Clinical & Reference Laboratories in San Mateo County, CA

The top-ranked clinical laboratories serving San Mateo County, CA are Adela, Inc, Bay Area Pl Services and Billiontoone Inc. We list 70 clinical laboratories serving San Mateo County, 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 San Mateo County, CA. 70 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 San Mateo County

20 more providers serving this area

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Frequently asked questions

How many clinical laboratories serve San Mateo County?

We list 70 clinical laboratories serving San Mateo County, CA: 28 based there and 42 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 San Mateo County?

The top-ranked clinical laboratories serving San Mateo County, CA are Adela, Inc, Bay Area Pl Services, Billiontoone Inc, Caredx, Inc and Color Diagnostics LLC. The full ranked list, with the official records each provider matched, is on this page.

Which clinical laboratories serving San Mateo County are verified against official records?

10 of the top 10 match an active official record: Adela, Inc (Centers for Medicare & Medicaid Services), Bay Area Pl Services (Centers for Medicare & Medicaid Services), Billiontoone Inc (Centers for Medicare & Medicaid Services), Caredx, Inc (Centers for Medicare & Medicaid Services) and Color Diagnostics LLC (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 .

Cities in San Mateo County

Communities served

Millbrae, North Fair Oaks, Half Moon Bay, Hillsborough, Atherton, El Granada, Woodside, Brisbane, Broadmoor, Emerald Lake Hills, Portola Valley, West Menlo Park, Moss Beach, Montara, Highlands, Baywood Park, Ladera, Colma, La Honda, Pescadero, Loma Mar

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