Mercy broke ground on a new 16,500-square-foot facility in O'Fallon earlier this week.
The new building is expected to be complete in the spring of 2013 and will be located near WingHaven at 2223 Technology Dr.
The Mercy Clinic will feature lab and x-ray services, as well as pedatricians and adult primary doctors' offices.
“We want to make health care more convenient, and closer, for our patients in St. Charles County,” Donn Sorensen, Mercy East region president, said in a news release.
In 2011, Mercy announced plans to spend $2.4 billion on new facilities in St. Charles County and Chesterfield over the next eight years.
Mercy opened an outpatient center at 1820 Zumbehl Rd. in St. Charles in September. The facility include clinics for family medicine, internal medicine, heart and vascular and maternal and fetal health.
An office also opened in Wentzville in November. According to the Mercy website, the clinic is located at 1502 West Meyer Rd.