Welcome to Gateway Asthma and Allergy Relief

In 2009, St. Louis was named our nation's "Asthma Capital." But for more than 20 years, asthma and allergy sufferers in our area have found significant relief for their symptoms at Gateway Asthma and Allergy Relief.

Board-certified allergist William Johnson, M.D. is dedicated to finding and treating the causes of patient allergies.

Gateway maintains an important same-day callback policy to connect you personally with your allergist. Urgent requests and phone calls receive a rapid response.

Your physicians value patient education, frequent communication and customized care plans as the foundation for long-term success. Many patients achieve their ultimate goal of living virtually symptom-free.

Electronic record-keeping and prescription writing improve patient care by ensuring maximum accuracy and accessibility.


For more information or to schedule an appointment, call:
618-277-1413 for the Belleville area or
314-421-0663 for the South St. Louis County area.


 Dr. William Johnson

William Johnson, MD

"Medicines and monitoring techniques have come a long way in the past few decades. Today, most asthmatics can live full and very active lives. Helping each patient learn to recognize their individual asthma or allergy triggers is key to treating, and even more important, preventing, future attacks. Empowering them through education and observation is one of the most exciting aspects of my work. Seeing them succeed in leading normal lives is the most rewarding."

 Katie Shine FNP


Katie Shine, FNP

Katie is a board certified Family Nurse Practitioner with a particular interest in the Pediatric population. She is a Certified Asthma Educator and strives to provide quality asthma and allergy education to her patients and their families to help keep them well!


Register on our contact page to inform us of your allergy needs.

Browse our website for helpful educational articles, today's pollen counts for the St. Louis area, or request additional information.


Convenient Metro Area Locations:

South St. Louis County
12818 Tesson Ferry Rd
Suite 205
St. Louis, MO 63128
314-421-0663
Email South County Office
Location Map

Emergency/After Hours for all locations:
314-868-7700

Belleville, Illinois
2900 Frank Scott Parkway West
Suite 914
Belleville, IL 62223
618-277-1413
Email Belleville Office
Location Map

You may download registration forms to save time in the office.