#1Redwood Toxicology Laboratory, Inc
Based in CA
Clinical & Reference Laboratories in Sonoma County, CA
The top-ranked clinical laboratories serving Sonoma County, CA are Redwood Toxicology Laboratory, Inc, Neurovations and Medusa Pathology Inc. We list 10 clinical laboratories serving Sonoma County, CA. 10 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 Sonoma County, CA. 10 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 Sonoma County
#2Neurovations
Serves this area from Napa, CA (37 mi)#3Medusa Pathology Inc
Serves this area from Napa, CA (38 mi)#4Planned Parenthood Shasta Pacific
Serves this area from San Rafael, CA (43 mi)#5Gcc Laboratory
Serves this area from Fairfield, CA (47 mi)#6Contra Costa Pathology Associates
Serves this area from Pleasant Hill, CA (60 mi)#7Epic Care
Serves this area from Pleasant Hill, CA (60 mi)#8Laboratory Corporation Of America
Serves this area from Walnut Creek, CA (63 mi)#9Golden State Dermatology Associates, Inc
Serves this area from Walnut Creek, CA (63 mi)#10Precision Pathology Medical Group Inc
Serves this area from CA
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Frequently asked questions
How many clinical laboratories serve Sonoma County?
We list 10 clinical laboratories serving Sonoma County, CA: 1 based there and 9 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 Sonoma County?
The top-ranked clinical laboratories serving Sonoma County, CA are Redwood Toxicology Laboratory, Inc, Neurovations, Medusa Pathology Inc, Planned Parenthood Shasta Pacific and Gcc Laboratory. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Sonoma County are verified against official records?
10 of the top 10 match an active official record: Redwood Toxicology Laboratory, Inc (Centers for Medicare & Medicaid Services), Neurovations (Centers for Medicare & Medicaid Services), Medusa Pathology Inc (Centers for Medicare & Medicaid Services), Planned Parenthood Shasta Pacific (Centers for Medicare & Medicaid Services) and Gcc Laboratory (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 Sonoma County
Communities served
Healdsburg, Sonoma, Cloverdale, Larkfield-Wikiup, Cotati, Sebastopol, Boyes Hot Springs, Guerneville, Fetters Hot Springs-Agua Caliente, El Verano, Forestville, Sonoma State University, Penngrove, Graton, Temelec, Eldridge, Sea Ranch, Occidental, Monte Rio, Bodega Bay, Geyserville, Kenwood, Glen Ellen, Fulton, Bloomfield, Cazadero, Bodega, Timber Cove, Valley Ford, Jenner, Salmon Creek, Sereno del Mar, Carmet