Jared S. Ko, MD | Northwestern Medicine

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:: MD, University of Illinois at Chicago College of Medicine - 1996
Residency:: University of Illinois College of Medicine at Chicago - 1999

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medicine Regional Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Northwestern McHenry Huntley & Woodstock Hospitals

Ratings and Reviews

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Overall Rating

4.9

4.9

2567 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 26, 2026

5.0

Jared Ko is an amazing MD. Easy to talk to, very informative & intelligent in his practice.

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February 25, 2026

5.0

listens and makes decisions based on my medical complaints

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February 24, 2026

5.0

I'm comfortable with Dr Ko and feel I am in great hands medically

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February 20, 2026

5.0

Qualifications, experience, judgment and attentiveness.

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February 20, 2026

5.0

Friendly and caring and takes his time with you

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February 19, 2026

5.0

My visit was very good . I listened and they listened .

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February 15, 2026

5.0

VERY RESPONSIVE TO NEEDS AND CARE.

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February 15, 2026

5.0

Dr. Ko always takes good care of us!

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February 15, 2026

5.0

Dr. Ko is an outstanding physician. He is relatable, listens to my concerns, explains medical terms to me in patient friendly terms, and spends adequate time with me as a physician. He is the reason I continue to go to Northwestern Medicine.

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February 13, 2026

5.0

He is friendly and knowledgeable

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February 08, 2026

5.0

Genuinely nice guy, easy to talk to

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February 07, 2026

5.0

Dr. Ko is very personable and nice.

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February 07, 2026

5.0

Always takes the time to hear my concerns and has the answers in easy to underatnd conversations!

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February 06, 2026

5.0

I'm very confident in Dr Ko's ability to give me the best care.

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February 05, 2026

5.0

Dr. Ko is an excellent replacement for Dr. [llast name], who was the best PCP of my life. Based on our discussion today, I'm convinced he will equal or even possibly surpass his predecessor.

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February 04, 2026

5.0

One of the best doctors we've seen!

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January 30, 2026

5.0

Doctor Ko is physician that I was looking for long time.

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January 29, 2026

5.0

Dr. Ko always is friendly and informative and explains things thoroughly. The staff are also friendly and attentive

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January 28, 2026

5.0

Listens to me and takes his time

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January 27, 2026

5.0

Jared is friendly person Knows what he is doing

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January 27, 2026

5.0

He takes his time during an appointment.

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January 26, 2026

5.0

Easy to talk and work with on my concerns.

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January 23, 2026

5.0

He did a great job going through my medical history and gave me some great advice on how to deal with my condition

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January 23, 2026

5.0

Dr Ko does a great job, easy to talk to, thorough in understanding medical issues

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January 22, 2026

5.0

Gives good information and explanations

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January 18, 2026

5.0

Very knowledgeable professional with much experience.

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January 17, 2026

5.0

Doctor takes it time to listen and talk with you. He doesn't make you feel like you're cattle, just in and out.

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January 14, 2026

5.0

Knowledgeable caring Dr who is easy to talk to.

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January 13, 2026

5.0

He's very nice and very personable

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January 12, 2026

5.0

Dr Ko is extremely interested & takes the time with his patient

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January 09, 2026

5.0

Very thorough exam

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January 07, 2026

5.0

He listened to me. And when I left, I was feeling much better.

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January 06, 2026

5.0

Jared and staff are great.

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January 05, 2026

5.0

Hi does a wonderful job

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December 31, 2025

5.0

Easy to talk to him very helpful

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December 22, 2025

5.0

Explains care and answers questions

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December 21, 2025

5.0

Competent, compassionate care

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December 20, 2025

5.0

Dr Ko has been my PCP for almost 15 years. He listens to my concerns and answers any questions I have. He's caring, has a great sense of humor, and always makes me laugh when I go see him. I always look forward to seeing Dr Ko. Dr Ko and his staff are always wonderful.

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December 17, 2025

5.0

He is very knowledgeable and takes his time with you.

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December 16, 2025

5.0

Very competent physician

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December 09, 2025

5.0

He listens to what I am saying and hears me. He explains things in a way I can understand.

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December 06, 2025

5.0

He is a proactive rather than reactive doctor. I appreciate him as my primary physician and would recommend him to everyone I know.

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December 05, 2025

5.0

Dr. Ko presents confidence and concern that I am fully informed of my Health.

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December 01, 2025

5.0

Friendly and respectful. Knowledgeable and patient to answer questions

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November 26, 2025

5.0

Dr. Ko is a very kind and empathetic doctor. He truly cares for his patient. He takes time to listen to my concerns and keeps me on a great path of wellness. I'm grateful that he is my doctor.

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November 25, 2025

5.0

Compassionate, competent, personable.

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November 25, 2025

5.0

He spends time with his patients explaining the procedures he is suggesting and is happy to answer questions I had.

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November 21, 2025

5.0

Extremely competent and knowledgeable-great GP!!!!

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November 21, 2025

5.0

Dr Ko was patient, explained everything, and nice to talk to

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November 20, 2025

5.0

very good at his job

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November 20, 2025

5.0

He is a great doctor

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November 20, 2025

5.0

Dr. Ko is excellent and personable. My mother's gone to him for years and she thinks he's great.

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November 19, 2025

5.0

Dr. Ko was very thorough and explained where I could understand. Dr. Ko is the best.

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November 18, 2025

5.0

Comfortable to discuss conditions, options

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November 18, 2025

5.0

Takes his time covering all your questions and concerns

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November 18, 2025

5.0

Dr Ko made me feel like he was listening to me and understood my medical needs.He has a great sense of humor.

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November 18, 2025

5.0

Long time relationship.

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November 16, 2025

5.0

I love that he takes his time with you. He doesn't make you feel he is wanting to usher you out the door so he can see the next patient.

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November 16, 2025

5.0

Dr. Ko has been my PCP since we moved back to IL 25 years ago and I know I'm in good hands. He always takes the time to answer my questions and never makes me feel rushed. I have faith in him and how he handles my care.

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November 15, 2025

5.0

Love Dr. Ko! He is honest and keeps things realistic. He is patient, answers questions and has a great sense of humor. I trust him and the health advice he gives me.

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November 13, 2025

5.0

Great doctor, has helped me improve my health

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November 13, 2025

5.0

Dr.Ko is super nice and he is very good at explaining health issues. Dr.Ko is really good at listening to what questions or concerns you might have regarding your healthcare,

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November 13, 2025

5.0

He is the best.

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November 12, 2025

5.0

He cares

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November 08, 2025

5.0

Cares about my well being.

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November 07, 2025

5.0

He is professional, intelligent, and clearly cares for his patients.

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November 07, 2025

5.0

Took the time to listen.

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November 05, 2025

5.0

When you truly love what you do it shows through on how you treat patients.Dr. Ko takes the time to explain clearly to assure me that i understand what is happening. His patience and understanding is first class.

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November 05, 2025

5.0

Dr. Ko took his time addressing all my concerns and explaining everything patiently! He reviewed everything on My Chart and addressed each item!

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November 03, 2025

5.0

Very patient with people !

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November 01, 2025

5.0

He explained how each medication affect affect my body function

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October 30, 2025

5.0

Dr Ko has a great sense of humour and compassion ! I feel very happy with his care.

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October 30, 2025

5.0

Easy to talk to and listens carefully

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October 29, 2025

5.0

Great personality and very thorough

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October 29, 2025

5.0

Caring , very professional and genuine person.

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October 28, 2025

5.0

Polite and professional and optimistic

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October 27, 2025

5.0

Thorough care and sensitive communication.

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October 27, 2025

5.0

Nice guy and makes you feel at ease. Knowledgeable

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October 25, 2025

5.0

Dr Ko is a good doctor. He takes the time to talk to you!

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October 24, 2025

5.0

Dr Ko is exceptional. He listens to you and is willing to work with you to solve your medical needs. He is very personable too.

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October 24, 2025

5.0

Tells it like it is . I always leave more knowledgeable .

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October 22, 2025

5.0

Personable, thorough, listens, and knowledgeable.

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October 20, 2025

5.0

Very good doctor he always listen all my concerns

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October 18, 2025

5.0

Just the Best.

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October 17, 2025

5.0

Dr. Ko is the Best he listens, explains things throughly where I understand, and he truly cares about his patients. Excellent bedside manner! Would definitely and highly recommend!

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October 17, 2025

5.0

Very caring and willing to listen

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October 13, 2025

5.0

Like him

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October 13, 2025

5.0

He listens to your concerns and responds concisely.

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October 13, 2025

5.0

He spends the time with me to listen and discuss how I'm doing.

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October 10, 2025

5.0

He cares and takes time with me to make sure I get the best care he can provide.

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October 09, 2025

5.0

He takes his time addressing my health issues. In office I feel well taken care of and I do not get the impression of being rushed in and out of the office. I love that he explains everything and tells me why treatment is or is not needed. I feel valued as a patient not just a number

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October 09, 2025

5.0

He's knowledgeable and listens to his patients.

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October 07, 2025

5.0

Knowledgeable, caring, excellent doctor

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October 07, 2025

5.0

Very likeable.

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October 07, 2025

5.0

He takes time to explain your care plan

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October 06, 2025

5.0

I like dr Ko he takes a lot of time explaining things and any issues I have.

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October 06, 2025

5.0

sent at least 5 patience to him

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October 03, 2025

5.0

Quality care.

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October 02, 2025

5.0

Doctor Ko, went over all my symptoms professionally. He took time to explain my symptoms and recommended a dermatologist for my skincare. He answered all my questions and concerns regarding my heath.

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October 01, 2025

5.0

EXCELLENCE!!!!

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Disclosures

Jared S. Ko, 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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