Clinical & Reference Laboratories in El Cajon, CA

We list 224 clinical laboratories serving El Cajon, CA: 2 based there and 222 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 El Cajon, CA are Cordell Labs, LLC DBA Specialty Laboratories, San Diego Family Dermatology, Sharp Rees Stealy Clinics Laboratory-santee, Sharp Rees-stealy Clinics and Upperline Healthcare California, PC. 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: Cordell Labs, LLC DBA Specialty Laboratories (Centers for Medicare & Medicaid Services), San Diego Family Dermatology (Centers for Medicare & Medicaid Services), Sharp Rees Stealy Clinics Laboratory-santee (Centers for Medicare & Medicaid Services), Sharp Rees-stealy Clinics (Centers for Medicare & Medicaid Services) and Upperline Healthcare California, PC (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.