Call our office directly at 309-691-5200
No call centers!

Welcome to Allergy and Asthma of Illinois. With our main office in Peoria, as well as 3 conveniently located satellite offices, we are able to offer patients young and old the services they need to breathe easy.

It is important to see an allergy specialist if you or your child has:

  • a chronic cough
  • a history of wheezing or other breathing difficulties
  • been diagnosed with asthma requiring routine or frequent medicines
  • been to the ER or hospitalized for possible asthma
  • nasal congestion or drainage that needs frequent medication
  • persistent or frequent eczema / atopic dermatitis
  • a systemic reaction to stinging insects
  • recurrent infections
  • food allergy
  • hives

We welcome the opportunity to meet with you, your child, or other loved one to diagnose and treat your problem. Don’t let asthma or an allergy limit the quality of your life!

Penelope A. Ewbank, MD

  • Assistant Clinical Professor of Medicine – University of Illinois College of Medicine, Peoria, Illinois
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Stephen J. Smart, MD

• Associate Professor of Clinical Medicine, UICOMP; 1997-present
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Office Hrs:

Monday: 9:00 am – 5:00 pm | Tuesday: 9:00 am – 5:00 pm | Wed: 9:00 am – 5:00 pm | Thursday: Peoria office closed
Friday: 9:00 am – 5:00 pm | Saturday & Sunday: CLOSED

Holiday Hours: 

Thanksgiving: Wednesday November 27, office closing at 12 noon.  Must be signed in by 11:45am for allergy injections.

Thursday November 28, closed Happy Thanksgiving
Friday November 29, Office Closed

Christmas Hours: Tuesday December 24 and Wednesday December 25 – office closed.  Merry Christmas

New Year Holiday: Tuesday December 31 – office will be closing at 12 noon.  Must be signed in by 11:45 am for allergy injections.

Wednesday, January 1 – office closed.  Happy New Year!

Main Office


6615 N. Big Hollow Road Peoria, Illinois 61615

Ph: 309-691-5200

Fax: 309-691-5201

Driving Directions

Satellite Locations

Princeton Office

Perry Memorial Hospital 530 Park Avenue East, Suite 409 Princeton, Illinois

Driving Directions

Macomb Office

Medical Arts Building 527 E. Grant Street Macomb, Illinois
Driving Directions

Pekin Office

2355 Broadway Pekin, Illinois
Driving Directions

OSF Medical Group Building
(across from Parkview Golf Course)

Current Office Policy in light of Covid-19 Precautions

Now offering Telemedicine Appointments for Routine Follow ups.  Please call 309-691-5200

  • If you have a fever or other flu-like symptoms, call your PCP. We are unable to provide the necessary testing and treatment.
  • Only healthy patients are asked to come for their routine appointments
  • Routine allergy follow-up appointments can be seen or rescheduled at patient preference.
  • Asthma appointments should still be kept.
  • We are allowing allergy shot patients to wait in their cars (if they prefer) after injections as long as they have their Epipen or AuviQ and wait 30 minutes.

Read more about COVID-19 here