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Allergy and asthma - Lehi Clinic - Intermountain Health

Allergy and AsthmaLehi, UT

★★★★★4.8/572 reviews across 2 platforms

Ratings by platform

  • doctors.intermountainhealth.org (Lehi Clinic Allergy and Asthma listing): 4.6 (321 ratings, 14 reviews)
  • doctors.intermountainhealth.org (Jeremy S. Llewellyn, NP): 4.8 out of 5 (72 ratings, 6 reviews)
  • doctors.intermountainhealth.org (J. Thaddaeus Abbott, MD): 4.6 out of 5 (Not specified in snippet)
  • reviews.birdeye.com (J. Thaddaeus Abbott, MD): 4.3 (33 reviews)

What patients say

Patients praise

  • Helpful, patient, and kind clinicians
  • Good diagnostic confidence and listening to concerns/questions
  • Efficient experience with little to no wait and clear care plans
  • Allergy meds/treatment solutions that address patient concerns

Common complaints

  • Rude or unhelpful staff and wasted appointments
  • Dismissive/brushed-off concerns or lack of an effective life-plan for severe asthma
  • Condescending/low empathy complaints
  • Negative customer-service-style experiences reported for Intermountain Health generally
  • Billing/customer service issues reported at organization level (not specific to allergy/asthma clinic)

In patients' words

""the nurse was very rude, unhelpful, would not honor appointment made. Wasted my time and effort. Very disappointed- go elsewhere.""

localitybiz.com review excerpt under Lehi Clinic Allergy and Asthma

""Jeremy has always been a delight to work with. My son really connected with him""

doctors.intermountainhealth.org provider review snippet for Jeremy S. Llewellyn, NP

""The allergy clinic is very accommodating and efficient.""

Birdeye review excerpt for J. Thaddaeus Abbott, MD

""0% empathy, 100% ego… but still has good understanding/ logical interpretation of testing.""

Birdeye review excerpt for J. Thaddaeus Abbott, MD

""Oh my god... I always felt uneasy that... 'Severe Asthma'... been coming to this clinic... and I always felt uneasy ... brushed off each time I tried to advocate for my kid!""

localitybiz.com long negative review excerpt under Lehi Clinic Allergy and Asthma

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7][8].

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