Clinical & Reference Laboratories in Southeastern Connecticut Planning Region, CT

We list 54 clinical laboratories serving Southeastern Connecticut Planning Region, CT: 7 based there and 47 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 Southeastern Connecticut Planning Region, CT are East Side Clinical Laboratory, Inc, Health Outlook Corporation, Pfizer Pharmacogenomics Lab, Quest Diagnostics and Quest Diagnostics 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: East Side Clinical Laboratory, Inc (Centers for Medicare & Medicaid Services), Health Outlook Corporation (Centers for Medicare & Medicaid Services), Pfizer Pharmacogenomics Lab (Centers for Medicare & Medicaid Services), Quest Diagnostics (Centers for Medicare & Medicaid Services) and Quest Diagnostics 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.