The 5 Best Allergists in Illinois
Board-certified allergy & asthma specialists in Chicago, Normal.
If over-the-counter antihistamines aren't cutting it anymore, a board-certified allergist-immunologist can pinpoint exactly what you're reacting to and build a treatment plan — including immunotherapy that can reduce your sensitivity for good. Our editors researched allergists across Illinois and curated the five standouts below based on board certification, affiliations, peer recognition, and patient reputation. Before your visit, check today's pollen levels in Illinois so you can tell your doctor what was in the air when your symptoms flared.
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Bruce S. Bochner, MD
Northwestern Medicine
Chicago, IL
Board-certified in Allergy & ImmunologyBoard-certified in Internal MedicineSamuel M. Feinberg Professor of Medicine, Northwestern University Feinberg School of MedicineDr. Bochner is the Samuel M. Feinberg Professor of Medicine at Northwestern University and previously directed the Division of Allergy & Clinical Immunology at Johns Hopkins from 2003 to 2013. He has authored over 280 peer-reviewed publications and served as an associate editor of the Journal of Allergy and Clinical Immunology, with pioneering research on inhibitory receptors (Siglecs) on eosinophils and mast cells.
Areas of focus: Eosinophilic diseases · Mast cell disorders · Asthma · Allergic inflammation
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Christina E. Ciaccio, MD, MSc
UChicago Medicine
Chicago, IL
Board-certified in Allergy & ImmunologyProfessor of Pediatrics and Medicine, University of ChicagoSection Chief, Allergy/Immunology and Pediatric Pulmonology, UChicago MedicineFellow of the AAAAIDr. Ciaccio is Section Chief of Allergy/Immunology and Pediatric Pulmonology at UChicago Medicine and director of the Center for Food Allergy Care, Education, and Translational Research (FACET). She received the 2011 ACAAI Young Faculty Award and the 2013 Paul Henson Clinical Scholar Award, and serves on the editorial board of the Annals of Allergy, Asthma, and Immunology.
Areas of focus: Food allergy · Environmental allergy · Pediatric allergy · Translational research
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Paul A. Greenberger, MD
Northwestern Medicine
Chicago, IL
Board-certified in Allergy & ImmunologyBoard-certified in Diagnostic Laboratory ImmunologyBoard-certified in Internal MedicineProfessor Emeritus of Medicine (Allergy and Immunology), Northwestern UniversityDr. Greenberger completed his fellowship at McGaw Medical Center of Northwestern University and has practiced allergy and immunology for over 52 years, establishing himself as one of Northwestern's most distinguished clinicians. He is a co-editor of the Northwestern University Allergy-Immunology Syllabus and an authority on allergic bronchopulmonary aspergillosis.
Areas of focus: Asthma · Allergic bronchopulmonary aspergillosis · Drug allergy · Anaphylaxis
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Leslie C. Grammer, MD
Northwestern Medicine
Chicago, IL
Board-certified in Allergy & ImmunologyBoard-certified in Diagnostic Laboratory ImmunologyBoard-certified in Internal MedicineAssociate Professor of Medicine (Allergy and Immunology), Northwestern UniversityFellow of the AAAAIDr. Grammer graduated from Northwestern University Feinberg School of Medicine in 1976 and has practiced allergy and immunology for nearly 50 years at Northwestern Memorial Hospital. She is a co-author of the Northwestern University Allergy-Immunology Syllabus and has published extensively on chronic rhinosinusitis and hypersensitivity pneumonitis.
Areas of focus: Allergic rhinitis · Chronic rhinosinusitis · Hypersensitivity pneumonitis · Occupational asthma
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Dareen D. Siri, MD
Midwest Allergy Sinus Asthma Respiratory (MASA)
Normal, IL
Diplomate, American Board of Allergy and ImmunologyDiplomate, American Board of Internal MedicineFellow, American College of Allergy, Asthma & Immunology (FACAAI)Dr. Siri founded Midwest Allergy Sinus Asthma Respiratory in 2013 and has 26 years of experience in allergy and immunology, with satellite offices across central Illinois including Springfield, Peoria, and Carlinville. She received an ACAAI Clemens von Pirquet research award and was profiled in the Springfield Business Journal's 40 Under 40; she chairs the State of Illinois PANS/PANDAS Legislative Action Committee.
Areas of focus: Asthma · Chronic sinusitis · Food allergy · Biologic drug therapy · IVIG for PANDAS · Oral immunotherapy (OIT)
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How we chose the best allergists in Illinois
Our editorial team researched allergy and immunology specialists practicing across Illinois and selected these five based on:
- Board certification in Allergy & Immunology (ABAI)
- Hospital and academic affiliations with respected medical centers
- Peer recognition, including Top Doctor awards and professional society roles
- Practice reputation and years of experience treating allergy and asthma patients
- Geographic spread across Illinois's major metro areas
These listings are editorial picks, not paid placements or medical endorsements, and we have no financial relationship with any provider listed. Physician availability, insurance participation, and credentials change — always verify directly with the practice before booking. This page is for informational purposes and is not medical advice.
Frequently asked questions
How do I find a good allergist in Illinois?
Look for board certification in Allergy & Immunology, hospital or academic affiliations, and an established practice. Every allergist on this list was vetted against those criteria.
Do I need a referral?
It depends on your insurance plan, not the state. Most PPO plans let you book directly; HMO plans usually require a referral from your primary care physician.
What should I bring to my first appointment?
A list of your symptoms and when they occur, your current medications, your insurance card, and any relevant medical records. A symptom diary matched against local pollen counts is especially useful for diagnosing seasonal allergies.
Track Illinois pollen before your visit
Allergists can diagnose you faster when you know which days your symptoms flared and what was in the air. MyPollenPal tracks daily tree, grass, and weed pollen levels for cities across Illinois.