Mercy Urgent Care - Fenton

1203 Smizer Mill Road
Suite 100
Fenton, MO 63026
Fax: (636) 717-1420
Services are provided by Mercy Hospital St. Louis Learn more »
Hours of Operation:
Open daily: 8 a.m. - 8 p.m.
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The Mercy Urgent Care in Fenton, MO is open in the South County area. Our urgent care clinic provides healthcare for adults and children. It offers extended hours to meet a patient’s busy schedule - from 8 a.m. to 8 p.m. seven days a week on a walk-in basis.

A special After-Hours Pediatric Clinic is part of this Mercy Urgent Care, staffed by pediatric nurse practitioners, for families who can’t get to their pediatrician’s office during regular business hours.

Use Mercy Urgent Care for: 

At this location, we also offer immunizations and preventive screenings.

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

Where to Go When - ER vs Urgent Care vs Convenient Care

Download our guide to help you choose the right location.

What does an urgent care treat?