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.
Mercy Urgent Care doctors are part of Mercy Clinic, a team of board-certified physicians that deliver care everywhere Mercy serves.