Phone: (618) 668-BIRD (618-668-2473)
Phone: (618) 668-BIRD (618-668-2473)
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Redbird Pediatrics is a premier pediatric practice located in O'Fallon, Illinois.
Dr. Jill Johnston and Dr. Kevin Ponciroli are board certified pediatricians with a combined 37 years of experience serving families in St. Clair County.
Become a patient today by registering on our patient portal.
Katie grew up in Glen Carbon, IL and obtained her Bachelors of Science in Nursing from Goldfarb School of Nursing at Barnes-Jewish College in 2013. She worked at Cardinal Glennon Children’s Hospital for 5 years on the Infant/Toddler Medical/Surgical unit. During that time she became a Certified Pediatric Nurse. She completed her Masters of Science in Nursing, focusing on Pediatric Primary Care, from Maryville University in 2017.
She is board-certified by the Pediatric Nursing Certification Board (PNCB). Katie has been practicing as a primary care Pediatric Nurse Practitioner in Illinois since 2019.
Katie resides in Illinois with her husband Ben, their daughter Bailey, and their son Grayson. She enjoys spending time with her family, listening to music, being outside, and swimming in their pool!

Our mission at Redbird Pediatrics is to provide personalized, high-quality healthcare. We are dedicated to improving and maintaining your child's health through preventative care and treatment of both acute and chronic medical issues.
Our Board Certified Pediatricians combine for over 30 years of experience seeing patients in St. Clair County. We offer a broad array of services geared to address today’s most common health issues and illnesses.
We know there is no such thing as one-size-fits-all cure, so we never use a one-size-fits-all approach to your child. Our goal is to improve and maintain your child's overall health and to empower you with an understanding of their growth and development.
We offer a variety of preventative care services including vaccinations, in-house routine lab monitoring, sports physicals. and wellness exams.
Our staff provides expert medical care for many acute symptoms such as ear infections, strep throat, flu, colds, and other illnesses.
You can rely on us to treat all of your children's chronic care needs, including allergies, asthma, ADHD, and other mental health issues.
Having a baby is such an exciting time. We know that every infant and family are unique, and our goal is to work together with you to keep your baby happy and healthy.
We evaluate, treat, and help facilitate a team-based approach to your child's mental health issues, ranging from ADHD to anxiety and depression.
(PLEASE DO NOT USE THIS FORM TO SUBMIT ANY MEDICAL QUESTIONS REGARDING YOUR CHILD. )
Send us a message with any questions about our practice.
793 Sunset Boulevard, O Fallon, Illinois 62269
Phone: (618) 668-BIRD (or 618-668-2473) Fax: (833) 989-2239 Email: mydocs@redbirdpediatrics.com
Office hours:
Monday - Friday: 8:30am - 5:00pm
The office is closed 12:00pm - 1:00 pm for lunch
Saturday and Sunday: CLOSED
Copyright © 2026 Redbird Pediatrics - All Rights Reserved.