Clinical & Reference Laboratories in Jefferson County, WA

We list 7 clinical laboratories serving Jefferson County, WA: 1 based there and 6 serving it from nearby. 7 of the top 7 match an active federal or state record, checked on 2026-11-04.

The top-ranked clinical laboratories serving Jefferson County, WA are Jefferson Healthcare, Incyte Pathology - Olympic Medical Center Branch, Olympic Medical Laboratory - Sequim, Cellnetix Pathology and Laboratory Services Cooperative. The full ranked list, with the official records each provider matched, is on this page.

7 of the top 7 match an active official record: Jefferson Healthcare (Centers for Medicare & Medicaid Services), Incyte Pathology - Olympic Medical Center Branch (Centers for Medicare & Medicaid Services), Olympic Medical Laboratory - Sequim (Centers for Medicare & Medicaid Services), Cellnetix Pathology (Centers for Medicare & Medicaid Services) and Laboratory Services Cooperative (Centers for Medicare & Medicaid Services), and 2 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.