Lab Testing in Los Angeles, CA

Whatever brought you here - a doctor's order, a new job, peace of mind - you can get it done today at any of 11+ test centers across the Los Angeles 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 Los Angeles since 2008. Los Angeles is fifty cities wearing one name, and there are test centers scattered across most of them — Mid-Wilshire, the Valley, the Westside, South LA, East LA. The trick isn't finding one; it's picking the one that doesn't require crossing the 405 at 5 p.m. Order online, enter your ZIP, and choose by traffic, not by luck.

🔒 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
4036 S Centinela Ave, Los Angeles, CA 90066
Mon-Fri: 8AM-5PM
✓ 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.
Not your spot? See all 11+ test centers near you →
Over 4,500 testing centers nationwide · 48 states, including New York

Testing in Los Angeles - start here

Pick the kind of test you came for. Every option is order-online, walk-in, all-in pricing.
STD Testing in Los Angeles View STD testing → Wellness Testing in Los Angeles View wellness testing →
🔥 Most ordered in Los Angeles
Basic Health Panel: CBC, CMP, UA, Cholesterol
$169
Comprehensive Testing Panel
$329
9 Panel Drug Test
$99

Getting tested in Los Angeles

Centers cluster near the medical corridors — Wilshire and Vermont, the Cedars-Sinai area, Ventura Boulevard through the Valley, and near the county medical campuses on the east side. Metro helps on the Wilshire and Vermont lines; everywhere else, it's LA — you know the drill.

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 Los Angeles 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.
Traffic honestly decides everything for me — how do I pick a center?
Pick by when, not just where. Enter your ZIP, choose a center on the right side of your commute, and go at opening or mid-afternoon when both the roads and the centers are lighter. The visit itself is about five minutes — the freeway is the only real variable.
Lab testing near Los Angeles