#1Elim Clinical Laboratory
Serves this area from Hayward, CA (7 mi)
Clinical & Reference Laboratories in Castro Valley, CA
The top-ranked clinical laboratories serving Castro Valley, CA are Elim Clinical Laboratory, Fellow Health Inc. and Diacarta, Inc. We list 81 clinical laboratories serving Castro Valley, 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 Castro Valley, CA (Alameda County). 81 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 Castro Valley
#2Fellow Health Inc.
Serves this area from San Leandro, CA (7 mi)#3Diacarta, Inc
Serves this area from Hayward, CA (7 mi)#4Predicine Inc
Serves this area from Hayward, CA (7 mi)#5National Labs Inc
Serves this area from Hayward, CA (7 mi)#6Laboratory Corporation Of America
Serves this area from San Leandro, CA (7 mi)#7Billiontoone Laboratory
Serves this area from Union City, CA (7 mi)#8Strategic Concept Lab
Serves this area from Pleasanton, CA (11 mi)#9Apostle Diagnostics
Serves this area from Pleasanton, CA (12 mi)#10Norcal Pathology Laboratory
Serves this area from Fremont, CA (12 mi)
20 more providers serving this area
- Precision Pathology Medical Group Inc, CA
- Juno Bio, Oakland, CA (13 mi)
- Gl CA Clia LLC, Fremont, CA (14 mi)
- Quest Diagnostics, Berkeley, CA (15 mi)
- Pathology Services Inc DBA Labgenomics, Berkeley, CA (15 mi)
- Verinata Health DBA Illumina, Foster City, CA (15 mi)
- Hrc Fertlity Management, LLC, Foster City, CA (15 mi)
- Adela, Inc, Foster City, CA (15 mi)
- Laboratory Corporation Of America, Walnut Creek, CA (15 mi)
- Golden State Dermatology Associates, Inc, Walnut Creek, CA (15 mi)
- Karius, Inc, Redwood City, CA (16 mi)
- Myome, Inc, Menlo Park, CA (16 mi)
- Guardant Health - Saginaw, Redwood City, CA (17 mi)
- Guardant Health Inc, Redwood City, CA (17 mi)
- Octave Bioscience, Inc., Menlo Park, CA (17 mi)
- Genomic Health Inc, Redwood City, CA (17 mi)
- Sagemedic Corp, Redwood City, CA (17 mi)
- Billiontoone Inc, Menlo Park, CA (17 mi)
- Machaon Diagnostics Inc, Berkeley, CA (17 mi)
- Natera, Inc., San Carlos, CA (17 mi)
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Frequently asked questions
How many clinical laboratories serve Castro Valley?
We list 81 clinical laboratories serving Castro Valley, CA: 0 based there and 81 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 Castro Valley?
The top-ranked clinical laboratories serving Castro Valley, CA are Elim Clinical Laboratory, Fellow Health Inc., Diacarta, Inc, Predicine Inc and National Labs Inc. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Castro Valley are verified against official records?
10 of the top 10 match an active official record: Elim Clinical Laboratory (Centers for Medicare & Medicaid Services), Fellow Health Inc. (Centers for Medicare & Medicaid Services), Diacarta, Inc (Centers for Medicare & Medicaid Services), Predicine Inc (Centers for Medicare & Medicaid Services) and National Labs 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 .