Alexander J. Choi, MD, MPH | Northwestern Medicine

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Reasons to Schedule a Visit

This medical professional may be a good choice for you if you are looking for care for any of the following:

Circadian rhythm disorder
Cpap evaluation
Cpap related anxiety
Daytime sleepiness
Hynagogic hallucinations
Hypersomnia
Insomnia
Narcolepsy
Night terror

Nightmares
Parasomnia
Rem behavior disorder
Restless leg syndrome
Sleep apnea
Sleep paralysis
Sleepwalking
Snoring

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Education

Medical Education:: MD, MPH, Tulane University School of Medicine - 2016
Residency:: Eastern Virginia Medical School at Old Dominion University - 2020
Fellowships:: McGaw Medical Center of Northwestern University - 2021

Languages Spoken

Korean

Board Certifications

American Board of Family Medicine - Family Medicine (Certified)
American Board of Family Medicine/Sleep Medicine - Sleep Medicine (Certified)

Faculty Profile

Clinical Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Northwestern Memorial Hospital

Palos Hospital

Ratings and Reviews

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Overall Rating

4.8

4.8

873 Ratings

Reviews from Patients

61 Reviews

Reviews from Patients

61 Reviews

February 27, 2026

5.0

Very nice,professional doctor.Good care for patients.

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February 27, 2026

5.0

He knows exactly what he is doing and talking about, an excellent physician

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February 20, 2026

5.0

He provided real solutions

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February 20, 2026

5.0

Asked good questions. Explained the process of what will come next. Used pictures online to describe what he was referring to. Was evident that he read my health file before the introductory call.

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February 07, 2026

5.0

Dr. Choi was patient, answered all my questions, and took as long as needed to talk to me. He lad out clear treatment options, explained what I could expect with each, and listened to my concerns. I felt confident that he had the information to guide me and that I was empowered to make decisions about my treatment.

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February 04, 2026

5.0

Dr. Choi was very patient focused. He took his time and was open for questions. He answered all my questions. I think he is great.

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January 21, 2026

5.0

Dr Choi always takes the necessary time to answer questions about treatment.

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January 21, 2026

5.0

He is real patient

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January 16, 2026

5.0

Good doctor

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January 14, 2026

5.0

Doctor Choi is a great Doctor because he does not rush and has good listening skills which means so much to a patient. Doctor Choi is intelligent, informative, and provided me with good references and resources to help me gain a path to well wellness.

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January 10, 2026

5.0

Thorough, Experienced.

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January 06, 2026

5.0

Great Dr

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January 05, 2026

5.0

Friendly and patient doctor

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January 04, 2026

5.0

Personable and professional

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December 31, 2025

5.0

Very nice. Explains everything clearly

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December 30, 2025

5.0

Dr. Choi listens to his patients, is interested in new as well as tried ideas, and gives suggestions. I am an apnea patient.

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December 29, 2025

5.0

He made changes for the concern i if had

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December 26, 2025

5.0

Dr Choi is excelent

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December 15, 2025

5.0

Very informative and helpful

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December 15, 2025

5.0

To the point and knowledgeable

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December 15, 2025

5.0

Really nice person, answered all my questions and very informed.

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December 12, 2025

5.0

Cutting-Edge Research, Education, Experience, Thoughtfulness

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December 08, 2025

5.0

Dr. Choi was very knowledgeable and took his time explaining my condition and treatment

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December 03, 2025

5.0

Excellent care!!

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November 13, 2025

5.0

Great doctor!!!!

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November 11, 2025

5.0

Listened well to my concerns and offered sound advice. Very excessable

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November 09, 2025

5.0

Dr. Choi listened and answered all my concerns with clarity

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November 07, 2025

5.0

Excellent

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November 06, 2025

5.0

Dr Choi works with me to create the best treatment plan that meets my needs.

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November 05, 2025

5.0

Very informative and helpful

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November 03, 2025

5.0

good doctor

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October 30, 2025

5.0

He was very knowledgeable and articulate. Additionally he explained not just what we would be doing/the next steps, but the whys and hows. He was very kind and patient with me as well. He treated me with respect.

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October 22, 2025

5.0

very personable and knowledgeable

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October 01, 2025

5.0

Dr. Choi listens to his patients and offers practical and long term suggestions.

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October 01, 2025

5.0

Very patience and polite. Since sister deaf took extra steps to type conversation and she easily responded .

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September 29, 2025

5.0

He is very patient and thorough

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September 11, 2025

5.0

Dr Choi was 5 min early to start. He was very attentive taking his time with me, very friendly and professional. Also took an extra time and effort to adjust my old CPAP. I was extremely pleased with Him

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September 04, 2025

5.0

The doctor is very qualified and thorough in his exam. He answers all my questions and explains everything in layman's terms.

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September 03, 2025

5.0

Knowledgeable, listens

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August 29, 2025

5.0

Is the best neurologo, thank you so much.

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August 27, 2025

5.0

Good doctor

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August 27, 2025

5.0

Dr Choi is very thorough and attentive. He took his time to ask and listen to my concerns.

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August 19, 2025

5.0

He is very attentive and prepared. I feel like he new what I needed,

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August 18, 2025

5.0

Dr Choi is very good in his profession and it's good to have a Dr who understands and cares about your health.

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August 15, 2025

5.0

Dr Choi is always prepared for my visits. He knows the data from my cpap and he is always ready to listen to my concerns.

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August 08, 2025

5.0

He answers all questions and explain in simple terms

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August 08, 2025

5.0

I should of prepared more , a pain list ,he spent so much time with me, I will contribute more.

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July 30, 2025

4.0

Through out visit he was quite informative

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July 27, 2025

5.0

Very professional

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July 16, 2025

5.0

Dr. Choi treated me respectfully and encouraged my input.

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July 10, 2025

5.0

Comprehensive attention; good options.

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June 28, 2025

5.0

Very knowledgeable and caring

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June 27, 2025

5.0

Either he or his nurse did a great assessment

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June 24, 2025

5.0

He is carrying

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June 20, 2025

5.0

He knows how to good ways to make me better health

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June 17, 2025

5.0

Dr Choi is very knowledgeable takes the time to listen and explain issues at hand,

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June 04, 2025

5.0

He took the time to explain everything to me.

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June 01, 2025

5.0

Got to the point. But did not spend much time with me. His assistant Dr. Donahue was terrific smart and gave us a lot of time.

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May 23, 2025

5.0

Dr Choi was very thorough and caring

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May 13, 2025

5.0

The sleep center is a peaceful environment.

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May 01, 2025

4.0

attention to detail and lots of good advice

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Disclosures

Alexander J. Choi, MD, MPH 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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