Male physician in white coat smiling in bright outdoor setting

Stephen J. Smart, MD

Allergy, Asthma & Immunology

About This Provider

Dr. Smart’s favorite part of the allergy, asthma and immunology specialty is the ability to treat patients of all ages and really make a noticeable difference in their quality of life. “When you’re breathing easier, you’re sleeping better, you’re playing sports again,” he says, “that’s what I like most about allergy, that you actually come back feeling better.”

Dr. Smart attended Washington University School of Medicine in St. Louis, Mo., for medical school, then completed his internal medicine residency at Barnes Hospital, Washington University and his allergy and immunology fellowship at University of Iowa University Hospitals and Clinics in Iowa City, Ia. From there, he served in the US Air Force’s allergy fellowship program before settling down in Peoria. Dr. Smart’s practice focuses on determining root causes of a problem and creating education plans with patients to help them take ownership of their allergy and asthma care.

Top Areas of Focus

Dr. Smart's top areas of focus include asthma, nasal allergies/sinusitis, allergic skin conditions, eczema (atopic dermatitis), hives, angioedema, food allergies, stinging insect allergies, medication allergies and immunodeficiencies.



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


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


  • Allergy-Immunology, University of Iowa University Hospitals and Clinics, Iowa City, IA

Board Certifications

  • Allergy and Immunology