Plan Your Visit To HSHS St. Elizabeth's Laboratory
HSHS St. Elizabeth's Hospital
1 St. Elizabeth's Blvd, O'Fallon
618-234-2120, ext. 21650
Hours for walk-in: Monday-Friday, 6 a.m. to 5 p.m., and Saturday, 8 a.m. to 12 p.m.
O'Fallon Medical Building
1512 N. Green Mount Road, O'Fallon
Hours for walk-in: Monday-Friday from 6 a.m. to 5:00 p.m.; Saturday, 8 a.m. to 12 p.m.
No walk-in Lab services available on Sunday.