CLIA lab
CLIA 05D0939429: Quest Diagnostics
West Hills, CA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 05D0939429 belongs to Quest Diagnostics in West Hills, CA.
Certificate of Accreditation, effective September 8, 2026, expires September 7, 2028.
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
Run it in Rivvi
Map your lab's test names to LOINC codes
Open in RivviFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Certificate
- Certificate type
- Certificate of Accreditation
- Certificate effective
- September 8, 2026
- Certificate expiration
- September 7, 2028
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- January 26, 1998
- Facility type
- Independent
- Ownership (control type)
- Proprietary
- Lab classification
- CLIA laboratory
- Accrediting organizations
- College of American Pathologists (CAP)
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Lab and contact
- CLIA number
- 05D0939429
- Lab name
- Quest Diagnostics
- Address
- 8403 Fallbrook Ave, West Hills, CA 91304
- Phone
- (805) 404-1352
- Fax
- (610) 271-6715
Annual test volume the lab reported
- Tests under accreditation
- 425,000
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
Other labs in West Hills, CA
- 4 Seasons Recovery IopCertificate of Waiver, Other05D2314798
- Accentcare UCLA Health LLCCertificate of Waiver, Home health agency05D2163754
- Advanced Pain Medical GroupCertificate of Waiver, Physician office05D1073273
- Advanced Pain Surgical CenterCertificate of Waiver, Ambulatory surgery center05D1075135
- Agoura-West Valley PediatricCertificate of Waiver, Physician office05D0557570
- Ann Shahwan MDCertificate of Waiver, Physician office05D2090904
- Blair S Kranson MDCertificate of Compliance, Physician office05D0857715
- Eugene Dula MD IncCertificate for Provider-Performed Microscopy Procedures, Physician office05D2326302
- Exer Medical CorporationCertificate of Compliance, Other05D2178989
- Expert DermatologyCertificate of Compliance, Physician office05D2161972
Related
Questions
What is the CLIA number for Quest Diagnostics in West Hills?
05D0939429, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Quest Diagnostics hold?
A Certificate of Accreditation, according to the CMS file.
When does CLIA 05D0939429 expire?
The CMS file lists September 7, 2028 as the certificate expiration date; the certificate took effect September 8, 2026.