CLIA lab

CLIA 05D0644027: Unilab Corp DBA Quest Diagnostics

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

CLIA number 05D0644027 belongs to Unilab Corp DBA Quest Diagnostics in Merced, CA.

Certificate of Compliance, effective November 20, 2025, expires November 19, 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 of Compliance
Certificate effective
November 20, 2025
Certificate expiration
November 19, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
September 1, 1992
Facility type
Independent
Ownership (control type)
Proprietary
Lab classification
CLIA laboratory
Directly affiliated labs
3

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

Lab and contact

CLIA number
05D0644027
Lab name
Unilab Corp DBA Quest Diagnostics
Address
857 W Childs Ave, Merced, CA 95341
Phone
(209) 385-5632

Annual test volume the lab reported

Other nonwaived tests
27,779

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

Affiliated CLIA numbers

Other labs in Merced, CA

Related

Questions

What is the CLIA number for Unilab Corp DBA Quest Diagnostics in Merced?

05D0644027, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Unilab Corp DBA Quest Diagnostics hold?

A Certificate of Compliance, according to the CMS file.

When does CLIA 05D0644027 expire?

The CMS file lists November 19, 2027 as the certificate expiration date; the certificate took effect November 20, 2025.

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