General Practitioners

• Sinusitis
  Inflamed sinuses are commonly caused by a cold or the flu. However, sinusitis can also be the result of an allergic response, including allergy-induced asthma. In fact, you have an increased risk of chronic sinusitis if you have allergies or asthma.
• Pediatric Care
• Primary Care
  If you have an urgent medical need and need to talk to our doctors after our regular hours, please call your primary care physician. If you cannot reach your PCP, you may call our office at (630) 574-0460. A doctor is on-call 24 hours a day. Your call will be returned promptly.
• Emergency Care
  In the event of a life-threatening medical emergency, call emergency medical services at 911 immediately. DO NOT WAIT! Inform the emergency room staff that you are a patient of Oak Brook Allergists, and they will contact us.
• Pneumonia

Internists

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

Psychiatrists

• Mental Health
  This Notice of Privacy Practices describes how we may use and disclose your Protected Health Information (PHI) to carry out treatment, payment or health care operations (TPO) and for other purposes that are permitted or required by law. It also describes your rights to access and control your protected health information. "Protected health information" is information about you, including demographic information, that may identify you and that relates to your past, present or future physical or mental health or condition and related health care services.

Dermatologists

• Eczema
  If you have a family history of allergies or allergic asthma, you may be prone to developing certain skin conditions, especially in childhood. It is also true that if you have skin conditions such as eczema or hives, allergies and asthma may not be far behind. That’s because an overactive immune system response is at the root of all of these allergy-associated conditions.
• Rashes

Allergists

• Allergies
  The board-certified allergy and immunology physicians at Oak Brook Allergists are accompanied by a specially trained physician assistant, nurse practitioner, and registered nurses. Our team works together seamlessly to accurately diagnose, appropriately treat, and effectively relieve your allergy and asthma symptoms. And we get you the care you need