Lab Testing in San Antonio, TX

Whatever brought you here - a doctor's order, a new job, peace of mind - you can get it done today at any of 23+ test centers across the San Antonio 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 San Antonio since 2008. San Antonio does healthcare at scale — the Medical Center district alone handles millions of visits a year — but getting a lab test here doesn't require entering that machine. Test centers sit in ordinary plazas from Stone Oak down to Southtown and out along Loop 410 and 1604. Order online, skip the referral, walk in, done.

🔒 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
6100 Bandera Rd Ste 400, San Antonio, TX 78238
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 23+ test centers near you →
Over 4,500 testing centers nationwide · 48 states, including New York

Testing in San Antonio - start here

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

Getting tested in San Antonio

The Medical Center area off Fredericksburg Road has the densest cluster, with more options along San Pedro toward Stone Oak, and on the Northeast side near Randolph. Loop 410 or 1604 will get you within a few minutes of most of them, and parking is free and easy everywhere.

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 San Antonio 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.
Is there a test center near the Medical Center district?
Several — it's the densest concentration in the city. But if you're coming from Stone Oak, Alamo Ranch, or the Southside, enter your ZIP first; there's likely a center much closer to you than the Medical Center traffic.
Lab testing near San Antonio