YOUR ALLERGY & ASTHMA SPECIALISTS
You can breathe easier knowing our board certified allergists, physician assistant, nurse practitioner, and registered nurses have been providing relief for allergy and asthma sufferers for over 35 years. We provide the finest in allergy care with a goal of improving our patients’ quality of life..
David J. Knysak, M.D.

Raymond M. Pongonis Jr., M.D.

Jennifer K. Catalfio, PA-C

Tammy Laas, APN, MSN, FNP-BC
RIGHT IN YOUR NEIGHBORHOOD
We know how busy you are, so we've added more office locations to fit your lifestyle. If you live in or near the Elmhurst, Naperville, Downers Grove or Plainfield, IL area chances are there is an OBA office on your way to work, school, or earrands. We want to make it easier for you to receive the allergy care you need.