COVID-19 Resource Center

Review the latest information on visitor policies, safety procedures, vaccines, and more in the COVID-19 Resource Center.

Ian S. Katznelson, MD

4.9

895 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Neurology

Secondary Specialty

Sleep Medicine

Meet The Doctor

Schedule Appointment

HealthBeat

Quick Dose: Why Do I Feel Tired Mid-Afternoon?

Learn from a neurologist.

More HealthBeat Articles

Insurance

For specific plans, see the full plan list. To be sure this medical professional is covered by your insurance plan, please contact your insurance carrier.

View More Insurance Providers

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

Media

Meet The Doctor

Meet The Doctor

December 19, 2014

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

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 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

895 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

August 30, 2022

5.0

I think Ian S. Katznelson MD is a very dedicated doctor and feel confident recommending him.

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

Thanks for your feedback!

August 25, 2022

5.0

Great, thorough and easy to talk to.

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

Thanks for your feedback!

August 24, 2022

5.0

Spent and related today

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

Thanks for your feedback!

August 23, 2022

5.0

Dr. Katznelson was very knowledgeable, thorough, patient, and personable.

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

Thanks for your feedback!

August 22, 2022

5.0

Very patient, and very thorough.

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

Thanks for your feedback!

August 19, 2022

5.0

Dr. Katznelson has helped me stay alive since 2011.

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

Thanks for your feedback!

August 18, 2022

4.0

He's kind, explained everything and answers my questions

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

Thanks for your feedback!

August 18, 2022

5.0

Un buen doctor

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

Thanks for your feedback!

August 18, 2022

5.0

Competent and always takes his time to explain and answer questions

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

Thanks for your feedback!

August 17, 2022

5.0

He listens to what I say and addresses any concerns I have.

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

Thanks for your feedback!

August 15, 2022

5.0

Knowledgeable, positive attitude, took his time with me explaining everything

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

Thanks for your feedback!

August 15, 2022

5.0

Thorough and easy to talk to

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

Thanks for your feedback!

August 13, 2022

5.0

He’s very thorough

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

Thanks for your feedback!

August 12, 2022

5.0

He seems to go into great detail about symptoms and care.

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

Thanks for your feedback!

August 11, 2022

5.0

He is a great doctor ,he listen and answer all my questions.

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

Thanks for your feedback!

August 10, 2022

5.0

Knowledgeable, personable, informative, helpful, caring

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

Thanks for your feedback!

August 09, 2022

5.0

Dr. Katznelson was very nice and very thorough in his exam, and explained everything to me.

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

Thanks for your feedback!

August 09, 2022

5.0

Dr.Katznelson is very kind, caring and goes above and beyond to meet the needs of patients!

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

Thanks for your feedback!

August 08, 2022

5.0

Very professional

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

Thanks for your feedback!

August 08, 2022

5.0

Vernon Professional and accurate.

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

Thanks for your feedback!

August 04, 2022

5.0

Very considerate and helpful.

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

Thanks for your feedback!

August 03, 2022

5.0

He is thorough and listens to you without rushing you.

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

Thanks for your feedback!

August 02, 2022

5.0

Very nice and doesn’t rush me

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

Thanks for your feedback!

July 17, 2022

5.0

I’ve mentioned in previous surveys how much I appreciate Dr. Katznelson. He provides so much knowledge and always answers every single one of my questions no matter how “dumb” I think they are. I have learned so much from him and truly appreciate his attentiveness and care every time.

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

Thanks for your feedback!

July 13, 2022

5.0

He is thorough and direct

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

Thanks for your feedback!

July 12, 2022

5.0

He is a good listener and takes the time to explain things.

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

Thanks for your feedback!

July 11, 2022

5.0

He's a talented and likable doctor.

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

Thanks for your feedback!

July 06, 2022

5.0

Very thorough.

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

Thanks for your feedback!

July 06, 2022

5.0

Very thorough. Has a comprehensive long range and immediate range views that he explains very well

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

Thanks for your feedback!

July 02, 2022

5.0

Listens very professional and comfortable visit every time

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

Thanks for your feedback!

June 30, 2022

5.0

He is smart and knows his patients well

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

Thanks for your feedback!

June 29, 2022

5.0

I felt his in depth check up was what i needed for my sleep issues. I felt his energy and expertise were utterly amazing

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

Thanks for your feedback!

June 29, 2022

5.0

Friendly, attentive, knows the breathing machine hardware available.

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

Thanks for your feedback!

June 29, 2022

5.0

Personable, makes info easy to understand.

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

Thanks for your feedback!

June 27, 2022

5.0

Dr. Katznelson is an excellent neurologist. He’s thorough, intelligent, a great listener & cares about his patients.

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

Thanks for your feedback!

June 27, 2022

4.0

Me gusto como me atendió el Dr

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

Thanks for your feedback!

June 26, 2022

5.0

Great doctor.

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

Thanks for your feedback!

June 23, 2022

4.0

Seems very thorough.

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

Thanks for your feedback!

June 22, 2022

5.0

Professional, caring and easy to talk to

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

Thanks for your feedback!

June 22, 2022

5.0

I find him easy to talk to & he is very thorough.

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

Thanks for your feedback!

June 21, 2022

5.0

Very friendly caring dr. Dr Katznelson is thorough and spends the time and gives a very thorough exam and explains things well. I highly recommend him for a neurologist

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

Thanks for your feedback!

June 21, 2022

5.0

I am impressed with the approach Dr. Katznelson uses to keep himself up to date on my test results and other clinician notations. He gives me a sense of confidence in his medical knowledge and his interest in me as a patient.

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

Thanks for your feedback!

June 21, 2022

5.0

He spends time to explain me all the tests and listen to my concerns

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

Thanks for your feedback!

June 14, 2022

5.0

Dr. Katznelson was very knowledgeable and explained everything during the procedure so that I could understand and know what to expect.

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

Thanks for your feedback!

June 13, 2022

5.0

Great knowledge and care.

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

Thanks for your feedback!

June 13, 2022

5.0

Very thorough, knowledgeable, caring and friendly .

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

Thanks for your feedback!

June 13, 2022

5.0

Very knowledgeable and thorough.

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

Thanks for your feedback!

June 09, 2022

5.0

Easy to talk to. Gives me all the information.

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

Thanks for your feedback!

June 08, 2022

5.0

Kind, compassionate & concerned about my needs.

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

Thanks for your feedback!

June 08, 2022

5.0

His knowledge.

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

Thanks for your feedback!

June 07, 2022

5.0

The doctor answers all questions you may have

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

Thanks for your feedback!

June 07, 2022

5.0

He is clearly when he is explaining what’s steps will be next and why

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

Thanks for your feedback!

June 06, 2022

5.0

Dr. Katznelson answered all my questions in detail and he did not seem rushed.

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

Thanks for your feedback!

June 06, 2022

5.0

Dr. Katznelson is very thorough.

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

Thanks for your feedback!

June 05, 2022

5.0

Listening skill thorough explanations

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

Thanks for your feedback!

June 04, 2022

5.0

Dr Katznelson is a very good listener and made me feel very comfortable. I felt like I was in good hands

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

Thanks for your feedback!

June 02, 2022

5.0

Dr. Katznelson is knowledgeable, friendly and caring.

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

Thanks for your feedback!

May 31, 2022

5.0

Dr.Katznelson was very thorough. He discussed findings with me and then suggested a plan of care. I started on that plan the same day.

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

Thanks for your feedback!

May 30, 2022

5.0

Dr. Katznelson takes time to understand the problem. He isn't satisfied until he's sure he's got the correct solution. My case was difficult and he's not afraid to get help from a second opinion.

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

Thanks for your feedback!

May 27, 2022

5.0

I like Dr. Katznelson. He is thorough and has a good manner. The support staff is excellent also.

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

Thanks for your feedback!

May 25, 2022

5.0

A new set of eyes in my care that is moving me forward.

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

Thanks for your feedback!

May 24, 2022

5.0

He was positive and very knowledgeable

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

Thanks for your feedback!

May 20, 2022

4.0

I only met him once, nothing has been resolved yet so I don’t have much to go on yet as far as a recommendation

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

Thanks for your feedback!

May 16, 2022

5.0

Liked dr

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

Thanks for your feedback!

May 14, 2022

5.0

I have had Myasthenia Gravis for the past 11years. Dr. Katznelson has helped me stay alive for 11 years.

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

Thanks for your feedback!

May 12, 2022

5.0

Very good doctor, may have to wait for appointment very busy

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

Thanks for your feedback!

May 11, 2022

5.0

Dr is beyond caring. Very patient, knowledgeable and thorough.

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

Thanks for your feedback!

May 10, 2022

5.0

My meeting went well. He was helpful, thoughtful, and explained things well. He was responsive and I assume (am hopeful) he will follow through. He gave me instructions to reach out if things didn’t progress quickly enough, which I appreciated.

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

Thanks for your feedback!

May 09, 2022

5.0

I felt like Dr. Katznelson listened to my concerns and fully explained our next steps.

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

Thanks for your feedback!

May 09, 2022

5.0

Dr. Katznelson Was Prompt, Helpful, friendly, and smart. He is everything I would hope to find in a doctor. I would recommend him to anybody who needs a neurologist.

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

Thanks for your feedback!

May 08, 2022

5.0

Seems to be thorough and listens well, leaving me feeling confident.

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

Thanks for your feedback!

May 07, 2022

5.0

Professional!

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

Thanks for your feedback!

May 06, 2022

5.0

Friendly doctor

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

Thanks for your feedback!

May 05, 2022

5.0

He is very knowledgeable and friendly.

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

Thanks for your feedback!

May 05, 2022

5.0

He is terrific

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

Thanks for your feedback!

May 04, 2022

5.0

He always listens to my concerns and does his best to address them.

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

Thanks for your feedback!

May 03, 2022

5.0

He ask me questions and ask if I had any concerns

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

Thanks for your feedback!

April 30, 2022

5.0

caring, thorough, didn't rush our appointment, and easy to talk to

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

Thanks for your feedback!

April 29, 2022

5.0

Professional, listens and helpful

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

Thanks for your feedback!

April 29, 2022

5.0

Dr. Katznelson is very professional.

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

Thanks for your feedback!

April 27, 2022

5.0

Clearly communicates —next steps in care Throughly reviews test results and past history notes by colleagues and makes recommendations Calm approach and puts me at ease as to “what next” Waits while I ask questions Clearly wants best care for me Dr’s referrals are appropriate, timely and excellent

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

Thanks for your feedback!

April 25, 2022

5.0

He was very thorough and explained his thoughts and engaged me in the plan

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

Thanks for your feedback!

April 25, 2022

5.0

Professional with time to listen and answer all questions

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

Thanks for your feedback!

April 23, 2022

5.0

He was just an amazing doctor and had all the answers to my questions and I thank him

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

Thanks for your feedback!

April 21, 2022

5.0

He is thorough, thinks outside the box, has a wonderful bedside manner, attentive, and a wonderful listener.

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

Thanks for your feedback!

April 20, 2022

5.0

Nice, gentle manner. Explains condition and treatment in easy to understand language

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

Thanks for your feedback!

April 17, 2022

5.0

He is knowledgeable, careful, and explains everything very well.

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

Thanks for your feedback!

April 15, 2022

5.0

Very satisfied with my care.

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

Thanks for your feedback!

April 15, 2022

5.0

Excellent, Caring Physician

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

Thanks for your feedback!

April 14, 2022

5.0

Detailed oriented and thorough ... kind and efficient.

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

Thanks for your feedback!

April 13, 2022

5.0

Very professional and knowledgeable

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

Thanks for your feedback!

April 13, 2022

5.0

Dr. Katz Nelson was very thorough and thoughtful during the exam and with next steps. I left feeling hopeful.

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

Thanks for your feedback!

April 10, 2022

5.0

he is a polite, caring, knowledgeable doctor.

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

Thanks for your feedback!

April 08, 2022

5.0

As far as I know he is very good. I don’t have anything to compare him to.

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

Thanks for your feedback!

April 07, 2022

5.0

I had an overall great 5 star experience.

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

Thanks for your feedback!

April 04, 2022

5.0

good doctor.

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

Thanks for your feedback!

April 01, 2022

5.0

He’s awesome, kind, honest, and very respectful! He actually actively listens to you and tries to find a solution to your concerns rather than take the easy nonchalant way out of things. For that I thank you!

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

Thanks for your feedback!

April 01, 2022

5.0

Dr. Katznelson is always extremely kind, knowledgable, professional, thorough, a great listener & gives great advice.

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

Thanks for your feedback!

March 28, 2022

5.0

Superb job of initial patient review.

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

Thanks for your feedback!

March 28, 2022

5.0

He is very thorough in his appointments. He also follows up with the relevant treatments including prescribing physical therapy. I feel like he listens to and engages with me on my health questions.

Was this helpful? Yes (2) No (1)

Thanks for your feedback!

Disclosures

Industry Relationships

Consulting / Related Activities

Faculty member engaged in activities such as speaking, advising, consulting, or providing educational programs for the following companies or other entities

Alexion Pharmaceuticals, Inc.

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