Kansas City Allergy & Asthma - Allergies


Kansas City Allergy & Asthma - Food Immunotherapy


Kansas City Allergy & Asthma - Asthma


Kansas City Allergy & Asthma - Allergy Injection Clinic


Kansas City Allergy & Asthma - Immune Deficiency


Kansas City Allergy & Asthma - ReadiClinic®


Kansas City Allergy & Asthma - Sinusitis


Kansas City Allergy & Asthma - Allergy Testing



5/14/21 – In order to promote the health and safety of our community, masks will continue to be required throughout the duration of your visit.

For more details on our COVID safety protocols please visit: https://www.kcallergy.com/covid-19/

Kansas City Allergy & Asthma is the metro area’s premiere provider of allergy and asthma care. We have been serving the community since 1979 with three convenient locations in Overland Park, Olathe, and Lee’s Summit. We are proud to be expert caregivers and researchers for allergy, asthma, and immunologic diseases.

Our doctors are board-certified by the American Board of Allergy and Immunology which means we are proficient, knowledgeable specialists. We make extraordinary effort to stay up-to-date through continuing education in order to bring the best, most advanced technology to our patients.

We believe that no one should suffer from allergies. We are committed to providing the best possible care for each patient. We offer individualized, targeted care for long-lasting relief or even a cure. We use a team approach to work closely with your primary care physician to diagnose and treat allergies and asthma.

We are honored and privileged to care for you and your family.

We test and treat for virtually every allergic and immunologic condition. We employ cutting-edge diagnostics and offer treatment options for:

  • All types of allergies – food, hay fever/nasal conditions, insect stings, skin, drug
  • Pulmonary problems – asthma, sinusitis
  • Immunodeficiency

Allergies impact up to 80% of children and 70% of adults with asthma. Because of the close tie between allergies and asthma, allergy treatment is often the first step in an asthma care plan.

Our many testing procedures and treatments:


  • Allergy skin test for environmental allergens and food
  • Aspirin test and desensitization
  • Exercise challenge test
  • Local anesthetic test
  • Venom test


  • Allergy injections
  • Food Oral Immunotherapy (OIT) for desensitization of food allergies
  • Infusion therapy for immunodeficiency

For established patients, we offer extensive hours for allergy injections as well as same day ReadiClinic® for urgent needs that arise.

ReadiClinic®is a same day service. Visit guidelines are:

  • For established KCAA patients only.
  • If you are concerned about symptoms/exposure to COVID-19, please call a KCAA nurse to discuss before visiting.

Overland Park ReadiClinic®

Monday – Friday
8:30a – 11:30a

ReadiClinic® Currently only in Overland Park

Kansas City Allergy & Asthma - Food ImmunotherapyEat Fearlessly with Food Oral Immunotherapy

Eliminate Food Allergies Permanently with our Oral Food Immunotherapy treatments

Kansas City Allergy & Asthma - Allergy TestingParticipate in Allergy & Asthma Research

Recruiting Adults & Children with Allergy or Asthma Symptoms for Clinical Research Studies

Kansas City Allergy & Asthma - Physician ReferralsReferring Physicians

We are honored to treat your patients. Any referral reflects your trust, and we appreciate your confidence.


2019 Top Kansas City Doctors

Congratulations to Our Top Doctors

Derrick Ward, MD
Mark Neustrom, DO
Jeffrey Wald, MD

Dr. William J. Lavery, MD, PhD

Dr. Lavery is a board-certified pediatrician with fellowship training in adult and pediatric allergy, asthma and immunodeficiency.  He treats seasonal allergies, food and drug allergies, asthma, skin diseases and disorders of the immune system. 


Location Pollen per m3 of air Mold per m3 of air
KC Metro 29 (Moderate) 10875 (Moderate)

Laser Particle Counts

Size Count per m3 of air
0.3-0.5µM 63932440
0.5-1.0µM 3912654
1 - 5µM 320568
5-10µM 22897
>10µM 954

Top 5 Pollens

Pollen Count per m3 of air Percent
Oak 10 34.48%
Unidentified Pollen 7 24.14%
Pine 6 20.69%
Other Weed Pollen 2 6.9%
Ash and Other Pollen 4 13.79%

Top 5 Molds

Mold Count per m3 of air Percent
Ascospores 4225 38.85%
Cladosporium 4175 38.39%
Basidiospores 1925 17.7%
Myxomycetes/Smuts 275 2.53%
Alternaria & other fungi 275 2.53%
Review our Coronavirus (COVID-19) statementCLICK HERE

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