The 5 Best Allergists in Texas
Board-certified allergy & asthma specialists in Dallas, Georgetown, Austin, 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 Texas 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 Texas so you can tell your doctor what was in the air when your symptoms flared.
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David A. Khan, MD
UT Southwestern Medical Center
Dallas, TX
Board-certified in Allergy & ImmunologyFellow of the American Academy of Allergy, Asthma and Immunology (FAAAAI)Professor of Internal Medicine, UT Southwestern Medical CenterPast President, American Academy of Allergy, Asthma and Immunology (AAAAI), 2022–2023AAAAI Distinguished Clinician Award recipientACAAI Distinguished Fellow Award recipientDr. Khan is a Professor at UT Southwestern Medical Center and served as President of the AAAAI from 2022–2023. He trained at Mayo Clinic and has authored over 300 publications; his research focuses on drug allergy, refractory chronic urticaria, and asthma with comorbid mood disorders. He also directs the Allergy & Immunology fellowship training program and the Asthma Clinic at Parkland Memorial Hospital.
Areas of focus: Drug allergy · Asthma · Chronic urticaria · Allergy & Immunology fellowship training
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Sheila M. Amar, MD
Allergy & Asthma Center of Georgetown
Georgetown, TX
Board-certified in Allergy & ImmunologyFellow of the American Academy of Allergy, Asthma and Immunology (FAAAAI)Fellow of the American College of Allergy, Asthma and Immunology (FACAAI)Clinical Assistant Professor, Department of Internal Medicine, Texas A&M Health Science CenterTexas Super Doctors Hall of Fame (10 consecutive years)Dr. Amar graduated from Washington University in St. Louis and Baylor College of Medicine, then completed her fellowship at National Jewish Health/University of Colorado Denver. She has been named a Texas Super Doctor by Texas Monthly every year since 2015 and was inducted into the Super Doctors Hall of Fame in 2024 after 10 consecutive years of recognition.
Areas of focus: Adult and pediatric allergy · Asthma · Food allergies · Immunotherapy
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Thomas F. Smith, MD
Greater Austin Allergy, Asthma & Immunology
Austin, TX
Board-certified in Allergy & ImmunologyBoard-certified in PediatricsBest Doctors in America (listed since 1994)Texas Super Doctor (listed since 2003)Former Professor of Pediatrics, Washington University School of MedicineFormer Director, Allergy & Immunology Training Program, Emory University School of MedicineDr. Smith earned his MD from the University of Virginia and completed fellowship training at National Jewish Hospital. He previously served as a Professor of Pediatrics at Washington University and Director of the Allergy & Immunology training program at Emory, and has been continuously listed in Best Doctors in America since 1994.
Areas of focus: Pediatric and adult allergy · Asthma · Food allergies · Clinical immunology
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David B. Engler, MD
The Allergy Clinic
Houston, TX
Board-certified in Allergy & ImmunologyFellow of the American Academy of Allergy, Asthma and Immunology (FAAAAI)Fellow of the American College of Allergy, Asthma and Immunology (FACAAI)Former member, Board of Regents, American College of Allergy, Asthma and Immunology (two terms)Former Chairman, Allergy & Asthma Specialty Area, Texas Medical AssociationDr. Engler is a Phi Beta Kappa graduate of the University of Texas at Austin and completed his medical training at Baylor College of Medicine, followed by his fellowship at the University of Texas Medical Branch at Galveston. He has been recognized as Best Allergist/Immunologist in Houston by H Texas Magazine and as a Texas Super Doctor by Texas Monthly, and has been with The Allergy Clinic since 1991.
Areas of focus: Adult allergy · Asthma · Drug allergy · Immunotherapy
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Robert M. Ramirez, MD
Certified Allergy & Asthma of San Antonio
San Antonio, TX
Board-certified in Allergy & ImmunologyFellow of the American College of Allergy, Asthma and Immunology (FACAAI)Dr. Ramirez earned his MD from the University of Puerto Rico School of Medicine and completed his Allergy & Immunology fellowship at the University of Texas Medical Branch in Galveston. He has been practicing in San Antonio since 2009 and has been an investigator in over 60 clinical trials, publishing in peer-reviewed journals on a range of allergic and immunologic conditions.
Areas of focus: Rhinitis · Sinus disease · Drug allergies · Food allergies · Asthma · Clinical research
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How we chose the best allergists in Texas
Our editorial team researched allergy and immunology specialists practicing across Texas 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 Texas'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 Texas?
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 Texas 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 Texas.