo. I have since my first appointment with him several years ago.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 08, 2023

5.0

Superior provider, caring, professional, Smart

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 07, 2023

5.0

He was thorough, friendly, professional, caring and knowledgeable.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 04, 2023

5.0

Very pleased with Dr Koo. He's very thorough in explaining my health conditions. He takes the time to answer my questions and will give options.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 03, 2023

5.0

Dr. Koo talks to me in a fashion I can understand. He listens to my questions and answers every one of them. I am never rushed with my time with Dr, Koo. Dr. Koo makes me feel that he is truly concerned for my well being. The visits are thorough and I know I am receiving the ultimate care when I see Dr. Koo. I take several medications and Dr. Koo always slowly goes through each medicine and is certain I am understanding what is the purpose of the medicine, the dosage and the possible side effects.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 02, 2023

5.0

Good care service from him.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 01, 2023

5.0

Dr Koo is most professional and thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 29, 2023

5.0

He understands his field of medicine

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 24, 2023

5.0

Dr. Koo is an amazing doctor. He always gets back to my family. I appreciate his support, as my family is going through a challenging time. We make decisions together regarding my family’s health.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 24, 2023

5.0

Dr. Koo supports our family and I always feel like we are making decisions together regarding our health.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 22, 2023

5.0

WONDERFUL AND CARING DOCTOR

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 22, 2023

5.0

GREAT DOCTOR

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 20, 2023

5.0

A great, caring and knowledgeable physician.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 20, 2023

5.0

He’s personable, has a terrific bedside manner, and ALWAYS looking to maximize my health.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 14, 2023

5.0

Dr Koo is great. He actually listens to his patients. You don’t feel like he’s rushing you to get on to his next patient. I think he is a great Dr.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 14, 2023

5.0

Dr Koo really gives the best advice I feel for my medical history.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 14, 2023

5.0

Nice guy knowledgeable and easygoing. Little vaccine pushy but suppose that’s why you pay em.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 04, 2023

5.0

The doctor showed concern and caring about my medical issues. He ordered tests and was very thorough and helpful.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 02, 2023

5.0

He is through and takes into consideration your feelings about how you think you are doing. He is a great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 31, 2023

5.0

Dr. Koo is the best. He’s so positive. Encourages me, very easy to talk to and very smart.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 30, 2023

5.0

Dr. Koo was amiable, polite, professional, and informative. He is very knowledgeable and would recommend anything that he sees fit to help improve the condition or as preventive care.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 24, 2023

5.0

Thorough and efficient.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 19, 2023

5.0

He's been my physician for over 20 years. He is thoughtful, intentional and very professional.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 12, 2023

5.0

He is the best. Cares about his patients. Trustworthy!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 12, 2023

5.0

Personally my medical problem solved and preventive further medically sickness.related test. That means check advance body sickness and complications.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 10, 2023

5.0

Dr Koo is great. Makes you feel like a partner in your care.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 05, 2023

5.0

Dr. Koo was attentive and answered all questions. He genuinely cared about the visit.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 05, 2023

5.0

Dr Koo is very patient and understanding, He makes me feel calm and understood.He has a very pleasant becdside manor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 05, 2023

5.0

Very competent and professional

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 03, 2023

5.0

He is very efficient and caring.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 03, 2023

5.0

Efficient office. I was in and out in slightly over an hour

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 03, 2023

5.0

Dr. Koo is an excellent communicator. He makes sure I understand what tasks I need to do. For example, if we are changing around my medications or if I need to talk to one of my other doctors. We make decisions together about my health. Dr. Koo is very compassionate and shows empathy when I’m sick or when I need to make hard decisions about my health. Dr. Koo has built a strong relationship with me, and my entire family by listening and always giving us his professional opinion. Dr. Koo is kind and is always available for me when I’m sick, have a question, or have an emergency. Thank you, Dr. Koo!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 02, 2023

5.0

He is very patient, through, and caring.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 30, 2023

5.0

It was my first visit with Dr. Koo, and he was personable and very thorough in taking a look at my medical history my current vitals and medications, and my health concerns. I felt he was genuinely interested in getting to know me as a person and a patient, and took my medical concerns seriously, evaluating them in terms of my medical records, including previous test results from NORTHWESTERN and a doctor in Florida. He was easy to talk to, and didn’t condescend, or dismiss my questions. Instead, he thoughtfully answered and explained the ramifications of medication and treatment options.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!
View more reviews

Disclosures

Jah-Won Koo, MD reported no external professional relationships for calendar year 2023.

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.

View More Disclosures