Clinical & Reference Laboratories in Philadelphia, PA

We list 39 clinical laboratories serving Philadelphia, PA: 5 based there and 34 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 Philadelphia, PA are Drexel Medicine Diagnostics, Menarini Silicon Biosystems, Penn Clinical Cytogenomics Lab, Penn Cutaneous Pathology Services and Public Health Lab City Of Philadelphia. 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: Drexel Medicine Diagnostics (Centers for Medicare & Medicaid Services), Menarini Silicon Biosystems (Centers for Medicare & Medicaid Services), Penn Clinical Cytogenomics Lab (Centers for Medicare & Medicaid Services), Penn Cutaneous Pathology Services (Centers for Medicare & Medicaid Services) and Public Health Lab City Of Philadelphia (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.