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Allergy and Asthma Treatment Center

Allergy and Immunology • Glendale, AZ

★★★★★4.9/5289 reviews across 2 platforms

Ratings by platform

  • Official Clinic Website: 4.95/5 (149 reviews)
  • Tebra: 4.9/5 (140 reviews)

What patients say

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)

In patients' words

"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 website

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 10, 2026 — sources: [1][2][3][4][5][6][7][8].

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