steve kagen, m.d.

Steve Kagen MD Allergy Asthma specialist

Steve Kagen, M.D. serves Wisconsin with decades of experience in treating allergies and asthma from four allergy clinics in Appleton, Oshkosh, Green Bay and Fond du Lac. His life's work is in optimizing the health of people, especially those who suffer from the effects of allergy and asthma conditions.

His commitment to getting you better: "If you don't get better, we'll send you somewhere else." Let us show you what exceptional care is all about.

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Contact Us800-ALL-WELL®


Best allergy specialist wisconsin

Awarded U.S. Patent for the discovery of a Dust Mite Allergen

help with allergies and asthma

EPA Children's Environmental Health Recognition Award for creating The Allergy Family ® Guide, the nation’s first classroom-ready asthma and allergy education program for 5th grade students and their families.

best allergy doctor near me

Voted by Wisconsin physicians as one of the “Best Doctors in America”.

innovations created to improve the lives of allergy and asthma sufferers

kagenair ® app

Patented KagenAir – a mobile digital health app with artificial intelligence.

Discover how weather and the environment affect your health

sensitometer ® test

Created the Sensitometer ® test App to measure how sensitive you are to changes inside and outside of your body.

how sensitive are you?
Find out using the sensitometer  ®test

national pollen network ®

Created National Pollen Network ® and its associated educational website.

allerlab ®

Created a national Diagnostic Allergy-Immunology Lab – AllerLab ®.

aeroallergen photolibrary ®

Created The Aeroallergen PhotoLibrary™ of North America. A website-based audio program focused on airborne allergens at

test-yourself diagnostic

Created the first test-yourself test for AIDS in 1983 and over 100 diagnostic tests for allergy.


Public Service – United States House of Representatives. (2007 – 2010)
Authored America’s first law banning discrimination against citizens with pre-existing medical conditions to guarantee access to health care is a Civil Right – not a privilege.
Exclusive CNN Allergy Consultant (1995 – 2002)
Past Chairman of the Allergen Standardization Committee of the American Academy of Allergy, Asthma, and Immunology.


  • Awarded U.S. Patent for the discovery of a Dust Mite Allergen
  • Standardized allergen vaccines used in Allergen Immunotherapy
  • Developed new Rapid Venom Immunotherapy technique for Bee Sting Allergy
  • Discovered new Insect Allergens (Lake Fly, River Fly)
  • World’s first to successfully Clone + Express anallergenic protein in bacteria
  • Only clinic in America with polymerized ragweed and grass treatments proven to be the safest allergen injections (1996 – 2006)
  • Discovered new allergens in frog, buckwheat,eggplant, almond, and spices
  • Discovered Cross-Reactive Allergens between foods and rubber latex
  • Discovered Helicobacter pylori bacteria may cause Hives
  • Demonstrated Dust Mite vaccines do not contain Prion proteins
  • Discovered possible cause of Crohn’s Disease(Copepods)
  • The only Pollen + Mold Spore Monitoring Station in NE Wisconsin since 1992

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