Clinical & Reference Laboratories in Washington Parish, LA

We list 4 clinical laboratories serving Washington Parish, LA: 0 based there and 4 serving it from nearby. 4 of the top 4 match an active federal or state record, checked on 2026-11-04.

The top-ranked clinical laboratories serving Washington Parish, LA are Delta Pathology Group LLC St Tammany, Cornerstone Diagnostics, LLC, Delta Pathology Group LLC, Asc and Delta Pathology Group, LLC - Covington. The full ranked list, with the official records each provider matched, is on this page.

4 of the top 4 match an active official record: Delta Pathology Group LLC St Tammany (Centers for Medicare & Medicaid Services), Cornerstone Diagnostics, LLC (Centers for Medicare & Medicaid Services), Delta Pathology Group LLC, Asc (Centers for Medicare & Medicaid Services) and Delta Pathology Group, LLC - Covington (Centers for Medicare & Medicaid Services). 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.