#1Conejo Dermatology
Based in Thousand Oaks, CA
Clinical & Reference Laboratories in Ventura County, CA
The top-ranked clinical laboratories serving Ventura County, CA are Conejo Dermatology, Gemini Diagnostics and Huntington Reproductive Center. We list 168 clinical laboratories serving Ventura County, CA. 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 Ventura County, CA. 168 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 Ventura County
#2Gemini Diagnostics
Based in Thousand Oaks, CA#3Huntington Reproductive Center
Based in Lake Sherwood, CA#4Island View Gastroenterology Associates
Based in San Buenaventura (Ventura), CA#5Progenabiome
Based in San Buenaventura (Ventura), CA#6Topa Diagnostics
Based in CA#7Unilab Corporation
Based in San Buenaventura (Ventura), CA#8Agilent Biopharma Cdx Services Laboratory
Serves this area from Carpinteria, CA (20 mi)#9Lan Su Dmd Phd
Serves this area from Westlake Village, CA (23 mi)#10Interscope Pathology Medical Group
Serves this area from Westlake Village, CA (24 mi)
20 more providers serving this area
- Alexanian Medical Laboratories, Agoura Hills, CA (25 mi)
- Earlydiagnostics Inc, Agoura Hills, CA (25 mi)
- Payam Abrishami Md Inc, CA
- Malibu Pathology, Agoura Hills, CA (27 mi)
- Pacgenomics Inc, Agoura Hills, CA (27 mi)
- Esoterix-inc, Calabasas, CA (29 mi)
- Quest Diagnostics, Los Angeles, CA (31 mi)
- Quest Diagnostics, Los Angeles, CA (31 mi)
- Quest Diagnostics, Los Angeles, CA (31 mi)
- Sonic Diagnostic Laboratory Inc, Los Angeles, CA (32 mi)
- Pacific Toxicology Laboratories, Los Angeles, CA (32 mi)
- Transpath Inc, Los Angeles, CA (32 mi)
- Caris Mpi, Inc, Santa Barbara, CA (34 mi)
- Los Angeles Ventura Affiliated, Los Angeles, CA (35 mi)
- Unity Lab Solutions, Inc, Los Angeles, CA (35 mi)
- Doctornow, Los Angeles, CA (35 mi)
- Biocollections Worldwide Inc, Los Angeles, CA (35 mi)
- Western Pathology Inc., Santa Barbara, CA (36 mi)
- Charles River Laboratories, Los Angeles, CA (37 mi)
- Primex Clinical Laboratories, Inc, Los Angeles, CA (38 mi)
Request quotes
Frequently asked questions
How many clinical laboratories serve Ventura County?
We list 168 clinical laboratories serving Ventura County, CA: 7 based there and 161 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 Ventura County?
The top-ranked clinical laboratories serving Ventura County, CA are Conejo Dermatology, Gemini Diagnostics, Huntington Reproductive Center, Island View Gastroenterology Associates and Progenabiome. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Ventura County are verified against official records?
10 of the top 10 match an active official record: Conejo Dermatology (Centers for Medicare & Medicaid Services), Gemini Diagnostics (Centers for Medicare & Medicaid Services), Huntington Reproductive Center (Centers for Medicare & Medicaid Services), Island View Gastroenterology Associates (Centers for Medicare & Medicaid Services) and Progenabiome (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 Ventura County
Communities served
Port Hueneme, Fillmore, Oak Park, Ojai, El Rio, Mira Monte, Oak View, Meiners Oaks, Santa Rosa Valley, Casa Conejo, Channel Islands Beach, Piru, Bell Canyon, Lake Sherwood, Somis, Santa Susana, Saticoy, Nyeland Acres, North Ventura Avenue