St John's Mercy
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Located near the intersection of Highway K and Winding Woods, is St. John's Mercy Medical Building. It houses a plethora of medical practitioners, from family medicine to a pulmonary function lab. It also houses a fertility care center, an OB/GYN and a radiology department.
300 Winding Woods Dr, O Fallon, MO 63366
- Hours: Mon-Fri, 8 am - 8 pm; Sat, 8 am - 3 pm
- Hours: Mon - Thu, 9am - 5pm; Fri, 9am - 3pm; Sat, Sun, closed