Kellyn R. Marks, MD

Kellyn R. Marks, MD

5.0 
2144 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Internal Medicine

Is your insurance accepted? Select plan

Education

Medical Education:
MD, Northwestern University Feinberg School of Medicine - 1993
Residency:
McGaw Medical Center of Northwestern University - 1996

Board Certifications

  • American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Clinical Instructor, 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 

2144 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 29, 2025

5.0

Super smart doctor; attentive with practical approach.

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

Thanks for your feedback!

April 25, 2025

5.0

Dr. Marks is an excellent compassionate physician. I'm lucky to be her patient

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

Thanks for your feedback!

April 24, 2025

5.0

Dr. Marks is just the absolute best. She listens, is kind, informative, reasonable. A true gem.

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

Thanks for your feedback!

April 18, 2025

5.0

Great evidence based care.

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

Thanks for your feedback!

April 17, 2025

5.0

Excellent care

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

Thanks for your feedback!

April 17, 2025

5.0

Impeccable note-taking, always on top of my care, responds quickly to all inquiries. Actually KNOWS me.

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

Thanks for your feedback!

April 16, 2025

5.0

Dr Marks is an excellent primary care physician

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

Thanks for your feedback!

April 15, 2025

5.0

Dr. Marks is thorough, warm and reassuring.

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

Thanks for your feedback!

April 14, 2025

5.0

She has been my Doctor for over 20 years and she is the best

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

Thanks for your feedback!

April 14, 2025

5.0

I love my doc. She has treated me with courtesy, respect, professionalism, and compassion for more than 20 years.

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

Thanks for your feedback!

April 11, 2025

5.0

Very caring and I never feel rushed at my appointments w Dr Marks

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

Thanks for your feedback!

April 10, 2025

5.0

She is smart, efficient, kind, the best!

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

Thanks for your feedback!

April 07, 2025

5.0

Very personable and thorough

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

Thanks for your feedback!

April 07, 2025

5.0

Dr Marks always listens to my concerns and often does a follow-up (either a phone a phone call or My Chart)

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

Thanks for your feedback!

April 07, 2025

5.0

She's been my physician since 1998 and has always listened and took the most time and safest path for my care.

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

Thanks for your feedback!

April 06, 2025

5.0

She's terrific in all aspects. Great listener and provides thoughtful diagnosis . Superb bedside manner. I feel she cares for my well being,

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

Thanks for your feedback!

April 06, 2025

5.0

We have been seeing her for 20 years and think the world of her.

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

Thanks for your feedback!

April 02, 2025

5.0

Dr. Marks is honest, while understanding - and she spends the time to ensure everything is clear. Never feel rushed. So appreciate her!

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

Thanks for your feedback!

April 02, 2025

5.0

She's kind, considerate, and listens to your needs.

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

Thanks for your feedback!

April 02, 2025

5.0

De. Marks is caring, thoughtful, thorough and efficient.

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

Thanks for your feedback!

April 01, 2025

5.0

Kellyn Marks provides great care.

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

Thanks for your feedback!

April 01, 2025

5.0

Kind, knowledgeable, takes time to answer questions and explain things.

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

Thanks for your feedback!

April 01, 2025

5.0

Dr. Marks cares about her patients. Always stays in touch!

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

Thanks for your feedback!

April 01, 2025

5.0

She is an excellent physician! Knowledgeable, compassionate and attentive to patent's concerns.

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

Thanks for your feedback!

March 29, 2025

5.0

Dr. Marks is always generous with her time and friendly; she is professional and thorough.

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

Thanks for your feedback!

March 28, 2025

5.0

Dr. Marks never makes me feel rushed. She listens, and she is very clear when discussing things with me.

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

Thanks for your feedback!

March 27, 2025

5.0

Dr Marks has been my doctor for many years and I completely trust her to provide the best care possible. Dr Marks is professional, intelligent, kind and remarkable.

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

Thanks for your feedback!

March 27, 2025

5.0

She takes time to explain what I need to do to stay healthy

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

Thanks for your feedback!

March 26, 2025

5.0

Concerned and helpful

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

Thanks for your feedback!

March 26, 2025

5.0

Very caring and informative

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

Thanks for your feedback!

March 25, 2025

5.0

Very personable. Thorough exam.

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

Thanks for your feedback!

March 24, 2025

5.0

She listens very well, allowed me to go through all of my medical questions, gave me good counsel and suggestions. She is an excellent physician.

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

Thanks for your feedback!

March 23, 2025

5.0

Kept me healthy for as long as she has been my physician... 26 years. Very capable and personable. Willing to listen to, discuss, and allow you to make decisions about your own health and well being.

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

Thanks for your feedback!

March 18, 2025

5.0

Professional, friendly & efficient

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

Thanks for your feedback!

March 17, 2025

5.0

Great doctor very caring and thoughtful

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

Thanks for your feedback!

March 14, 2025

5.0

Thoughtful and smart!

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

Thanks for your feedback!

March 12, 2025

5.0

Great

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

Thanks for your feedback!

March 12, 2025

5.0

Dr Marks is thorough, friendly intelligent

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

Thanks for your feedback!

March 10, 2025

5.0

Dr. Marks is thorough, investigative with the goal of being preventative and has a great bedside manner. Probably the best doctor I have ever had.

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

Thanks for your feedback!

March 08, 2025

5.0

Dr. Marks has provided me with excellent care for many years. I trust her very much.

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

Thanks for your feedback!

March 07, 2025

5.0

Projects an image of care for her patient as an individual. See above.

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

Thanks for your feedback!

March 05, 2025

5.0

She is thorough and she takes her time with patients.

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

Thanks for your feedback!

March 05, 2025

5.0

So knowledgeable, practical and listens.

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

Thanks for your feedback!

March 03, 2025

5.0

Thank you!

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

Thanks for your feedback!

March 01, 2025

5.0

I trust Dr Marks judgement. In fact, I have referred Dr Marks to one of my prior co workers. She has selected Dr Marks as her primary care physician

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

Thanks for your feedback!

March 01, 2025

5.0

very attentive to patient, explains what's going on with patient. very personable and has genuine concern for patient's well being.

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

Thanks for your feedback!

February 28, 2025

5.0

Very thorough, smart, knowledgeable and kind. Trustworthy.

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

Thanks for your feedback!

February 27, 2025

5.0

She is the best doctor I have ever had. She listens, has a great fund of knowledge and takes time to explain the plan of care.

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

Thanks for your feedback!

February 26, 2025

5.0

She is patient, thorough, knowledgeable, and kind.

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

Thanks for your feedback!

February 25, 2025

5.0

She listens

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

Thanks for your feedback!

February 25, 2025

5.0

She is my favorite Dr of NW and is very pleasant to work with..

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

Thanks for your feedback!

February 24, 2025

5.0

Professional, caring, trustworthy.

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

Thanks for your feedback!

February 24, 2025

5.0

She takes time getting to know you and is very thorough in addressing any issues.

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

Thanks for your feedback!

February 22, 2025

5.0

Very skilled doctor with an excellent bedside manner

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

Thanks for your feedback!

February 22, 2025

5.0

She is friendly and concerned about my medical issues

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

Thanks for your feedback!

February 22, 2025

5.0

Dr marks is terrific. She quickly recognizes medical issues and recommends next steps quickly without hesitation. She has an excellent bedside manner making me comfortable and trusting of her counsel and treatment recommendations.

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

Thanks for your feedback!

February 20, 2025

5.0

I think she's a great doc! I trust and respect her. She's knowledgeable. She perceives and addresses my concerns. I feel lucky to have found her.

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

Thanks for your feedback!

February 19, 2025

5.0

Not an alarmist, very thoughtful

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

Thanks for your feedback!

February 18, 2025

5.0

"I would highly recommend Dr. Kellyn R. Marks for care. I had a great experience_she was attentive, knowledgeable, and truly cared about my well-being. I felt heard and well taken care of."

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

Thanks for your feedback!

February 17, 2025

5.0

She listens and pay attention when I am explaining an issue or body problem. She talks about solutions. I like that.

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

Thanks for your feedback!

February 16, 2025

5.0

I feel like Dr Marks genuinely cares for you as a person and your health. Answers any questions about my health I might have.

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

Thanks for your feedback!

February 07, 2025

5.0

Dr. Marks is a personable, knowledgable, professional and caring physician.

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

Thanks for your feedback!

February 04, 2025

5.0

Excellent care, listening skills, such wonderful attention to detail and to my needs and questions. I am confident I getting the quality care possible.

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

Thanks for your feedback!

January 28, 2025

5.0

I have been a patient for over 20 years. Dr. Marks is thorough, knowledgeable, efficient, pleasant, and everything you would want in a physician. I can't say enough.

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

Thanks for your feedback!

January 27, 2025

5.0

Dr. Marks is an amazing doctor!! She has an excellent bedside manner and is always concerned about my health, and making sure I understand the importance of maintaining good health.

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

Thanks for your feedback!

January 27, 2025

5.0

good.

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

Thanks for your feedback!

January 26, 2025

5.0

Punctual Professional Excellent Bedside Manners Caring

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

Thanks for your feedback!

January 26, 2025

5.0

Dr. Marks is very thorough, professional and comforting.

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

Thanks for your feedback!

January 23, 2025

5.0

She's great, honest and extremely helpful.

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

Thanks for your feedback!

January 23, 2025

5.0

Excellent care always!!

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

Thanks for your feedback!

January 22, 2025

5.0

I received great care.

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

Thanks for your feedback!

January 21, 2025

5.0

Dr Marks is just the best. Knowledgable, empathetic and helpful/proactive. I feel like she really cares and I appreciate it!

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

Thanks for your feedback!

January 20, 2025

5.0

Very knowledgeable

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

Thanks for your feedback!

January 20, 2025

5.0

She remembers all issues and comes prepared to any meeting I have with her. She listens and explains all issues and any questions I may have are answered fully

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

Thanks for your feedback!

January 19, 2025

5.0

She is very thorough, thoughtful, efficient, open and caring.

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

Thanks for your feedback!

January 14, 2025

5.0

Dr. Marks is thorough and efficient, asking questions and clearly answering questions from me.

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

Thanks for your feedback!

January 09, 2025

5.0

Dr. Marks has patience and understanding.

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

Thanks for your feedback!

January 03, 2025

5.0

Very caring and professional doctor!

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

Thanks for your feedback!

January 03, 2025

5.0

Dr Marks took time to hear all my concerns and gave me a complete exam. It was nice not to feel rushed. I switched to Northwestern after the internist I saw for decades retired. I was afraid that such a big place would be too impersonal, but that was not the case with Dr. Marks.

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

Thanks for your feedback!

January 02, 2025

5.0

She has been my Doctor for a long time. I'm always seen at my appointment time. Never long waiting

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

Thanks for your feedback!

January 01, 2025

5.0

She is genuinely caring; takes the time to listen to her patients; always asks about family

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

Thanks for your feedback!

December 31, 2024

5.0

I recommended her to my mom

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

Thanks for your feedback!

December 27, 2024

5.0

I have been seeing her since 1999. She has all the qualities of a great doctor. She is a great listener. She can put me at ease which is no small feat. She is reassuring. Her knowledge of medicine is remarkable. Her follow-through is timely.

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

Thanks for your feedback!

December 25, 2024

5.0

Excellent clinician with great listening skills.

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

Thanks for your feedback!

December 23, 2024

5.0

She is an excellent doctor, thorough and also personable. She has taken the time to know me as a person and advise me accordingly.

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

Thanks for your feedback!

December 20, 2024

5.0

I am alive today because of Dr. Marks.

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

Thanks for your feedback!

December 18, 2024

5.0

The absolute best physician. I've been a patient 20+ years. Efficient, thorough, intelligent.

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

Thanks for your feedback!

December 17, 2024

5.0

I've been with Dr. Marks for 20 years. She's the best!

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

Thanks for your feedback!

December 17, 2024

5.0

Always amazing, friendly, personalized care from Dr. Marks. She's the best! She goes above and beyond!

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

Thanks for your feedback!

December 13, 2024

5.0

Dr. Marks is an excellent physician. She is caring and really listens to her patients. I appreciate her and would highly recommend her to family and friends.

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

Thanks for your feedback!

December 11, 2024

5.0

Dr. Marks asks critical questions, listens attentively and seems to care about her patients.

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

Thanks for your feedback!

December 11, 2024

4.0

Great bedside manner

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

Thanks for your feedback!

December 10, 2024

5.0

She takes time to ask thoughtful questions

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

Thanks for your feedback!

December 08, 2024

4.0

She is easy going and easy to talk to

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

Thanks for your feedback!

December 03, 2024

5.0

She's smart. She's nice. I trust her. I believe what she says. It doesn't hurt that she saved my husband's life that one year.

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

Thanks for your feedback!

November 25, 2024

5.0

I would recommend her because she is a good doctor and know her job well.

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

Thanks for your feedback!

November 25, 2024

5.0

Dr. Marks understands the needs of her patients and is well prepared to consult on medical matters and long-term care during a visit with her.

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

Thanks for your feedback!

November 24, 2024

5.0

Straight forward, practical care and advice.

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

Thanks for your feedback!

November 22, 2024

5.0

Dr. Marks is fantastic in every way. Thoughtful, caring - sees me as a person and not just a patient.

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

Thanks for your feedback!

November 21, 2024

5.0

She is the kind of doctor everyone hopes for.

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

Thanks for your feedback!

Disclosures

Kellyn R. Marks, 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.