Dr. Penelope Ewbank, allergist in Peoria, smiling in front of Springfield Clinic Peoria Allergy and Asthma on a bright day.

Penelope A. Ewbank, MD

Allergy, Asthma & Immunology

About This Provider

Originally interested in basic science research, Dr. Ewbank decided in college that a career in medicine would more directly impact people’s lives for the better. “Immunology is a fascinating science that underlies numerous diseases. With targeted treatment plans we can make a dramatic difference in people’s lives,” she says. “Patients with asthma, for example, often settle for living at a lower level. There is no reason to limit activities when you can live your fullest life with the right help.”

Dr. Ewbank received her medical degree from top ranked Washington University School of Medicine in St. Louis, Mo., followed by an internal medicine residency there at Barnes Hospital. She completed her allergy and immunology fellowship at the prestigious National Jewish Health in Denver, Colo., where she trained with internationally recognized leaders in the field. She strives to apply cutting edge medical knowledge to design individualized treatment plans with patients and their families—all balanced with a bit of humor whenever possible!

Top Areas of Focus

  • Asthma

  • Nasal allergies/sinusitis

  • Allergic skin conditions

  • Eczema (atopic dermatitis)

  • Hives

  • Angioedema

  • Food allergies

  • Stinging insect allergies

  • Medication allergies

  • Immunodeficiencies

Top 10% Patient Experience

This provider ranks in the top 10% nationally in patient experience, based on scores from the "Care Provider Overall" question on surveys completed with Press Ganey.



  • Washington University School of Medicine, St. Louis , MO


  • Internal Medicine, Barnes Hospital, Washington University, St. Louis, MO


  • Allergy and Immunology, National Jewish Medical and Research Center, Denver, CO

Board Certifications

  • Allergy and Immunology


Springfield Clinic Peoria Allergy & Asthma formerly Allergy and Asthma of Illinois

Springfield Clinic Peoria Allergy & Asthma

6615 N. Big Hollow Rd

Peoria, IL 61615

Closed • Opens at 8:00 AM