Respiratory Virus and Vaccine Information

Katherine S. Ritter, MD

4.9

1402 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Immediate Care

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Immediate Care

Education

Medical Education:: MD, Medical University of the Americas - 2011
Residency:: Adventist LaGrange Memorial Hospital - 2015

Languages Spoken

French
German
Sign Language
Spanish

Board Certifications

American Board of Family Medicine - Family Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage 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

4.9

4.9

1402 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 27, 2026

5.0

Shes very nice and explains very well

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February 26, 2026

5.0

The doctor was fabulous. She took time to check several things. She asked lots of questions and explained things to me thoroughly. She never seemed rushed and even saw me twice during this visit. I felt like she really cared about my health. This was a surprisingly exceptional experience that exceeded my expectations.

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February 26, 2026

5.0

Dr. Ritter was very helpful, kind and got me what I needed.

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February 24, 2026

5.0

She was very caring, understanding & thorough. Not only was she time efficient she also made sure all my questions were answered & addressed. She truly went above & beyond in the limited time we spoke. I truly hope everyone can get to speak with her because they will be beyond satisfied with their care. Katherine thank you so much!

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February 24, 2026

5.0

She was informative, compassionate and professional which made this a great visit. Thank you!

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February 23, 2026

5.0

Kind, very knowledgeable, communicative in simple terms, gentle, fast, caring

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February 23, 2026

5.0

Very nice and thorough.

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February 23, 2026

5.0

She was very knowledgeable and friendly. Explained everything clearly and took her time.

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February 22, 2026

5.0

Kathrine handled me so carefully, there was no judgment, she listened to every question I had and addressed them all. She clearly knew what she was talking about. And she made care so accessible. Even thought to send over today's medical report to my foot doctor that I'm scheduled to follow up with two weeks from now.

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February 20, 2026

5.0

She was very helpful and explained the tests she was doing and why.

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February 19, 2026

5.0

Very personal

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February 19, 2026

5.0

She was extremely helpful!! Very knowledgeable in her work! She explained everything in detail and I felt very comfortable with her!

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February 18, 2026

5.0

Genuinely interested in patient and providing the best care for the patient.

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February 17, 2026

5.0

Took time to answer my questions

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February 16, 2026

5.0

She was very kind and informative. Felt safe and not worried about the outcome with the care she provided.

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February 16, 2026

5.0

She listen and had great communication skills!

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February 16, 2026

5.0

Excellent doctor. Very kind and thorough in her explanations.

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February 13, 2026

5.0

Dr. Ritter was very professional, but great empathy & wanted to find the right solution.

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February 13, 2026

5.0

She was very personable and helpful.

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February 13, 2026

5.0

Dr. Ritter was great. She was thorough, kind, and very knowledgeable.

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February 13, 2026

5.0

She was so thorough and I felt she really cared about me.

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February 09, 2026

5.0

She was thorough and listened.

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February 09, 2026

5.0

She listens.

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February 08, 2026

5.0

I was very comfortable speaking to her about my medical condition. She was concerned, which I appreciate.

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February 06, 2026

5.0

I was frazzled and she was calming and kind. Understanding with complications with my first video call, cause I'm old!

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February 06, 2026

5.0

I highly recommend Katherine S. Ritter MD for care. She's pleasant and very professional!

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February 04, 2026

5.0

She is very knowledgable and makes you feel supported about your concerns

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February 04, 2026

5.0

Great Doctor

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February 04, 2026

5.0

One of the sweetest doctors I've ever had the pleasure of meeting

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February 02, 2026

5.0

She was thoroughly and professional and knowledgeable.

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February 01, 2026

5.0

Very Professional, kind, caring and listened to my care needs.

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January 30, 2026

5.0

Very thorough and kind.

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January 30, 2026

5.0

Very helpful

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January 30, 2026

5.0

Dr. Ritter did a great job and provided outstanding care. She was kind, patient, and took the time to make sure all my concerns were addressed. I truly appreciated her support.

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January 30, 2026

5.0

Great doctor! Just went home and grabbed my husband to bring him in.

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January 30, 2026

5.0

Dr. Ritter was exceptionally kind and personable and easy to talk with. She explained everything very clearly and addressed my situation in a timely manner.

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January 30, 2026

5.0

She was very friendly and informative.

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January 30, 2026

5.0

I loved this Doctor's performance today, she is so relaxed with her level of care made me my sons visit very comfortable tonight.

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January 28, 2026

5.0

She was very caring and helpful.

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January 25, 2026

5.0

She was very kind and calm. She made my kids feel at ease.

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January 25, 2026

5.0

Very professional and helpful.

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January 25, 2026

5.0

She was supported and was to give me additional suggestion

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January 25, 2026

5.0

Thoroughly listened to my symptoms and my concerns.

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January 24, 2026

5.0

I just love seeing Dr Ritter! She helped with my broken toe a few years ago and again now with my latest issue. She is amazing. :-)

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January 24, 2026

5.0

She was friendly, respectful and knowledgeable.

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January 22, 2026

5.0

Dr. Ritter was kind, thoughtful. She listened and treated me according to my needs.

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January 20, 2026

5.0

She is really kind and helpful, she tried her best to help me although uninsured, she was careful and very patient

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January 20, 2026

5.0

Very friendly and very professional. Made me very comfortable with her assessment.

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January 19, 2026

5.0

Very explanatory, very helpful, listened to all my symptoms

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January 19, 2026

5.0

Dr. Ritter was kind, thorough, and very professional. I felt heard and well cared for.

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January 17, 2026

5.0

The care that Dr.Ritter provided to me, was a great example of a physician having a passion for their job. She actively listen, address, and treated all my symptoms. She also made sure I was cared for at my visit. I wasn't discharged, until I felt a little comfortable. Which was highly appreciated. I never experienced such care at a ICC. Thank you! Dr. Ritter

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January 14, 2026

5.0

Very caring, very kind and sweet and get out of her way to make sure I was properly treated and diagnosed.

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January 14, 2026

5.0

Compassionate and knowledgable Patient and understanding

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January 14, 2026

5.0

She is very kind, it is important to speak with someone that is attentive and comfortable to speak with.

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January 13, 2026

5.0

She was quite professional and personal

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January 13, 2026

5.0

Very reasonable in her approach.

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January 13, 2026

5.0

She's very kind. She's a lovely person and makes you feel good. I felt very comfortable with how she treated me. She communicates very well with patients. She explains everything. She treated me very well.

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January 13, 2026

5.0

She was friendly, helpful and gave me good advice.

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January 12, 2026

5.0

Quick and easy appointment. Friendly employees

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January 11, 2026

5.0

Doctor Ritter was awesome. I cannot speak highly enough. She had great compassion, she seemed to really care and took the time to explain what was going on with my situation and what next steps would be.

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January 11, 2026

5.0

Very personable, knowledgeable and explained easily her examination of me and my issue

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January 10, 2026

5.0

Because he cares about his patients

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January 10, 2026

5.0

Dr. Ritter takes the time to thoroughly examine the patient, evaluate the information, and prescribe the best next steps. Dr. Ritter is a great doctor. I am blessed that she took such good care of me, and I appreciate the Dr. and her nurse, Pam.

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January 07, 2026

5.0

For all of the reasons above and more. Her communication was clear, firm and she repeated herself for my benefit on the important information so that I was fully ready for a somewhat stressful situation of my son getting stitches. That being said, it was not stressful at all due to the level of care and attentiveness. I trusted the team completely.

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January 06, 2026

5.0

She was amazing. She listened to the problems I was having, discussed my perspective, and together discussed course of treatment. She also made sure that I knew how to contact her if the problem became worse. She was very informative, compassionate, and helpful.

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January 06, 2026

5.0

Friendly and kind

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January 06, 2026

5.0

Dr Ritter was very professional and explained procedures and treatments in great detail. I can tell she really cares about her patients

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January 06, 2026

5.0

Doctor Ritter did a great job explaining things to me and talking about my care plan in detail. She took her time with me, was thorough in her knowledge, and gave me preventative care that made sense.

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January 06, 2026

5.0

Dr. Ritter was very compassionate and super helpful. She took the time to listen to how I was feeling and get the big picture of everything. She checked on me and brought me water while I was waiting for my xray which was very thoughtful.

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January 04, 2026

5.0

The Dr is amazing. She was wonderful taking care of me, explaining everything. I love her.

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January 04, 2026

5.0

Took the time to listen and to explain

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January 04, 2026

5.0

Katherine Ritter MD was extremely professional and helpful. Asked thoughtful questions regarding my symptoms. Highly recommended.

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January 04, 2026

5.0

I have never experienced a doctor who was so kind. Very few doctors seem like they actually want to listen as much as DR. Ritter. I feel so heard.

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January 03, 2026

5.0

Dr. Ritter had a kind and caring way about her. She was also very knowledgeable and helpful!

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December 27, 2025

5.0

The doctor on duty was one of best I have been able to see. So kind and explained everything even before doing it.

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December 26, 2025

5.0

Easy to schedule an appointment; Dr. Ritter was pleasant and efficient. I appreciated her thoroughness and her follow-through.

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December 26, 2025

5.0

Gave me prescription that works.

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December 26, 2025

5.0

The doctor was a very nice person and my daughter and I didn't have to wait long.

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December 26, 2025

5.0

I wish she was my primary care doctor or OBGYN. She was very helpful and very personable.

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December 26, 2025

5.0

Knowledgeable, thorough, patient

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December 26, 2025

5.0

Amazing doctor! Went above and beyond to ensure I received the best care possible. Very passionate and caring!

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December 26, 2025

5.0

Explains clearly everything. Very polite

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December 26, 2025

5.0

She is so professional and very knowledgeable. She took the time to explain my condition and treatment options clearly, answered all my questions, and made sure I was comfortable every step of the way.

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December 25, 2025

5.0

She was very thorough, helpful and kind.

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December 24, 2025

5.0

She genuinely cares

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December 22, 2025

5.0

Dr. Katherine Ritter is so caring and I had a great experience interacting with her. She greets people with warmth and compassion. Front desk staff are all very friendly and helpful as well. Makes me feel always wants to choose this location for my urgent care visits.

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December 22, 2025

5.0

She was kind and complete and knew just what to do. We had some technical difficulty and she was patient and persistent with sending new links.

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December 22, 2025

5.0

She's a wonderful doctor

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December 21, 2025

5.0

She was clear and solved all my doubts.

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December 21, 2025

5.0

She was super sweet and efficient, listened to my concerns in a timely manner

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December 20, 2025

5.0

She listened to my concerns and was very thorough in taking care of me.

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December 19, 2025

5.0

Dr. Ritter is very knowledgeable and kind. She listens to your concerns and is very reassuring when giving treatment!

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December 19, 2025

5.0

Kind and thorough

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December 18, 2025

5.0

She was very good at the entire visit glad I didn't have to wait two hours loved it

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December 17, 2025

5.0

She is very kind and helped me with the problems I was having, and gave me exceptional service.

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December 17, 2025

5.0

Very professional and extremely knowledgeable and personable

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December 17, 2025

5.0

She was very thoughtful and made sure to explain everything in detail. She was very kind and made me feel welcomed

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December 17, 2025

5.0

Very polite and attentive

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December 16, 2025

5.0

Dr Ritter had great bed side manners. She was caring and wanted to help me even though we didn't know what the cause was.

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December 16, 2025

5.0

Very knowledgeable professional.

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Disclosures

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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