#1Doctornow
Serves this area from Los Angeles, CA (12 mi)
Clinical & Reference Laboratories in Santa Clarita, CA
The top-ranked clinical laboratories serving Santa Clarita, CA are Doctornow, Sonic Diagnostic Laboratory Inc and Charles River Laboratories. We list 294 clinical laboratories serving Santa Clarita, CA. 30 of the providers shown match an active record from Centers for Medicare & Medicaid Services, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical & Reference Laboratories serving Santa Clarita, CA (Los Angeles County). 294 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical laboratories for Santa Clarita
#2Sonic Diagnostic Laboratory Inc
Serves this area from Los Angeles, CA (13 mi)#3Charles River Laboratories
Serves this area from Los Angeles, CA (13 mi)#4Pacific Toxicology Laboratories
Serves this area from Los Angeles, CA (13 mi)#5Biocollections Worldwide Inc
Serves this area from Los Angeles, CA (14 mi)#6Transpath Inc
Serves this area from Los Angeles, CA (14 mi)#7Diamed Laboratory Services Inc
Serves this area from Los Angeles, CA (14 mi)#8Primex Clinical Laboratories, Inc
Serves this area from Los Angeles, CA (14 mi)#9Research & Development Institute
Serves this area from Los Angeles, CA (14 mi)#10Roca Laboratory Inc
Serves this area from Los Angeles, CA (15 mi)
20 more providers serving this area
- Quest Diagnostics, Los Angeles, CA (15 mi)
- Quest Diagnostics, Los Angeles, CA (15 mi)
- Quest Diagnostics, Los Angeles, CA (15 mi)
- Pasteur Inc DBA Sinai Labs, Los Angeles, CA (16 mi)
- L&g Laboratory Inc, Los Angeles, CA (16 mi)
- Premier Pathology, Los Angeles, CA (16 mi)
- Prime Med Laboratory Inc, Los Angeles, CA (16 mi)
- Core Analytics Laboratory LLC, Los Angeles, CA (17 mi)
- Rapid Pax Lasb Inc, Los Angeles, CA (17 mi)
- Alpha Clinical Laboratory, Inc, Burbank, CA (17 mi)
- Universal Labs Inc, Los Angeles, CA (17 mi)
- Los Angeles Ventura Affiliated, Los Angeles, CA (18 mi)
- Unity Lab Solutions, Inc, Los Angeles, CA (18 mi)
- Medical Electronic Systems, Los Angeles, CA (18 mi)
- Allstate Lab, Los Angeles, CA (18 mi)
- Care Bio Clinical Laboratory, Los Angeles, CA (18 mi)
- Skin And Beauty Center Lab, Burbank, CA (18 mi)
- University Dermatopathology, Burbank, CA (18 mi)
- Hrc Fertility - Encino, Los Angeles, CA (18 mi)
- US Health Laboratories, Los Angeles, CA (18 mi)
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Frequently asked questions
How many clinical laboratories serve Santa Clarita?
We list 294 clinical laboratories serving Santa Clarita, CA: 0 based there and 294 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical laboratories serve Santa Clarita?
The top-ranked clinical laboratories serving Santa Clarita, CA are Doctornow, Sonic Diagnostic Laboratory Inc, Charles River Laboratories, Pacific Toxicology Laboratories and Biocollections Worldwide Inc. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Santa Clarita are verified against official records?
10 of the top 10 match an active official record: Doctornow (Centers for Medicare & Medicaid Services), Sonic Diagnostic Laboratory Inc (Centers for Medicare & Medicaid Services), Charles River Laboratories (Centers for Medicare & Medicaid Services), Pacific Toxicology Laboratories (Centers for Medicare & Medicaid Services) and Biocollections Worldwide Inc (Centers for Medicare & Medicaid Services), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What does CLIA certification mean?
CLIA certificates are issued under federal law for laboratories testing human specimens. A certificate of compliance or accreditation covers moderate and high complexity testing; a certificate of waiver covers only simple waived tests.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .