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We’re excit­ed to announce that as of February 1, 2026, we will be mov­ing to paper­less billing state­ments to help you more effi­cient­ly receive your state­ments through email or text mes­sages and enable eas­i­er pay­ment options. If you have any ques­tions about paper­less billing, please con­tact our billing department at (630) 574-0463.

Oak Brook Allergists
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    • Downers Grove: (630) 789-0575
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    • David J. Knysak, MD
    • Raymond M. Pongonis Jr., MD
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Oak Brook Allergists Blog

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At Oak Brook Allergists, our asthma and allergy specialists offer comprehensive care for Allergic Rhinitis (Hay Fever), Asthma, Chronic Sinusitis, Eczema & Hives, Food Allergies, Pet Allergies, and Stinging Insect Allergies.