Allergy, Asthma and Sinus Centers
Allergy, Asthma & Immunology • Joliet, IL • 4 (Crest Hill/Joliet area, Countryside, Bolingbrook, Aurora) locations
About
Allergy, Asthma and Sinus Centers in Illinois operates multiple locations in the southwest Chicago suburbs, including Joliet, Countryside, Bolingbrook, and Aurora. The practice specializes in allergy, asthma, sinus, and immunology care, offering advanced diagnostics, personalized treatment plans, and immunotherapy options for conditions including food allergies, insect allergies, skin allergies, respiratory problems, and immunodeficiency.
Clinic Type
Allergy, Asthma & Immunology
Address
Joliet/Crest Hill location: 2228 Weber Rd Crest Hill, IL 60403; Countryside: 6412 Joliet Rd Unit 3 Countryside, IL 60525; Bolingbrook: 542 E Boughton Rd Bolingbrook, IL 60440; Aurora: 3965 75th St Suite Ste 101 Aurora, IL 60504
Phone
815-729-9900
info@aascmed.com
Opening Hours
Not published — contact the clinic to confirm hours.
Website
Services Offered
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Insurance & Payment
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Languages Spoken
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Social Media
Photos
What Patients Say
Overall sentiment across review platforms: positive
- Yelp: 3.0 on Yelp (based on limited sample) (9 reviews)
- Atly: 9.2/10 (Not explicitly stated)
Patients praise
- Knowledgeable and thorough medical staff/physicians
- Caring and attentive bedside manner
- Effective diagnosis and treatment of allergy/asthma symptoms
- Helpful explanations of medical conditions
- Availability of convenient appointment times for working patients
Common complaints
- Long wait times during peak hours
- Frustration with physician communication or perceived lack of attention in specific instances
"Love coming here. They really care and take such good care of patients. Dr Maaz has a wealth of knowledge and is so helpful to explain! Highly recommended for allergy care."
— Yelp Review (Bebe F.)"Everyone is nice but the wait can be terrible during peak hours. Apparently its quite popular doctor"
— Yelp Review (Jason F.)"Dr. Leonov took the time to add me to his schedule to help me. He is very knowledgeable and it was easy to ask him questions."
— Vitals ReviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.
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