Primary Specialty
Allergy and Immunology
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Accepts your insurance
Does not accept your insurance
Based on January 2026 plan details.
Accepted plans are subject to change. To be sure this medical professional is covered by your insurance plan, please contact your insurance carrier.
Practice Focus Areas
This medical professional has a particular interest or expertise in:
Education
- Medical Education:
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MD, University of Illinois College of Medicine at Peoria - 2015
- Residency:
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Beth Israel Deaconess Medical Center - 2018
- Fellowships:
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McGaw Medical Center of Northwestern University - 2020
Board Certifications
- American Board of Allergy and Immunology - Allergy & Immunology (Certified)
- American Board of Internal Medicine - Internal Medicine (Certified)
Practice Groups and Affiliations
- Medical Group:
- Northwestern Medical Group
- Alignment Category:
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Northwestern Medicine Physician Network
- On Medical Staff At:
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Kishwaukee 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 FAQsOverall Rating
220 Ratings
Reviews from Patients
Reviews from Patients
November 08, 2025
5.0 star star star star starAll of what I said above and more. Dr Lei is an absolute treasure. She really knows what she's doing, and she cares. While so many doctors simply go through the motions, Dr Lei really tries to understand her patients' concerns. She's the best!
November 04, 2025
5.0 star star star star starDr Lei is one of my favorite doctors on my medical team. She has given me all the information I need to manage my eczema and allergy symptoms. The medical care I've received has greatly improved my quality of life. Always kind, compassionate, thorough, and professional- Dr Lei is the exact kind of doctor you would want when managing autoimmune/allergy conditions.
October 28, 2025
5.0 star star star star starDr. Lei is a very caring doctor. Every time I see her, my husband, Dr. Lei and I have a very open three way conversation on my symptoms and what I need to do to help control my symptoms. She also communicates with my pulmonologist so between the two of them I can get the best possible care.
October 15, 2025
5.0 star star star star starDr. Lei was amazing, she listened closely to my problems and my concerns. Asked really insightful questions. I also appreciated that she was doing testing based on my responses and not just testing random randomly to make money. I wish she would practice general medicine so that I could have her as my full-time doctor. The office location is easy to find, parking was sufficient, reception was polite and fast, nurse was also attentive. Would definitely recommend Dr. Lei to anyone who wanted to see you great doctor allergist.
October 03, 2025
5.0 star star star star starProfessional, and a good listener. She didn't act like she knew it all because I'm unique or just have unique situation. We'll do a few tests to see what we find out and go from there with no obligation.
July 22, 2025
5.0 star star star star starShe treated me with kindness and respect. She allowed me to ask all the questions I brought with me. She seemed very knowledgeable and she shared her information and insight sincerely. I would definitely recommend Dr. Lei and in fact I did today already.
June 22, 2025
5.0 star star star star starmy doctor was amazing. She answered all my questions and also checked all my blood work and noticed that there was something going on and I did more labs and now I am feeling so much better because of my allergy doctor.
May 05, 2025
5.0 star star star star starDr Lei is thoughtful, kind and compassionate. She listened to my many concerns and created an in-depth treatment plan. This is the best I've felt in four months and she was genuinely so happy for my progress. I'm excited for the next steps of treatment and looking forward to continuing improvements!
Disclosures
Dawn K. Lei, 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.
Northwestern Medical Group