Christine Y. Lee-Kim, D.O.

Benjamin Willett, PA-C

I pursued a career in medicine for the simple goal of wanting to help people. The allergy and asthma field has been the best way for me to accomplish my goal in the 10 years I have been practicing as a physician assistant. I take great pride in what I do and I truly believe in working with patients to manage their condition together. I want patients to be able to have a voice in their care and to be able to fully understand their medical conditions. My background in education allows me to teach my patients about their diagnoses, the medication they are prescribed, and ways they can better take control of their own health. I am eager and ready to help all children and adults with their allergy and asthma needs.



What's New

Allergy and Asthma Associates has established the Food Allergy Center, the first and only one of its kind in Orange County, to focus exclusively on the diagnosis and now treatment of food allergy. We are now offering oral immunotherapy. The purpose of oral immunotherapy (OIT) is to decrease your sensitivity to allergy-causing foods, so that exposure to the offending food (peanut, milk, egg, tree nuts etc.) will result in fewer and less severe symptoms in the event of an accidental exposure.


What Our Patients Say About Us

  • When I first got diagnosed with asthma it started off as exercised induced but throughout the years it became worse than that. Just a wind would make me feel like I needed to take my inhaler, a change in the weather and I had to take a breathing treatment. It was really hard especially for being an athlete, because you don’t want anything holding you back from what you love to do...


Two Locations to Serve You!


27800 Medical Center Road
Suite 244
Mission Viejo,
CA 92691

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15785 Laguna Canyon Road
Suite 100
CA 92618

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