CLIA lookup
CLIA Labs in O Fallon, MO
Every lab with an active CLIA certificate at a city address, A to Z. Open a lab for its certificate dates.
70 labs in O Fallon, MO hold an active CLIA certificate in the CMS file posted October 16, 2026.
58 hold a Certificate of Waiver.
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
License: a US government work, in the public domain (Public Domain Mark 1.0).
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CLIA Labs in O Fallon, MO
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
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Questions
How many CLIA labs are in O Fallon, MO?
70 labs with a O Fallon address hold an active CLIA certificate in the CMS file posted October 16, 2026.
What certificates do O Fallon labs hold?
58 Certificate of Waiver, 6 Certificate for Provider-Performed Microscopy Procedures, 4 Certificate of Accreditation, 2 Certificate of Compliance.
What does a CLIA number look like?
Ten characters: two digits, the letter D, then seven digits (for example 45D2100035). CMS assigns one to each laboratory certificate under the Clinical Laboratory Improvement Amendments.