Patient Reviews

I had a very good experience. They took the time to call me when insurance rejected the claim for my daughter's visit, then they resubmitted the claim and called me when it was approved. I really appreciated this because usually you only get a call when something is wrong. But the staff at this office called me with good news, which was a relief and also very considerate.

~ Brandee M.

Every Dr, Nurse, Tech and Receptionist has been friendly and helpful. Our questions are always answered and we finally are understanding our allergies and asthma!

~ Heather R. B.

Dr. Hahn was very patient with my daughters. Also, very thorough and easy to understand. Staff was helpful and friendly.

~ Krystyne Z.

Allergy Crystal Lake - Fan Choice Aword Dr. Hahn

Advanced Allergy & Asthma Associates

Food Allergy Center of Illinois

The team at Advanced Allergy & Asthma Associates/Food Allergy Center of Illinois would like to thank you for visiting our website. Our highly trained, caring, physicians and staff are dedicated to helping children and adults with allergies rediscover the joy of feeling good and living life to the fullest. We are proud to serve residents of Northern Illinois with three convenient locations – Lake Barrington, Crystal Lake, and Elgin.

Let us help you

Do you or your child suffer from asthma, nasal congestion, sneezing, wheezing, itching, watery eyes, rashes, or other allergy symptoms? When your body rejects common substances such as foods, pollen, pet dander, medications, or metals, you lose. We understand the toll that uncontrolled allergies can take on your health and quality of life, and we want to help.

You are neither alone nor helpless in your battle against allergy symptoms. Accurate diagnosis is the first step to taking your life back. Diagnostic procedures such as food allergy testing and lung function testing are used to determine the nature of the problem. Once your allergic triggers have been precisely identified, avoiding them becomes possible. Even better, many allergies can be eliminated or controlled with treatments such as immunotherapy allergy treatment.

Our commitment

Every member of our team shares one common goal – and that is helping you. We are dedicated to providing quality care, delivered with compassion in a comfortable environment. The rapidly changing face of medical care has left many people feeling forgotten, rushed through busy offices like an item in a factory assembly line. We strive to provide a very different kind of experience.

Our patients are not numbers to us. They are real human beings, whose lives and families are being devastated unnecessarily. We know that allergies and asthma can be miserable, debilitating, and even life threatening. Our knowledgeable staff is always happy to answer your questions, and help you in any way possible. We know that personal attention, honest answers, customer service, and attention to detail can make all the difference in your medical care.

We want you to know that help is available, from trained professionals who care about you. There is a place where you will be treated with respect and dignity. There are actually three places – the offices of Advanced Allergy & Asthma Associates/Food Allergy Center of Illinois, located in Elgin, Crystal Lake, and Lake Barrington. Please, let us help you enjoy the quality of life that you deserve. Call (847) 888-8802 and schedule a consultation today. Allergist Crystal Lake IL - Helping Live Better