Clinical & Reference Laboratories in Norwalk, CA

The top-ranked clinical laboratories serving Norwalk, CA are Bioanalysis Diagnostic Laboratories, Bio Corp Clinical Lab and Caris Mpi, Inc. We list 293 clinical laboratories serving Norwalk, 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 Norwalk, CA (Los Angeles County). 293 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 Norwalk

Ranked by our published methodology. Sponsored providers are shown separately.
#ProviderVerified recordsBased inPhone
1Bioanalysis Diagnostic LaboratoriesCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2065162
Artesia, CA (3 mi)(562) 924-2299
2Bio Corp Clinical LabCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D0965845
Santa Fe Springs, CA (3 mi)(562) 946-5555
3Caris Mpi, IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2269564
Buena Park, CA (7 mi)(214) 883-5528
4Altasciences Los AngelesCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D1064850
Cypress, CA (7 mi)(714) 252-0700
5Biogene DiagnosticsCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2284039
Los Alamitos, CA (7 mi)(562) 200-5054
6New World Clinical Laboratory, IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2145018
Los Alamitos, CA (7 mi)(562) 200-5054
7Consolidated Medical Bio-analysis IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D0553364
Cypress, CA (7 mi)(714) 657-7369
8Arbelos1 LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2309204
Montebello, CA (8 mi)(626) 463-8162
9Lifequest Diagnostic, IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D2274138
Anaheim, CA (9 mi)(657) 777-4046
10Pathology Associates LaboratoryCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#05D0951370
Anaheim, CA (9 mi)(714) 818-0600
20 more providers serving this area

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Frequently asked questions

How many clinical laboratories serve Norwalk?

We list 293 clinical laboratories serving Norwalk, CA: 0 based there and 293 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 Norwalk?

The top-ranked clinical laboratories serving Norwalk, CA are Bioanalysis Diagnostic Laboratories, Bio Corp Clinical Lab, Caris Mpi, Inc, Altasciences Los Angeles and Biogene Diagnostics. The full ranked list, with the official records each provider matched, is on this page.

Which clinical laboratories serving Norwalk are verified against official records?

10 of the top 10 match an active official record: Bioanalysis Diagnostic Laboratories (Centers for Medicare & Medicaid Services), Bio Corp Clinical Lab (Centers for Medicare & Medicaid Services), Caris Mpi, Inc (Centers for Medicare & Medicaid Services), Altasciences Los Angeles (Centers for Medicare & Medicaid Services) and Biogene Diagnostics (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 .

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