Lab Testing in Modesto, CA

Whatever brought you here - a doctor's order, a new job, peace of mind - you can get it done today at any of 5+ test centers across the Modesto area. STD panels, wellness bloodwork, drug screens: order online, we send the lab order to the center in 2-3 minutes, and you just walk in and sign in. No appointment, no insurance needed. Results usually in 1-2 business days. Serving Modesto since 2008. Modesto has four Quest test centers, from downtown on 6th Street to McHenry Avenue, Orangeburg, and Pelandale on the growing north side. Central Valley healthcare can mean long waits for a simple lab order; this is the shortcut. Order online, walk into the center nearest you, and your results post in your secure account.

🔒 100% confidential ⚡ Same-day testing - no appointment needed 💵 All-in pricing - no fees at checkout, ever 📄 Results usually in 1-2 business days
Not sure which test you need? Talk to a Care Advisor - no pressure, just answers. Since 2008.
(866) 873-0879
Have your ZIP code ready - we'll find your nearest test center and the right test while you're on the phone.
Quest Diagnostics Nearest to you
1008 6th St Suite C, Modesto, CA 95354
Mon-Fri: 6:30AM-3PM
✓ Test at this center Directions
Map showing Quest Diagnostics
Test centers don't accept payment - you pay securely here; the center just does the draw.
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Testing in Modesto - start here

Pick the kind of test you came for. Every option is order-online, walk-in, all-in pricing.
STD Testing in Modesto View STD testing → Wellness Testing in Modesto View wellness testing → DNA Testing in Modesto View dna testing →
🔥 Most ordered in Modesto
Testosterone, Free & Total
$99
Comprehensive Testing Panel
$329
9 Panel Drug Test
$99

Getting tested in Modesto

The McHenry Avenue office is the most central, Orangeburg serves the east side near the hospitals, Pelandale covers Salida and the north-side neighborhoods off Highway 99, and the 6th Street center handles downtown. Free parking at all four; mornings before work are the busiest hour.

What happens after you order

We send your lab order electronically to the test center in 2-3 minutes. Nothing to print, nothing to bring. Just walk in and sign in.

1Order online

Your lab order form and test code appear in your secure online account with your test center's address.

2We send it ahead

Your lab requisition goes to the test center electronically - usually before you've left the house.

3Walk in & get tested

Sign in at the front desk. Tests usually take 5 minutes or less. Results usually in 1-2 business days.

Questions people in Modesto ask us

Every one of these gets asked on the phone daily. No judgment, just answers.

Do I need an appointment?
No. Order online first so your lab order is in the system, then walk in during the test center's business hours and sign in. The visit itself usually takes about five minutes.
How fast will I get results?
Most tests post to your secure online account in usually 1-2 business days. Rapid drug screens are read at the collection site the same day. Specialty and DNA tests take longer - each product page tells you before you buy.
What does "all-in" pricing mean?
The price you see is the price you pay. No draw fees, no physician fees, no surprise bills. Competitors advertise one number and add fees at checkout - we don't.
Is this confidential?
Completely. You order online, nobody calls your home, nothing arrives in the mail, and results go only to your password-protected account. You decide who sees them - including whether your own doctor does.
How do I know which test I need?
Start with what's going on: a symptom, a request from a doctor or employer, or just wanting answers. Each category page walks you through it - and if you'd rather talk it through, our Care Advisors do this all day at (866) 873-0879.
Can people from Turlock or Ceres use Modesto centers?
Yes, any of the four, and most of Stanislaus County does. Your lab order is electronic, so it works at whichever center you walk into. Turlock and Ceres are each about fifteen minutes from the McHenry or Pelandale locations.
Lab testing near Modesto