Top 10 pediatricians in Mission Viejo, CA
Allergy & Asthma Associates of Southern California has been recognized as one of the top Mission Viejo Pediatrics practices.

Allergy & Asthma Associates of Southern California provides relief from allergies, asthma, sinus problems, chronic cough, and other related conditions. Drs. William E. Berger, Warner W. Carr and Mark S. Sugar and staff specialize in allergy and immunology in Orange County and northern San Diego County, California. Our allergy doctors are also pediatric allergists who welcome children with allergies.

Services we provide include:
• Treatment of allergy symptoms/symptoms seasonal allergies • Oral immunotherapy • Treatment of allergies • Seasonal allergy medications • Sinus allergy medications • Diagnosis for signs of exercise-induced asthma • Treatment fo wheezing • Treatment of eczema • Testing for asthma symptoms • Food allergy treatment • Skin allergies treatment • Gluten allergy test • Peanut allergies test

We have three convenient locations in southern Orange County:
Mission Viejo and Irvine

Phone: (949) 364-2900
Fax: (949) 365-0117

Mission Viejo Office:

27800 Medical Center Road, Suite 244
Mission Viejo, CA 92691

Office Hours:

Monday 8:00am - 5:30pm
Tuesday 8:00am - 8:00pm
Wednesday  8:00am - 5:30pm
Thursday 8:00am - 8:00pm
Friday 8:00am - 5:30pm


Irvine Office:

15785 Laguna Canyon Road, Suite 100
Irvine, CA 92618

Office Hours:

Monday 8:00am - 5:00pm
Tuesday 8:00am - 5:00pm
Wednesday  8:00am - 5:00pm
Thursday 8:00am - 5:00pm
Friday 8:00am - 5:00pm


Making your care convenient:

  • Most insurance accepted & filed
  • Credit cards accepted
  • Same-day appointments
  • On the bus route

Call (949) 364-2900 to schedule your appointment today with one of our asthma doctors. You can also use our online Request an Appointment form to schedule a future appointment. We serve the communities of Lake Forest, Mission Viejo, Newport Beach, Rancho Santa Margarita, San Juan Capistsrano, Talega, Aliso Viejo, Coto de Caza, Dana Point, Irvine, Ladera Ranch, Laguna Beach, Laguna Hills and Laguna Niguel in Orange County (OC), CA.


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.

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What Our Patients Say About Us

  • I couldn’t breathe, I couldn’t do anything that I wanted to do, let alone go out and do anything athletic with my children or for myself. Then I met Dr Berger. He changed my life – he put in the time, the effort and the extra research to get me the diagnosis and the correct medications that changed my life forever!... - Linda

  • 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

Allergy & Asthma Associates of Southern California Map

15785 Laguna Canyon Road
Suite 100
CA 92618

Allergy & Asthma Associates of Southern California Map

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