Clinical & Reference Laboratories in Suffolk County, NY

The top-ranked clinical laboratories serving Suffolk County, NY are Applied Dna Clinical Labs, LLC, Cytogenx Corp and Fast Lab Corp. We list 80 clinical laboratories serving Suffolk County, NY. 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 Suffolk County, NY. 80 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 Suffolk County

Ranked by our published methodology. Sponsored providers are shown separately.
#ProviderVerified recordsBased inPhone
1Applied Dna Clinical Labs, LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2187353
Stony Brook University, NY(631) 240-8872
2Cytogenx CorpCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D0981518
Stony Brook, NY(631) 751-0212
3Fast Lab CorpCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2244388
Holtsville, NY(631) 975-7040
4Hampton Pathology, PCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2338149
Southampton, NY(516) 457-1806
5Long Island Pathology Laboratory, IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2003046
East Setauket, NY(631) 675-1777
6Mcclain Laboratories LLCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D1020119
Smithtown, NY(631) 361-4000
7Medpath Diagnostics, IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2326528
Holtsville, NY(631) 599-3719
8North Shore Hematology-oncology Associates, PCCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2141642
Terryville, NY(631) 663-4861
9Prime Pathology LaboratoryCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D2297757
Southampton, NY(516) 457-1806
10Quest DiagnosticsCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#33D0662981
Melville, NY(516) 677-3871
20 more providers serving this area

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Frequently asked questions

How many clinical laboratories serve Suffolk County?

We list 80 clinical laboratories serving Suffolk County, NY: 15 based there and 65 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 Suffolk County?

The top-ranked clinical laboratories serving Suffolk County, NY are Applied Dna Clinical Labs, LLC, Cytogenx Corp, Fast Lab Corp, Hampton Pathology, PC and Long Island Pathology Laboratory, Inc. The full ranked list, with the official records each provider matched, is on this page.

Which clinical laboratories serving Suffolk County are verified against official records?

10 of the top 10 match an active official record: Applied Dna Clinical Labs, LLC (Centers for Medicare & Medicaid Services), Cytogenx Corp (Centers for Medicare & Medicaid Services), Fast Lab Corp (Centers for Medicare & Medicaid Services), Hampton Pathology, PC (Centers for Medicare & Medicaid Services) and Long Island Pathology Laboratory, Inc (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 .

Cities in Suffolk County

Communities served

Medford, Copiague, East Patchogue, Selden, Hauppauge, East Northport, Huntington, North Bay Shore, Melville, Ronkonkoma, Holtsville, North Amityville, Lake Ronkonkoma, Islip, North Babylon, Kings Park, Sayville, Mastic, Hampton Bays, Riverhead, Farmingville, Manorville, Mastic Beach, East Islip, Greenlawn, Rocky Point, St. James, Stony Brook, Ridge, Nesconset, Wyandanch, Patchogue, Babylon, North Lindenhurst, North Bellport, Miller Place, Mount Sinai, Terryville, Elwood, Lake Grove, East Setauket, Middle Island, Stony Brook University, Bohemia, Amityville, Fort Salonga, South Huntington, Bayport, Port Jefferson, Springs, Center Moriches, Port Jefferson Station, Wading River, Baywood, Oakdale, Sound Beach, Northport, East Shoreham, North Patchogue, East Farmingdale

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