LabInformationLab tests, explained

Lab testing in California

California spans 1,053 cities in Pacific, where residents can request lab tests directly and have specimens collected at a local site.

1,053Cities
665Tests
CAState code

How direct-access lab testing works in California

California spans 1,053 cities across Pacific. Coastal metros, inland towns, and rural counties with very different access to testing, so residents often compare options before booking. Direct-access testing lets you order a test yourself — no doctor's referral needed — and have your specimen collected at a certified site.

Because the region is uneven, planning your visit in advance tends to make the process smoother. Once your sample is collected, results are released through a secure portal, usually within a few days.

Common questions

Do I need a doctor's referral to get tested in California?

For most of the tests listed here, no referral is required — you can order directly and have your sample collected at a certified site. Some tests may still be best discussed with a clinician.

Are my results confidential in California?

Yes. Orders are handled confidentially and results are released through a secure portal that only you can access.

Where can I have my sample collected?

Collection is arranged at a certified site near you. Choose a city above to see the tests available and local options.

Test by city in California

All 1,053 cities in California

Lab tests in California

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