Lab Testing in Saint Louis, MO

Whatever brought you here - a doctor's order, a new job, peace of mind - you can get it done today at any of 10+ test centers across the Saint Louis 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 Saint Louis since 2008. St. Louis has six Quest test centers threading the metro, the New Ballas medical corridor in Creve Coeur, Watson Road, Kennerly, Southfork, so lab testing is a fifteen-minute errand from most of the county. Order online, walk in, and your results post to your own secure account, usually in 1 to 2 business days.

🔒 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
701 S New Ballas Rd, Saint Louis, MO 63141
Mon-Fri: 7AM-4:30PM
✓ 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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Over 4,500 testing centers nationwide · 48 states, including New York

Testing in Saint Louis - start here

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

Getting tested in Saint Louis

The New Ballas corridor near Mercy holds two centers, the anchor for west county. South county uses Kennerly or Southfork, and Watson Road catches the city's southwest neighborhoods. Free parking at every location.

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 Saint Louis 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.
Do St. Louis test centers serve both sides of the river?
The Missouri side has all six centers, and Metro East residents cross for the New Ballas or Watson locations routinely. Your electronic order works at whichever you walk into, so pick by bridge traffic, not by what you selected first.
Lab testing near Saint Louis