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Allergist and Immunologist in Phoenix
Allergy Asthma Clinic2025-03-26T02:31:37+00:00

The Premier Allergists & Immunologists in the Phoenix Area

Dr. Leyko, Dr. Gaefke, and Dr. Couch are committed to providing the highest quality care for Allergy and Asthma conditions. They will help you get back to enjoying life again!

Established in 1969, Allergy Asthma Clinic is Arizona’s first and foremost medical practice dedicated solely to the diagnosis and treatment of asthma, allergy, and immunodeficiency. Serving the Phoenix area for over fifty years, our award-winning team of physicians and nurses works closely with each patient to provide the most up-to-date diagnostics and individualized treatments. Our doctors and staff are not only at the top of their medical field but are also committed to improving the lives of those who suffer from allergies and asthma. All of our allergy specialists are board-certified and involved in the education of medical students and residents. This commitment has helped us become one of the nation’s leading centers for the diagnosis and treatment of asthma, allergy and immunodeficiency.Meet Our Doctors

Allergists and Immunologists in Phoenix, AZ

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    More Patient Reviews What Our Patients Are Saying...
    Best experience at a Dr.'s office so far. Dr. Leyko was very patient and thorough. He took a lot of time with me and answered so many of my questions. I left there having answers. The entire staff was extremely friendly. I would and will highly recommend his practice.
    — Liza R.
    Dr. Leyko and his staff were supremely professional. Dr. Leyko actually gave me the opportunity to speak and he listened! Long story short, if you have breathing challenges in Arizona make an appointment!
    — John S.
    I came in with a horrible rash. Never have I been allergic to anything until I moved in a new neighborhood where a lot of plants were blooming. My allergy specialist was amazing. I'm extremely pleased with my visit.
    — Penny M.
    This clinic literally changed my life. I have never been healthier since I can actually eat food and get my metabolism under control. Life is good. Thanks to this group of kind and knowledgeable people.
    — Matt C.

    Four Phoenix Area Offices 602.277.3337

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