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Happy Holidays – following are our holiday hours:
CLOSED - Friday, December 24, 2021
CLOSED - Saturday, December 25, 2021

Happy New Year:
OPEN: Friday, December 31, 2021  -   10:00 am – 1:00 pm
CLOSED: Saturday, January 1, 2022

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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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David J. Knysak, MD

Double Board-Certified Internal Medicine Physician

Allergies and Immunology

Dr. David J. Knysak - Oak Brooks Allergists - Allergies - Immunology - Allergist near me

David J. Knysak is a double board-certified internal medicine physician specializing in allergy treatment and immunology. He has been practicing medicine since 1982.

Education & Training

  • Medical School: Northwestern University School of Medicine in Chicago, Illinois
  • Internship & Residency Training: internal medicine, Barnes-Jewish Hospital and Washington University, both in St. Louis, Missouri
  • Fellowship Training: allergy, asthma and immunology, University of Michigan Medical Center in Ann Arbor, Michigan

Board Certifications

  • American Board of Allergy and Immunology
  • American Board of Internal Medicine

Professional Memberships

  • American Academy of Allergy, Asthma and Immunology
  • American College of Allergy, Asthma and Immunology
  • Illinois Society of Allergy, Asthma and Immunology (past president)
  • DuPage County Medical Society
  • Chicago Asthma Consortium
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Schedule your appointment with Dr. David Knysak at Oak Brook Allergists by calling (630) 574-0460 or request an appointment now.

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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.