Jah-Won Koo, MD

Jah-Won Koo, MD

5.0 
758 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

Health System Clinician, 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 

758 Ratings

Sort By Newest

Reviews from Patients

90 Reviews

Reviews from Patients

Sort By Newest
90 Reviews

August 28, 2023

5.0

Thorough and caring

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

Thanks for your feedback!

August 28, 2023

5.0

I would highly recommend Dr. Jah-Won Koo for his detailed attention to my heath care. He does an excellent job at answering my questions and concerns.

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

Thanks for your feedback!

August 24, 2023

5.0

I like his thorough, intelligent and conservative approach to things - he has a pleasant personality as well.

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

Thanks for your feedback!

August 21, 2023

5.0

Dr Koo, listens and understands what I'm talking about. He advices me as to what to do.

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

Thanks for your feedback!

August 15, 2023

5.0

A great physician with great skills who offers outstanding customer service. An excellent teacher to his students.

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

Thanks for your feedback!

August 14, 2023

5.0

Dr. Koo is an incredible physician and I’ve always been happy with his care and attention to detail.

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

Thanks for your feedback!

August 14, 2023

5.0

Very thorough in his questions and evaluation. Great bedside manner. Made great referrals. B

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

Thanks for your feedback!

August 10, 2023

5.0

Dr koo is excellent primary care doctor

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

Thanks for your feedback!

August 07, 2023

5.0

Dr. Koo is an awesome doctor

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

Thanks for your feedback!

August 03, 2023

5.0

Competent internist

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

Thanks for your feedback!

August 01, 2023

5.0

I have been coming to Dr Koo for a very long time now. My mom was a patient of his and she loved him. So I started with Dr Koo for over ten years now. He doesn’t rush you . He takes his time and He always asked , “ Does that sounds good” before you make any decisions. He answers all of your questions .

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

Thanks for your feedback!

August 01, 2023

5.0

Always makes me feel comfortable talking about my health and opportunities to improve.

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

Thanks for your feedback!

July 29, 2023

5.0

Excellent. Dr Koo listens, hears and enlightens.

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

Thanks for your feedback!

July 28, 2023

5.0

Dr Koo listens well and takes his time. He is intelligent and thoughtful.

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

Thanks for your feedback!

July 28, 2023

5.0

He’s Amazing!

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

Thanks for your feedback!

July 27, 2023

5.0

He’s very patient and personable which is comforting. He’s makes it easy to take to and he seems to care about those he has in his care.

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

Thanks for your feedback!

July 27, 2023

5.0

He’s great. I really value how he’s worked with me on my health over the years.

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

Thanks for your feedback!

July 24, 2023

5.0

Outstanding physician

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

Thanks for your feedback!

July 21, 2023

5.0

A great knowledgeable and caring physician.

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

Thanks for your feedback!

July 19, 2023

5.0

Examination was very thorough, and doctor gave me ample time to address all my concerns

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

Thanks for your feedback!

July 18, 2023

5.0

Dr. Koo is the best listener. Sometimes professionals are in a rush and you're still trying to find the words. I know Dr. Koo had a lot on his plate today, but he didn't even show it. He let me get out my concerns and made a plan.

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

Thanks for your feedback!

July 18, 2023

5.0

Koo is the best doctor

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

Thanks for your feedback!

July 16, 2023

5.0

Professional, patient, caring

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

Thanks for your feedback!

July 14, 2023

5.0

Excellent medical skills.

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

Thanks for your feedback!

July 14, 2023

5.0

Excellent doctor that takes time with his patients!

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

Thanks for your feedback!

July 12, 2023

5.0

I am always happy how Dr. Koo take care of things and how he follow through with his patients. Always gives the best care and service and very good in communication when in terms of the results and giving responses in My Chart.

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

Thanks for your feedback!

July 10, 2023

5.0

Dr. Koo is knowledgeable, thorough, and approachable. He takes the time necessary to understand issues and formulate a thoughtful plan of care.

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

Thanks for your feedback!

July 07, 2023

5.0

He is an excellent doctor. Very professional, knowledgeable, caring, he listens & acknowledges my concerns and has great 'bedside' manner. He will go the extra mile and will do research to find answers. He treats his patients (me) with respect. I would highly recommend his services.

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

Thanks for your feedback!

July 03, 2023

5.0

Great and caring physician.

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

Thanks for your feedback!

July 01, 2023

5.0

Caring

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

Thanks for your feedback!

June 30, 2023

5.0

Great communication.

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

Thanks for your feedback!

June 29, 2023

5.0

He is thorough, knowledgeable, and kind. That makes all the difference.

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

Thanks for your feedback!

June 29, 2023

5.0

One of the best doctors I’ve ever had, and I’ve had many. He cares, relates, is extremely knowledgeable, diligent, thorough, personable, articulate, explains everything, and I couldn’t wish for a better internist.

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

Thanks for your feedback!

June 23, 2023

5.0

Excellent physician that is diligent and patient!

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

Thanks for your feedback!

June 20, 2023

5.0

See above. Personable, thorough, engaged, friendly, good memory of my history

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

Thanks for your feedback!

June 19, 2023

5.0

Very thorough

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

Thanks for your feedback!

June 15, 2023

5.0

Knowledgeable-listens well

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

Thanks for your feedback!

June 14, 2023

5.0

First of all, Dr Koo and his staff provided me with allbthe answers to all my questions. I had many questions and all was well presented to my questions I recommend yhe entire staff

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

Thanks for your feedback!

June 14, 2023

5.0

Very knowledgeable, excellent expression of care for patient needs, comfort; clarity of information provided.

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

Thanks for your feedback!

June 12, 2023

5.0

Listens well

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

Thanks for your feedback!

June 12, 2023

5.0

Dr. Koo work ethic/ patient care is superb. He value his patients well being. I have been a patient of his since [date]. And the care of his patients speaks with volume.

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

Thanks for your feedback!

June 12, 2023

5.0

Dr koo is extremely knowledgeable and professional. I’m very happy with having him as my physician

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

Thanks for your feedback!

June 09, 2023

5.0

I get answers for the questions I have.

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

Thanks for your feedback!

June 07, 2023

5.0

Good communication skills. Explains everything. Willing to support my health desires

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

Thanks for your feedback!

June 07, 2023

5.0

Dr Koo is very professional and friendly with great enthusiasm for his patients.

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

Thanks for your feedback!

June 06, 2023

5.0

Short sweet thorough.

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

Thanks for your feedback!

June 06, 2023

5.0

He care for his patients and he go beyond and he humble and get things done o. Time and he communicate well when things are going bad ,he very encouraging and caring. I can say More and more but for now he's the greatest DR.

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

Thanks for your feedback!

June 01, 2023

5.0

Dr. Jah-Won Koo always takes time to ask questions and makes sure all medications are correct. He also makes sure to ask for BP readings to make sure blood pressure meds are the right dosage.

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

Thanks for your feedback!

May 25, 2023

5.0

Very good,knowledgeable and ask patient all basic questions about health and then recommend the proper treatment

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

Thanks for your feedback!

May 23, 2023

5.0

He is nice and very helpful!

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

Thanks for your feedback!

May 23, 2023

5.0

He’s thorough, kind, professional and the best doctor I’ve ever had.

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

Thanks for your feedback!

May 22, 2023

5.0

See above. I have represented physicians for 40+ years and have come to know a little bit about quality care.

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

Thanks for your feedback!

May 22, 2023

5.0

Very communicative and explained things well.

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

Thanks for your feedback!

May 22, 2023

5.0

I have recommended a number of relatives and friends to my doctor and all of the have great confidence in Dr. Koo… Whenever anyone ask me about a primary Doctor…he is the only one I will recommend

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

Thanks for your feedback!

May 19, 2023

5.0

Dr. Koo always asks the right questions and is willing to help when you have any issues.

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

Thanks for your feedback!

May 19, 2023

5.0

Excellent care and bedside manner

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

Thanks for your feedback!

May 15, 2023

5.0

He is the best

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

Thanks for your feedback!

May 15, 2023

5.0

Extremely caring. Does telehealth visits when appropriate

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

Thanks for your feedback!

May 15, 2023

5.0

Dr. Koo is proactive with your health care, which means a great deal to myself and my family.

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

Thanks for your feedback!

May 11, 2023

5.0

The reasons for my score is Dr Koo makes sure you understand everything he’s saying to you when it comes to my healthcare. I don’t feel like I’m being rushed and he takes his time with me.

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

Thanks for your feedback!

May 11, 2023

5.0

He listens and has great ideas to deal with my issues.

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

Thanks for your feedback!

May 10, 2023

5.0

Dr. Koo is that professional you often expect but don't get. He's an excellent primary care physician.

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

Thanks for your feedback!

May 09, 2023

5.0

Dr Koo!!!

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

Thanks for your feedback!

May 05, 2023

5.0

Detail oriented. Thoughtful. His diagnosis probably saved my life

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

Thanks for your feedback!

May 04, 2023

5.0

Dr. Koo was one of the most professional and understanding doctors I have had. He actually talked to me and spent the time to get to know me and gave me hope that we can get to the bottom of some of the issues I'm dealing with. I will absolutely make him my GP and could not speak more highly of him as a physician.

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

Thanks for your feedback!

May 04, 2023

5.0

Attentive, knowledgeable, personable and caring

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

Thanks for your feedback!

May 02, 2023

5.0

Dr Koo is empathetic and makes me feel at ease

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

Thanks for your feedback!

April 28, 2023

5.0

Very friendly, thorough and professional

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

Thanks for your feedback!

April 27, 2023

5.0

Very thorough, good listener, knowledgeable, professional and congenial.

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

Thanks for your feedback!

April 24, 2023

5.0

He is very patient, knowledgeable and takes the time to become familiar with his patients. He is also proactive which I appreciate.

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

Thanks for your feedback!

April 24, 2023

5.0

He is Smart

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

Thanks for your feedback!

April 24, 2023

5.0

Quality of care and he listens to your concerns.

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

Thanks for your feedback!

April 18, 2023

5.0

I Always recommend Dr Koo.

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

Thanks for your feedback!

April 18, 2023

5.0

Knowledgeable, direct, responsive

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

Thanks for your feedback!

April 17, 2023

5.0

I have already done so (recommended Dr. Koo).

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

Thanks for your feedback!

April 17, 2023

5.0

Great patient care

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

Thanks for your feedback!

April 17, 2023

5.0

He takes his time to explain everything

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

Thanks for your feedback!

April 16, 2023

5.0

He is great Doctor, very caring very thoughtful. Always takes his time with you ,never in a hurry. Will always answer questions . Again he is the best

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

Thanks for your feedback!

April 14, 2023

5.0

The focus of care, patient concerns and follow-up care is with great expertise. I have been a patient of Dr. Koo since [date]. And I am well pleased and grateful for the care, expertise, professionalism with concern and caregiving for my care of health status.

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

Thanks for your feedback!

April 13, 2023

5.0

Dr. Koo is incredibly thorough, respectful, and has my best interests in mind as a patient.

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

Thanks for your feedback!

April 13, 2023

5.0

Excellent bedside manner. He listens and is attentive

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

Thanks for your feedback!

April 12, 2023

5.0

Dr. Koo was highly recommended to me by my former primary care physician who retired. Upon meeting Dr. Koo I was very pleased.

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

Thanks for your feedback!

April 10, 2023

5.0

Dr. Koo is the best doctor ever!

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

Thanks for your feedback!

April 08, 2023

5.0

He listens, gives clear explanations, offers options and reasons for each. Freely listened to and respected.

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

Thanks for your feedback!

April 05, 2023

5.0

Dr. Koo is great. In addition to being extremely knowledgeable and thorough, he really cares about his patients. He listens to concerns and responds to them, taking them into account in making his recommendations. He is also accessible and easy to communicate with. I am fortunate to be his patient.

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

Thanks for your feedback!

March 29, 2023

5.0

Excellent bedside manner he always takes his time answering questions, explaining and confirming I’m aligned with what he’s proposing.

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

Thanks for your feedback!

March 29, 2023

5.0

25 years of experience with a healthy attitude towards patients issues.

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

Thanks for your feedback!

March 28, 2023

5.0

Dr Koo. He’s the finest doctor.

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

Thanks for your feedback!

March 27, 2023

5.0

I repeat Dr. Koo is the VERY BEST!

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

Thanks for your feedback!

March 27, 2023

5.0

Professionalism Highly knowledgeable Never feel rushed

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 2021.

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