Clinical & Reference Laboratories in Naugatuck, CT

The top-ranked clinical laboratories serving Naugatuck, CT are Quest Diagnostics LLC, Saint Mary's Hospital Oncology Center and Smilow - Waterbury. We list 74 clinical laboratories serving Naugatuck, CT. 30 of the providers shown match an active record from Centers for Medicare & Medicaid Services, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.

Clinical & Reference Laboratories serving Naugatuck, CT (Naugatuck Valley Planning Region). 74 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked clinical laboratories for Naugatuck

Ranked by our published methodology. Sponsored providers are shown separately.
#ProviderVerified recordsBased inPhone
1Quest Diagnostics LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0097260
Prospect, CT (4 mi)(475) 689-2389
2Saint Mary's Hospital Oncology CenterCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0899809
Waterbury, CT (4 mi)(203) 709-6560
3Smilow - WaterburyCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0664949
Waterbury, CT (4 mi)(203) 755-6311
4Sunrise Medical LaboratoriesCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D2199977
Waterbury, CT (7 mi)(203) 527-7390
5Quest Diagnostics LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D1068226
Cheshire, CT (8 mi)(203) 439-4110
6Quest DiagnosticsCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D2107882
Southbury, CT (9 mi)(203) 405-4118
7Northeast Bioanalytical Laboratories LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D2306676
Hamden, CT (11 mi)(203) 361-3768
8Smilow - DerbyCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0095888
Derby, CT (11 mi)(203) 734-1664
9Quest Diagnostics LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0098549
Hamden, CT (11 mi)(203) 497-3157
10Quest Diagnostics LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#07D0093086
Derby, CT (11 mi)(475) 777-3484
20 more providers serving this area

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Frequently asked questions

How many clinical laboratories serve Naugatuck?

We list 74 clinical laboratories serving Naugatuck, CT: 0 based there and 74 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which clinical laboratories serve Naugatuck?

The top-ranked clinical laboratories serving Naugatuck, CT are Quest Diagnostics LLC, Saint Mary's Hospital Oncology Center, Smilow - Waterbury, Sunrise Medical Laboratories and Quest Diagnostics LLC. The full ranked list, with the official records each provider matched, is on this page.

Which clinical laboratories serving Naugatuck are verified against official records?

10 of the top 10 match an active official record: Quest Diagnostics LLC (Centers for Medicare & Medicaid Services), Saint Mary's Hospital Oncology Center (Centers for Medicare & Medicaid Services), Smilow - Waterbury (Centers for Medicare & Medicaid Services), Sunrise Medical Laboratories (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.

How are these companies ranked?

By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.

What does "Verified" mean on this page?

"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.

What does CLIA certification mean?

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.

"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .

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