Clinical & Reference Laboratories in Lake Forest, CA

We list 391 clinical laboratories serving Lake Forest, CA: 6 based there and 385 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

The top-ranked clinical laboratories serving Lake Forest, CA are Genomic Testing Cooperative, Inspire Diagnostics, LLC, Luciddx Labs, Mammoth Path Solution, LLC and Mosaic Laboratories, LLC. The full ranked list, with the official records each provider matched, is on this page.

10 of the top 10 match an active official record: Genomic Testing Cooperative (Centers for Medicare & Medicaid Services), Inspire Diagnostics, LLC (Centers for Medicare & Medicaid Services), Luciddx Labs (Centers for Medicare & Medicaid Services), Mammoth Path Solution, LLC (Centers for Medicare & Medicaid Services) and Mosaic Laboratories, LLC (Centers for Medicare & Medicaid Services), and 5 more on this page. Each badge links to the official record it matched.

By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.

"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.

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.