Mercy Urgent Care - O'Fallon

300 Winding Woods Drive
Suite 100
O Fallon, MO 63366
Fax: (636) 379-4328
Services are provided by Mercy Hospital St. Louis Learn more »
Hours of Operation:
Open daily: 8 a.m. - 8 p.m.

Accidents and illnesses can happen anytime – even when your regular doctor may not be available. With Mercy Urgent Care in O'Fallon, MO, you can walk in without an appointment and get the medical attention you need at a lower cost and with a shorter waiting time than in your local emergency room.

Use urgent care for: 

Remember: Urgent care is not a substitute for the ER. If your symptoms are life-threatening, call 911 immediately.

Services Offered

Our Providers

Stephanie Diane Bauerle, DO, Internal Medicine, Mercy
Internal Medicine
Mercy Clinic
Randi H. Becker, MD, Family Medicine, Mercy
Family Medicine
Mercy Clinic
 | Offers E-Visits
What is an E-Visit?
Ann Marie Byrd, NP, Emergency Medicine, Mercy
Emergency Medicine
Mercy Clinic
Divya Kushwaha Chauhan, MD, Family Medicine, Mercy
Family Medicine
Mercy Clinic
Chereka Shantae Kluttz, DO, Family Medicine, Mercy
Family Medicine
Mercy Clinic
Edward J. Kunst, MD, Internal Medicine, Mercy
Internal Medicine
Mercy Clinic
Behrad Majidi, MD, Internal Medicine, Mercy
Internal Medicine
Mercy Clinic
Adam Paul Pasternak, DO, Family Medicine, Sports Medicine, Mercy
Family Medicine
Sports Medicine
Mercy Clinic
Brooke Elizabeth Salas, FNP, Internal Medicine, Mercy
Internal Medicine
Mercy Clinic
 | Offers E-Visits
What is an E-Visit?
Ashalatha R. Tatineny, MD, Emergency Medicine, Mercy
Emergency Medicine
Mercy Clinic
Linda K. Therkildsen, DO, Family Medicine, Mercy
Family Medicine
Mercy Clinic
Heather Carolyn Williamson, DO, Family Medicine, Occupational Medicine, Mercy
Family Medicine
Occupational Medicine
Mercy Clinic
Linda R. Winterberger, DO, Family Medicine, Mercy
Family Medicine
Mercy Clinic
Evelyn Weatherford Young, MD, Urgent Care, Mercy
Urgent Care
Mercy Clinic