CLIA lab

CLIA 19D1018260: Katherine L Williams, MD

Covington, LA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.

CLIA number 19D1018260 belongs to Katherine L Williams, MD in Covington, LA.

Certificate for Provider-Performed Microscopy Procedures, effective July 15, 2025, expires July 14, 2027.

Active in the CMS Provider of Services file posted October 16, 2026.

Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page

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Certificate

Certificate type
Certificate for Provider-Performed Microscopy Procedures
Certificate effective
July 15, 2025
Certificate expiration
July 14, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
October 17, 2003
Facility type
Physician office
Ownership (control type)
Proprietary
Lab classification
CLIA laboratory

Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page

Lab and contact

CLIA number
19D1018260
Lab name
Katherine L Williams, MD
Address
104 Innwood Drive, Covington, LA 70433
Phone
(985) 249-7022
Fax
(985) 249-7048

Annual test volume the lab reported

Waived tests
7,004
Provider-performed microscopy tests
10
Total
7,014

Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.

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Questions

What is the CLIA number for Katherine L Williams, MD in Covington?

19D1018260, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Katherine L Williams, MD hold?

A Certificate for Provider-Performed Microscopy Procedures, according to the CMS file.

When does CLIA 19D1018260 expire?

The CMS file lists July 14, 2027 as the certificate expiration date; the certificate took effect July 15, 2025.

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