CLIA lab
CLIA 05D0643397: Unilab Corporation DBA Quest Diagnostics
Orange, CA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 05D0643397 belongs to Unilab Corporation DBA Quest Diagnostics in Orange, CA.
Certificate of Accreditation, effective December 26, 2025, expires December 25, 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 Accreditation
- Certificate effective
- December 26, 2025
- Certificate expiration
- December 25, 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
- Accrediting organizations
- College of American Pathologists (CAP)
- Directly affiliated labs
- 1
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Lab and contact
- CLIA number
- 05D0643397
- Lab name
- Unilab Corporation DBA Quest Diagnostics
- Address
- 431 S Batavia Ste 102, Orange, CA 92868
- Phone
- (714) 997-9826
- Fax
- (714) 997-9845
Annual test volume the lab reported
- Waived tests
- 1,132
- Tests under accreditation
- 509,266
- Total
- 510,398
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
Affiliated CLIA numbers
Other labs in Orange, CA
- Acharya & Sharma Medical CorporationCertificate of Waiver, Physician office05D0953923
- Advanced Joint and Spine Medical Center IncCertificate of Waiver, Physician office05D2193104
- Alex Zand MD A Professional CorpCertificate of Waiver, Physician office05D1030493
- Allen E Austin OD IncCertificate of Waiver, Physician office05D2159275
- Altamed Medical GroupCertificate for Provider-Performed Microscopy Procedures, Federally qualified health center05D2152735
- AmeripharmaCertificate of Waiver, Pharmacy05D2136540
- Amhs Exodus Crisis Residential Be Well OrangeCertificate of Waiver, Other05D2225418
- Ana Sanchez, MDCertificate of Waiver, Other practitioner05D0856498
- Angela Allevato MD IncCertificate of Waiver, Physician office05D1036775
- Angela Herrmann MD IncCertificate of Waiver, Physician office05D1005795
Related
Questions
What is the CLIA number for Unilab Corporation DBA Quest Diagnostics in Orange?
05D0643397, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Unilab Corporation DBA Quest Diagnostics hold?
A Certificate of Accreditation, according to the CMS file.
When does CLIA 05D0643397 expire?
The CMS file lists December 25, 2027 as the certificate expiration date; the certificate took effect December 26, 2025.