The 2 Best Allergists in Las Vegas, NV
Board-certified allergy & asthma specialists practicing in Las Vegas.
If over-the-counter antihistamines stopped working, or your symptoms run for months instead of weeks, a board-certified allergist-immunologist can test what you actually react to and treat the cause. That includes immunotherapy, which lowers your sensitivity over three to five years. Our editors picked the 2 specialists below from the wider Nevada list based on board certification, hospital and academic affiliations, and peer recognition.
Allergists in Las Vegas at a Glance
- Specialists listed:
- 2, all board-certified in Allergy & Immunology
- Areas covered:
- Las Vegas
- Practices:
- Tottori Allergy & Asthma Associates, Allergy and Asthma Center of Las Vegas
- Local pollen season:
- Olive and fruitless mulberry went into yards across the valley before Clark County banned new plantings in 1991, and the mature trees still push counts up in February and March. Bermuda grass runs spring through fall, and ragweed peaks in September.
Compare Las Vegas Allergists
| Allergist | Practice | Location | Known for |
|---|---|---|---|
| David H. Tottori, MD | Tottori Allergy & Asthma Associates | Las Vegas, NV | Pediatric and adult allergy, Asthma, Immunotherapy |
| Jason M. Bellak, MD | Allergy and Asthma Center of Las Vegas | Las Vegas, NV | Pediatric and adult allergy, Asthma, Immunotherapy |
- 1
David H. Tottori, MD
Tottori Allergy & Asthma Associates
Las Vegas, NV
Board-certified in Allergy & ImmunologyBoard-certified in PediatricsFellow of the ACAAI (FACAAI)Dr. Tottori has been in private practice in Las Vegas since 1992 and is one of the most decorated allergists in Nevada, having been named a Castle Connolly Top Doctor in 13 different years including 2024 and 2025. He is a Clinical Adjunct Associate Professor at both the University of Nevada School of Medicine and Touro University Nevada and received his training through a pediatric residency at Baylor College of Medicine and an allergy fellowship at LSU/Tulane University.
Areas of focus: Pediatric and adult allergy · Asthma · Immunotherapy · Immune disorders
Visit practice website → - 2
Jason M. Bellak, MD
Allergy and Asthma Center of Las Vegas
Las Vegas, NV
Board-certified in Allergy & ImmunologyBoard-certified in Internal MedicineFellow of the AAAAI (FAAAAI)Fellow of the ACAAI (FACAAI)Fellow of the ACP (FACP)Dr. Bellak graduated with honors from UCLA, attended medical school at the University of Nevada School of Medicine, completed his Internal Medicine residency at the Mayo Clinic, and finished his Allergy and Immunology fellowship at the University of Wisconsin-Madison. He serves as the Nevada state representative for the ACAAI House of Delegates and has been in practice for over 25 years.
Areas of focus: Pediatric and adult allergy · Asthma · Immunotherapy · Clinical research
Visit practice website →
Allergy Season in Las Vegas
Olive and fruitless mulberry went into yards across the valley before Clark County banned new plantings in 1991, and the mature trees still push counts up in February and March. Bermuda grass runs spring through fall, and ragweed peaks in September.
Bring dates to your appointment. An allergist can narrow the list of suspects much faster when you can say “this started the second week of April” and match it against what was actually in the air.
- Today's pollen count in Las Vegas for tree, grass, and weed levels plus a 5-day forecast
- Las Vegas air quality for ozone and particle pollution, which make pollen symptoms worse
Source: Clark County restrictions on olive and fruitless mulberry trees. lasvegassun.com
How We Picked These Las Vegas Allergists
Our editorial team reviewed allergy and immunology specialists practicing across the Las Vegas valley and selected these 2 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 treating allergy and asthma patients
- Coverage across the metro, so the list is not all one hospital system
These listings are editorial picks, not paid placements or medical endorsements, and we have no financial relationship with any provider listed. Availability, insurance participation, and credentials change. Verify directly with the practice before booking. This page is for informational purposes and is not medical advice.
Frequently Asked Questions
Who are the best allergists in Las Vegas?
Our editors picked 2 board-certified allergist-immunologists practicing in the Las Vegas valley: David H. Tottori, MD at Tottori Allergy & Asthma Associates in Las Vegas; Jason M. Bellak, MD at Allergy and Asthma Center of Las Vegas in Las Vegas. All are board-certified in Allergy & Immunology.
When is allergy season in Las Vegas?
Olive and fruitless mulberry went into yards across the valley before Clark County banned new plantings in 1991, and the mature trees still push counts up in February and March. Bermuda grass runs spring through fall, and ragweed peaks in September.
See today's pollen count in Las Vegas →Do I need a referral to see an allergist in Las Vegas?
That depends on your insurance plan, not your city. Most PPO plans let you book straight with an allergist. HMO plans usually want a referral from your primary care doctor first. Call the practice or your insurer before you book.
How much does an allergist visit cost in Las Vegas?
A first visit with a specialist typically runs $150 to $300 without insurance, and skin testing for a panel of environmental allergens usually adds $200 to $1,000 depending on how many allergens are tested. With insurance you pay your specialist copay, though testing is often billed separately. Ask the office for a cost estimate and their billing codes when you book.
What should I bring to my first allergist appointment?
Bring a list of your symptoms and the dates they flared, every medication you take including over-the-counter ones, your insurance card, and any past test results. Stop antihistamines 5 to 7 days before skin testing, since they can blunt the results. Confirm the exact timing with the office.
Check Las Vegas pollen levels to match your flare dates →Are these Las Vegas allergists accepting new patients?
That changes month to month, so call the practice to check. These are editorial picks, not paid placements, and we have no financial relationship with any provider listed. Verify current credentials, availability, and insurance participation directly with the office before you book.
Allergists in Nearby Cities
Before You Call
Start a symptom log this week. Note the day, what you felt, and what the pollen count was. Two or three weeks of that turns a vague “my allergies are bad” into something an allergist can work from.
- Check Las Vegas pollen levels today
- See all Nevada allergists
- Read our allergy guides on symptoms, seasons, and relief