Mercy Laboratory Services - Mercy Heart Hospital St. Louis

Imaging, Labs or Tests
625 S. New Ballas Road
St. Louis, MO 63141

Main Entrance: Heart Hospital entrance

Phone: (314) 251-1023
Fax: (314) 251-4971
Monday-Friday: 5 a.m. - 4 p.m.
Services are provided by Mercy Hospital St. Louis Learn more »

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, our services include health screens to promote wellness and reduce health risks in our community.

Mercy Lab is pleased to partner with Mayo Medical Laboratories for specialized and esoteric testing. Find our test catalog, specimen requirements, laboratory medicine news, interpretive guides and other information on our regional Mayo partner portal.