Mercy Laboratory Services - Southfork

Imaging, Labs or Tests
12700 Southfork Road, Suite 150
St. Louis, MO 63128

Phone: (314) 525-1779
Fax: (314) 525-1508
Monday-Friday: 6 a.m. - 5 p.m.; Saturday, 8 a.m. - noon
Services are provided by Mercy Hospital South Learn more »

Hours of operation may be impacted due to the current COVID-19 pandemic.  Please call the number listed above or Mercy Lab Client Services 855-695-2201 to confirm current hours of operation.

Mercy South Laboratory Services offers a full range of lab testing services; more than 5,000 tests to screen for diseases, confirm diagnoses and monitor drug therapy. Laboratory test results are immediately transmitted to your physician’s office.

In addition, we also provide health screens to promote wellness and reduce health risks in the community.

Accreditations and Certifications

Every Mercy South laboratory is:

  • Accredited by the College of American Pathologists (CAP) and The Joint Commission
  • Registered with the Food and Drug Administration (FDA)
  • Certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA) program