Clinical & Reference Laboratories in Mercer Island, WA

The top-ranked clinical laboratories serving Mercer Island, WA are Incyte Pathology Herreid Bellevue Branch, Incyte Pathology - Overlake Branch and Phenopath Laboratories. We list 71 clinical laboratories serving Mercer Island, WA. 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 Mercer Island, WA (King County). 71 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 Mercer Island

Ranked by our published methodology. Sponsored providers are shown separately.
#ProviderVerified recordsBased inPhone
1Incyte Pathology Herreid Bellevue BranchCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D2279123
Bellevue, WA (4 mi)(509) 508-4519
2Incyte Pathology - Overlake BranchCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D0864909
Bellevue, WA (4 mi)(509) 508-4519
3Phenopath LaboratoriesCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D0936414
Seattle, WA (5 mi)(206) 374-9000
4Quest DiagnosticsCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D0633094
Seattle, WA (5 mi)(206) 623-8100
5Cellnetix PathologyCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D2044821
Seattle, WA (5 mi)(206) 576-6050
6Dynacare Northwest IncCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D2053987
Seattle, WA (5 mi)(206) 861-7000
7Laboratory Corporation Of AmericaCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D0630157
Seattle, WA (5 mi)(206) 861-7160
8Incyte Pathology - Tukwila BranchCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D2335140
Tukwila, WA (5 mi)(509) 508-4519
9Laboratory Corporation Of AmericaCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D0904174
Tukwila, WA (5 mi)(503) 341-9352
10Cellnetix PathologyCLIA-certified laboratory (certificate of compliance or accreditation, CMS)#50D2193533
Seattle, WA (5 mi)(206) 576-6160
20 more providers serving this area

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Frequently asked questions

How many clinical laboratories serve Mercer Island?

We list 71 clinical laboratories serving Mercer Island, WA: 0 based there and 71 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 Mercer Island?

The top-ranked clinical laboratories serving Mercer Island, WA are Incyte Pathology Herreid Bellevue Branch, Incyte Pathology - Overlake Branch, Phenopath Laboratories, Quest Diagnostics and Cellnetix Pathology. The full ranked list, with the official records each provider matched, is on this page.

Which clinical laboratories serving Mercer Island are verified against official records?

10 of the top 10 match an active official record: Incyte Pathology Herreid Bellevue Branch (Centers for Medicare & Medicaid Services), Incyte Pathology - Overlake Branch (Centers for Medicare & Medicaid Services), Phenopath Laboratories (Centers for Medicare & Medicaid Services), Quest Diagnostics (Centers for Medicare & Medicaid Services) and Cellnetix Pathology (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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