Mercy Laboratory Services - O'Fallon

300 Winding Woods Drive
O Fallon, MO 63366
Fax: (636) 379-4302
Services are provided by Mercy Hospital St. Louis Learn more »
Hours of Operation:
Monday-Friday: 7 a.m. - 5 p.m.
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We offer a full range of lab testing services. Test results are immediately transmitted to your physician’s office. Patients may also have specimens collected and tested here and the results sent to a specialist in another city. In addition to routine lab tests most often requested by your physician, we also provide health screens to promote wellness and reduce health risks in our community.

Services Offered