COVID-19 and flu vaccines are now available. Find out how to get them at a location near you.

Ian S. Katznelson, MD

4.9

1259 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Neurology

Secondary Specialty

Sleep Medicine

Is your insurance accepted? Select plan

Schedule Appointment

HealthBeat

Why Do I Feel Tired Mid-Afternoon?

Learn from a neurologist.

More HealthBeat Articles

Education

Medical Education:: MD, Northwestern University Feinberg School of Medicine - 1998
Internship:: McGaw Medical Center of Northwestern University - 1999
Residency:: Washington University/B-JH/SLCH Consortium - 2002
Fellowships:: Rush University Medical Center - 2003

Board Certifications

American Board of Psychiatry and Neurology - Clinical Neurophysiology (Certified)
American Board of Psychiatry and Neurology - Neurology (Certified)
American Board of Psychiatry and Neurology - Sleep 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 Lake Forest 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

4.9

4.9

1259 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 23, 2024

5.0

He listens carefully and I really feel he cares about his patient's health and well being.

Was this helpful? Yes (2) No (0)

Thanks for your feedback!

April 23, 2024

5.0

Is an expert in his field!

Was this helpful? Yes (2) No (0)

Thanks for your feedback!

April 22, 2024

5.0

He took his time and covered all the facets of my situation.

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

April 18, 2024

5.0

Very nice physician, thorough and knowledgeable. I have been seeing him for a few years now

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

April 17, 2024

5.0

See above. Also gives good explanations clear concise reasonable

Was this helpful? Yes (3) No (0)

Thanks for your feedback!

April 15, 2024

5.0

he is so thorough with his exam and took plenty of time with me. If he did this with me I am sure he does this with all of his patients. This is what most patients to look for in a doctor. Thank you!

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

Thanks for your feedback!

April 10, 2024

5.0

I have recommended him to my friends and family. See my comments above.

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

Thanks for your feedback!

April 09, 2024

5.0

In addition to what I wrote above, the employees in Neurology are always very friendly, helpful and polite.

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

Thanks for your feedback!

April 08, 2024

5.0

Very thoughtful, personable doctor with great advice!

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

Thanks for your feedback!

April 04, 2024

5.0

Dr. Ian Katznelson is a wonderful doctor and is very knowledgable.

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

Thanks for your feedback!

April 03, 2024

5.0

Excellent doctor...skilled, knowledgeable, caring, helpful, friendly.

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

Thanks for your feedback!

April 03, 2024

5.0

He listens. His Care for the patient is superb.

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

Thanks for your feedback!

April 02, 2024

5.0

Professional knowledgeable and good patient understanding

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

Thanks for your feedback!

March 27, 2024

5.0

Exceptional clinician who gave me great confidence in his care by giving me the time and consideration of my concerns and circumstances. It was very easy and comforting for me to have an open conversation about my issues with Dr. Katznelson.

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

Thanks for your feedback!

March 20, 2024

5.0

He took time to complete a thorough exam and to examine my medical records from my previous sleep doctor. His explanation of conditions and processes was thorough. He is impressive!

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

Thanks for your feedback!

March 19, 2024

5.0

He has a rare gift of listening without giving a â€œjudgementâ€ vibe. When discussing concerns, he will give suggestions, and makes sure it makes his patient comfortable before proceeding or discussing alternative ideas. There was one visit where our discussion was momentarily interrupted. He actually called later in the day to finish listening to the concern we were previously reviewing. He is most definitely in the correct field.

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

Thanks for your feedback!

March 18, 2024

5.0

Great care over the years.

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

Thanks for your feedback!

March 15, 2024

5.0

Dr. Katznelson performed a thorough examination and took the time to answer my questions in an easy to understand manner.

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

Thanks for your feedback!

March 14, 2024

5.0

He is very good doctor and have great personality.

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

Thanks for your feedback!

March 12, 2024

5.0

Heâ€™s thorough with good bedside manner.

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

Thanks for your feedback!

March 11, 2024

5.0

Dr. Katznelson is a very kind, considerate and detailed Doctor!

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

Thanks for your feedback!

March 10, 2024

5.0

He's very knowledgeable and patient and has options care if needed.

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

Thanks for your feedback!

March 10, 2024

5.0

Dr. Katznelson is a great neurologist, very thorough & kind. He spends a lot of time with you and answers all of your questions. Highly recommend.

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

Thanks for your feedback!

March 07, 2024

5.0

Dr. Katznelson is such a good dr. He takes his time and is very caring.

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

Thanks for your feedback!

March 06, 2024

5.0

Sharp doctor, efficient, understandable

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

Thanks for your feedback!

March 05, 2024

5.0

Very nice and helpful.

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

Thanks for your feedback!

March 01, 2024

5.0

I would give a score of 100 if I could! He is great.

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

Thanks for your feedback!

March 01, 2024

5.0

Dr. Ian S. Katznelson is very knowledgeable and thorough.

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

Thanks for your feedback!

February 28, 2024

5.0

He is caring and dedicated

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

Thanks for your feedback!

February 27, 2024

5.0

Dr. Katznelson always listens to all of my concerns, explains things clearly to me and spends enough time with me.

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

Thanks for your feedback!

February 23, 2024

5.0

He spends the time with you to make sure he understands the issues you are having. He is very thorough with his examination. He explains things very well and makes sure that you understand what is needed to be done to help resolve any issues that can be corrected.

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

Thanks for your feedback!

February 21, 2024

5.0

Dr. Katznelson, give me the right medical treatment because I feel much better now and my neurological problems are stable

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

Thanks for your feedback!

February 20, 2024

5.0

He sincerely cares about his patients

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

Thanks for your feedback!

February 20, 2024

5.0

Very informative, and never feel rushed

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

Thanks for your feedback!

February 19, 2024

5.0

Exelent care and very professional environment make me feel confident and answer all my medical questions .

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

Thanks for your feedback!

February 16, 2024

5.0

He cares!!

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

Thanks for your feedback!

February 16, 2024

5.0

Very knowledgable and attentive. Makes you feel like you 're his only patient.

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

Thanks for your feedback!

February 15, 2024

5.0

See previous comment plus good teacher

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

Thanks for your feedback!

February 14, 2024

5.0

Dr. Katznelson is very thorough and takes time to explain to me my issues to ensure my understanding.

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

Thanks for your feedback!

February 07, 2024

5.0

He is patient with his patients and knows how to advise what is appropriate for each patient.

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

Thanks for your feedback!

February 07, 2024

5.0

He listens carefully and answers questions in a way to easily understand.

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

Thanks for your feedback!

February 06, 2024

5.0

Great doctor

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

Thanks for your feedback!

February 05, 2024

5.0

Efficient focused

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

Thanks for your feedback!

January 30, 2024

5.0

sometimes when at a doctors office you feel like you are in a time slot and are rushed out. we did not feel this way at all with dr. Katznelson. he explained everything to us and was very patient. he received the stress we had been feeling.

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

Thanks for your feedback!

January 25, 2024

5.0

Very thorough

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

Thanks for your feedback!

January 25, 2024

5.0

Listens well, asks relevant questions, draws excellent conclusions, makes great recommendations. Well prepared, presents clear next steps. Delegates appropriately.

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

Thanks for your feedback!

January 24, 2024

5.0

Very personable. His explanations are informative and he is willing to take the time necessary to put the patient at ease.

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

Thanks for your feedback!

January 24, 2024

5.0

Addresses all issues

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

Thanks for your feedback!

January 23, 2024

5.0

He is patient and explains everything in layman terms so you fully understand what the problem is

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

Thanks for your feedback!

January 22, 2024

5.0

I found the doctor to be very thorough. He did listen to any concerns that I had and had several suggestions

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

Thanks for your feedback!

January 19, 2024

5.0

A very thorough doctor when it comes to my health and answers all my questions .

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

Thanks for your feedback!

January 18, 2024

5.0

Very professional but also cares about my input.

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

Thanks for your feedback!

January 16, 2024

5.0

Dr. Katznelson does a great job.

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

Thanks for your feedback!

January 16, 2024

5.0

All round good person that knows medicine

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

Thanks for your feedback!

January 16, 2024

5.0

Very knowledgeable and caring doctor, who explain and include me in his decisions. Very happy he is my doctor

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

Thanks for your feedback!

January 12, 2024

5.0

He seems to fill in all the blanks, very informative about his profession

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

Thanks for your feedback!

January 10, 2024

5.0

He is very polite and very knowledgeable

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

Thanks for your feedback!

January 09, 2024

5.0

I have had good treatment. I like Dr. Katznelson.

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

Thanks for your feedback!

January 09, 2024

5.0

Always thoughtful, thorough and available.

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

Thanks for your feedback!

January 07, 2024

5.0

He is knowledgeable and thorough. I feel confident in his care.

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

Thanks for your feedback!

January 05, 2024

5.0

Knowledgeable, answers your questions, doesn't rush you and very kind.

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

Thanks for your feedback!

January 05, 2024

5.0

I like him. Had him for years.

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

Thanks for your feedback!

January 04, 2024

5.0

Great doctor

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

Thanks for your feedback!

January 03, 2024

5.0

Personable. Thorough.

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

Thanks for your feedback!

January 03, 2024

5.0

He is very knowledgeable and explained everything to me

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

Thanks for your feedback!

January 01, 2024

5.0

He is a very good doctor

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

Thanks for your feedback!

December 31, 2023

5.0

Caring and knowledgeable

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

Thanks for your feedback!

December 26, 2023

5.0

Nice and explains everything.

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

Thanks for your feedback!

December 26, 2023

5.0

He has been my neurologist for many years and he has always looked out for what is best for me. He is very considerate and knows I can feel anxious at my appointment. I like his honesty and heâ€™s extremely intelligent. He also stays updated with all the new technology and medication. If he doesnâ€™t know the answer, heâ€™ll find it.

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

Thanks for your feedback!

December 25, 2023

5.0

He's the best!

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

Thanks for your feedback!

December 01, 2023

5.0

Dr Ketznelson is very knowledgeable and cordial.

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

Thanks for your feedback!

November 30, 2023

5.0

Smart, helpful, friendly, efficient

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

Thanks for your feedback!

November 29, 2023

5.0

He is very thorough, and he listens.

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

Thanks for your feedback!

November 29, 2023

5.0

Very knowledgeable

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

Thanks for your feedback!

November 28, 2023

5.0

Dr. Katznelson and his stuff were very nice, professional, and timely. Dr. Katznelson explain everything very clearly and gave very good advices.

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

Thanks for your feedback!

November 20, 2023

5.0

Very smart and thorough. Also very kind

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

Thanks for your feedback!

November 20, 2023

5.0

very smart; good communicator; works with you, giving you feedback along the way.

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

Thanks for your feedback!

November 20, 2023

5.0

He is always very professional and knowledgeable.

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

Thanks for your feedback!

November 17, 2023

5.0

Dr. Ian S. Katznelson is a very thorough and highly skilled specialist with excellent patient skills.

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

Thanks for your feedback!

November 17, 2023

5.0

Dr. Katznelson is very thorough in examining the patient, informative to the caregiver, and shows caring to both the patient and caregiver.

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

Thanks for your feedback!

November 16, 2023

5.0

caring, honest, smart, good bedside manner and follow-up care

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

Thanks for your feedback!

November 16, 2023

5.0

Thoughtful, thorough and pleasant

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

Thanks for your feedback!

November 15, 2023

5.0

Good communication

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

Thanks for your feedback!

November 15, 2023

5.0

Dr Katznelson is very knowledgeable, and caring physician.

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

Thanks for your feedback!

November 15, 2023

5.0

caring, thorough, takes time to explain issues, smart

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

Thanks for your feedback!

November 14, 2023

5.0

Great service provider

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

Thanks for your feedback!

November 14, 2023

5.0

Dr. Katznelson has helped me so much, he has gone above, and beyond. He has made sure I had every test that needed to be done to rule things out and has great bed side manner. Iâ€™m grateful for the help him and his staff have provided me. Iâ€™ve been a long time patient of his and will be for a long time. Thank you!

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

Thanks for your feedback!

November 13, 2023

5.0

Really listens and explains everything in plain language so you understand

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

Thanks for your feedback!

November 12, 2023

5.0

Dr. Kaztnelson is very thorough. He takes numerous steps to diagnose and treat your health issue. I highly recommend him!

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

Thanks for your feedback!

November 11, 2023

5.0

The doctor took one hour to discuss my situation. Very calm and detailed, tested me, offered some suggestions. Prescribed B12 vitamin after a blood test.

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

Thanks for your feedback!

November 10, 2023

5.0

Great bedside manner, listens to patient concerns. Spent time creating a plan with me. Kind

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

Thanks for your feedback!

November 10, 2023

5.0

Outstanding doctor.

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

Thanks for your feedback!

November 10, 2023

5.0

Very accepting of whatever your issues are. Interested in you as a person. Thorough.

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

Thanks for your feedback!

November 09, 2023

5.0

Dr. Katznelson is an excellent doctor. He works very hard to find out the problem and he explains things clearly. He is appreciated very much.

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

Thanks for your feedback!

November 06, 2023

5.0

Dr Katznelson and his nurse Annette were both professional and pleasant during my visit

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

Thanks for your feedback!

November 06, 2023

5.0

Very thorough and encouraging.

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

Thanks for your feedback!

November 06, 2023

5.0

He is pleasant, thorough and informative.

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

Thanks for your feedback!

November 03, 2023

5.0

Excellent Doctor

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

Thanks for your feedback!

November 03, 2023

5.0

Efficient and friendly care

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

Thanks for your feedback!

November 03, 2023

5.0

He has always been very knowledgeable in helping me in providing me with excellent care and excellent communication skills so I am able to maintain my stable health.

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

Thanks for your feedback!

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.

View More Disclosures