The 5 Best Allergists in Montana
Board-certified allergy & asthma specialists in Missoula, Billings, Bozeman, and beyond.
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 Montana 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 Montana so you can tell your doctor what was in the air when your symptoms flared.
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Carl E. Thornblade, MD
Montana Allergy & Asthma Practice
Missoula, MT
Board-certified in Allergy & ImmunologyFellow of the AAAAI (FAAAAI)Dr. Thornblade completed his Allergy and Immunology fellowship at Wilford Hall Medical Center in San Antonio, Texas, and received his medical degree from the University of Pittsburgh School of Medicine. He has been practicing in Missoula since 2004 and is affiliated with Providence St. Patrick Hospital, Community Medical Center, and the Veterans Affairs Montana Health Care System.
Areas of focus: Asthma · Allergic rhinitis · Food allergies · Immunotherapy
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Thomas E. Scarborough, MD
Montana Allergy and Asthma Specialists / Intermountain Health
Billings, MT
Board-certified in Allergy & ImmunologyDr. Scarborough received his medical degree from the University of Cincinnati College of Medicine and completed his allergy and immunology fellowship at Children's Hospital and Regional Medical Center at the University of Washington. He is affiliated with Intermountain Health St. Vincent Regional Hospital in Billings and has been in practice for more than 20 years.
Areas of focus: Asthma · Pediatric and adult allergy · Immune deficiency · Immunotherapy
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Michael C. DiCello, MD
Allergy & Asthma Consultants of Montana (AACMT)
Bozeman, MT
Board-certified in Allergy & ImmunologyBoard-certified in Internal MedicineDr. DiCello received his medical degree from The Ohio State University College of Medicine and completed his Allergy and Immunology fellowship at the University of Michigan. He took over Allergy & Asthma Consultants of Montana in 2011 and has built a practice serving Southwest Montana, with more than 30 years of experience in the specialty.
Areas of focus: Asthma · Eosinophilic esophagitis · Urticaria · Clinical immunology · Immunotherapy
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Elaine A. Barbieri, MD
Allergy & Asthma Care / Benefis Health System
Great Falls, MT
Board-certified in Allergy & ImmunologyDr. Barbieri received her medical degree from Wayne State University School of Medicine and is affiliated with Benefis Health System in Great Falls, Montana. She has been practicing allergy and immunology in the Great Falls area for more than 20 years and provides telehealth appointments in addition to in-person care.
Areas of focus: Asthma · Allergic rhinitis · Environmental allergies · Immunotherapy
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Donald N. Gillespie, MD
Allergy & Immunology Practice
Missoula, MT
Board-certified in Allergy & ImmunologyBoard-certified in PediatricsDr. Gillespie received his medical degree from Saint Louis University School of Medicine and completed his Allergy and Immunology fellowship at the Mayo Clinic College of Medicine and Science. He is affiliated with Providence St. Patrick Hospital in Missoula and has over 50 years of clinical experience in allergy and immunology.
Areas of focus: Pediatric allergy · Asthma · Immunotherapy
How we chose the best allergists in Montana
Our editorial team researched allergy and immunology specialists practicing across Montana 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 Montana'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 Montana?
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 Montana 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 Montana.