Allergy and Asthma Treatment Center: Allergy Specialists: Glendale ...
Allergy and Immunology • Glendale, AZ
About
Allergy and Asthma Treatment Center, P.C. is a Glendale, CA-based medical practice specializing in allergy and asthma care. Services include allergy testing, asthma treatment, skin allergies, seasonal allergies, eczema, sinusitis, hives, and related treatments. The center operates across three Glendale offices (HQ at 1511 W Glenoaks Blvd, plus two other Glendale locations) and maintains a small team (2 employees listed). Website: treatallergy.com. Notable details: active practice with basic patient resources, testimonials, and patient stories. Contact: info@treatallergy.com; phone numbers available on the site.
Clinic Type
Allergy and Immunology
Address
1131 N Pacific Ave Glendale, CA 91202
Phone
818-639-8780
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Opening Hours
Monday 9:00 am to 5:00 pm; Tuesday 9:00 am to 5:00 pm; Wednesday 9:00 am to 5:00 pm; Thursday 9:00 am to 5:00 pm; Friday 9:00 am to 5:00 pm; Saturday Closed; Sunday Closed
Services Offered
Technology & Equipment
Team
Insurance & Payment
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Languages Spoken
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FAQs
Office Hours
Monday–Friday 9:00 am–5:00 pm; Saturday and Sunday closed.
Photos
What Patients Say
Overall sentiment across review platforms: positive
- Official Clinic Website: 4.95/5 stars (based on 149 reviews) (149 reviews)
- Tebra: 4.9/5 stars (based on 140 reviews) (140 reviews)
Patients praise
- Highly knowledgeable and professional doctors (specifically Dr. Demirjian and Dr. Hanley)
- Kind, attentive, and supportive office staff
- Modern, clean, and comfortable office environment
- Effective, clear communication and thorough education provided by providers
Common complaints
- Billing disputes (e.g., incorrect billing or invoicing)
- Difficulty with parking at the office location
- Minor physical discomfort during allergy testing (e.g., welts)
"She’s incredibly kind, extremely knowledgeable, and she genuinely cares for her patients. She never dismissed anything I had to say... You can really tell when someone loves what they do and that they genuinely want to help people."
— Patient review on clinic website"Very nice office, but parking is an issue. Doctor and staff are very professional and friendly. Doctor listens carefully and prescribes appropriate treatment and tests as necessary."
— Patient review on clinic websiteSynthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Dr. Jason Bellak Featured: Trelegy Generic & Asthma Care Expert — Dec 18, 2025
- Tres Byers, FNP, Family Physician | Glendale, AZ | WebMD — Jan 9, 2026
- The Face of Asthma and Allergy Treatments - PHOENIX magazine — Jun 30, 2026
- What Can Allergen Therapy in Las Vegas Do For You - Desert Oasis — Oct 13, 2025
- Managing Seasonal Allergies | Guardian Risk Management & Insurance Services — Apr 25, 2026
Information sourced from the clinic's website as of July 10, 2026.
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