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 allergists William Johnson, M.D. and Rabya Mian, M.D. are 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
636-561-5707 for the O'Fallon 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."

Dr. Johnson practices at the Belleville & Tesson Ferry Locations.

Dr. Rabya Mian

Rabya Mian, MD

"I treat children and adults with asthma, allergy and immunology problems. As your physician, my goal is to spend time listening to you and to concentrate on your individual health needs. I will do my best to address your concerns and through my medical care, help you live a healthier life."

Dr. Mian practices at the O'Fallon Location.

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:

Dr. Johnson's office locations:

South St. Louis County
12818 Tesson Ferry Rd
Suite 205
St. Louis, MO 63128
Email South County Office
Directions provided by MapQuest


Belleville, Illinois
2900 Frank Scott Parkway West
Suite 914
Belleville, IL 62223
Email Belleville Office
Directions provided by MapQuest

Dr. Mian's office location:

O'Fallon, Missouri
9101 Phoenix Village Pkwy.
O'Fallon, MO 63368
Email Winghaven Office
Directions provided by MapQuest

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

Emergency/After Hours for all locations: