Blood tests in San Antonio, TX: Quest Diagnostics and Labcorp locations near you
There are 24 Quest Diagnostics and Labcorp patient service centers within 20 miles of downtown San Antonio; the nearest is Labcorp at 1200 Brooklyn Ave, Ste 165, San Antonio, about 1 mile from the center. Order your tests online, choose Quest or Labcorp at checkout, and walk into any of them with the emailed requisition and a photo ID — no doctor's visit, referral or insurance. Results post to your portal in 1–3 business days. Locations, hours and phone numbers below were checked September 27, 2026.
- Locations
- 24 within 20 mi
- Labs
- Quest Diagnostics · Labcorp
- Appointment
- Walk-ins at most sites
- Per-order fee
- $6, nothing at the draw
Quest Diagnostics locations near San Antonio (12)
Sorted by distance from downtown San Antonio (ZIP 78205). Hours as listed by the lab on September 27, 2026; confirm before a Saturday or holiday visit.
Quest Diagnostics
4 mi5921 Broadway, San Antonio, TX 78209
Mon–Fri 7:00AM – 4:00PM · Sat 7:30AM – 11:30AM · Sun closed
Quest Diagnostics
5 mi3859 E Southcross Blvd, Suite A, Minton Plaza, San Antonio, TX 78222
Mon–Fri 7:00AM – 3:30PM · Sat–Sun closed
Quest Diagnostics
7 mi8538 Ih-35 South, San Antonio, TX 78211
Mon–Fri 7:00AM – 12:00PM;1:00PM – 4:00PM · Sat 7:00AM – 11:30AM;12:00PM – 2:00PM · Sun closed
Quest Diagnostics
7 mi8601 Village Drive, Suite 106, San Antonio, TX 78217
Mon–Fri 7:00AM – 4:00PM · Sat–Sun closed
Quest Diagnostics
7 mi7959 Fredericksburg Rd, Ste 117, San Antonio, TX 78229
Mon–Fri 7:30AM – 4:30PM · Sat 7:30AM – 11:30AM · Sun closed
Quest Diagnostics
8 mi6100 Bandera Road, Suite 400, San Antonio, TX 78238
Mon–Fri 8:00AM – 5:00PM · Sat–Sun closed
Quest Diagnostics
9 mi8923 W Military Dr, San Antonio, TX 78245
Mon–Fri 7:00AM – 12:00PM;1:00PM – 4:00PM · Sat–Sun closed
Quest Diagnostics
12 mi12709 Toepperwein Rd, Ste 207, Live Oak, TX 78233
Mon–Fri 7:00AM – 4:00PM · Sat–Sun closed
Quest Diagnostics
13 mi11212 State Highway 151, Ste 210 Medical Plaza I, San Antonio, TX 78251
Mon–Fri 7:00AM – 4:00PM · Sat–Sun closed
Quest Diagnostics
13 mi1139 E Sonterra Blvd, Suite 525, San Antonio, TX 78258
Mon–Fri 7:00AM – 4:00PM · Sat 7:30AM – 11:30AM · Sun closed
Quest Diagnostics
13 mi18707 Hardy Oak Blvd, Suite 560, San Antonio, TX 78258
Mon–Fri 8:00AM – 5:00PM · Sat–Sun closed
Quest Diagnostics
13 mi7323 N Loop 1604 E, Ste 501, Live Oak, TX 78233
Mon–Wed 8:00AM – 12:00PM;1:00PM – 5:00PM · Thu 8:00AM – 12:00PM;1:00PM – 4:30PM · Fri 8:00AM – 12:00PM;1:00PM – 5:00PM · Sat 7:30AM – 11:30AM · Sun closed
Labcorp locations near San Antonio (12)
Sorted by distance from downtown San Antonio (ZIP 78205). Hours as listed by the lab on September 27, 2026; confirm before a Saturday or holiday visit.
Labcorp
1 mi1200 Brooklyn Ave, Ste 165, San Antonio, TX 78212
Mon–Fri 8:00AM – 12:30PM;1:30PM – 4:30PM · Sat–Sun Closed
Labcorp
1 mi1303 McCullough Ave, Ste 429, San Antonio, TX 78212
Mon–Fri 8:00AM – 12:00PM;1:00PM – 4:30PM · Sat–Sun Closed
Labcorp
5 mi3103 SE Military Dr, Ste 104, San Antonio, TX 78223
Mon–Fri 8:00AM – 12:30PM;1:30PM – 4:30PM · Sat–Sun Closed
Labcorp
6 mi7430 Barlite Blvd, Ste 108, San Antonio, TX 78224
Mon–Fri 8:00AM – 12:30PM;1:30PM – 5:00PM · Sat–Sun Closed
Labcorp
6 mi3338 Oakwell Ct, Ste 208, San Antonio, TX 78218
Mon–Fri 8:00AM – 12:00PM;1:00PM – 4:30PM · Sat–Sun Closed
LABCORP
7 mi8601 Village Dr, Ste 202, San Antonio, TX 78217
Mon 7:30AM – 4:30PM · Tue–Fri 1:30PM – 4:00PM · Sat–Sun Closed
LABCORP
8 mi8042 Wurzbach Rd, Ste 140, San Antonio, TX 78229
Mon–Fri 7:30AM – 12:00PM;1:00PM – 4:00PM · Sat–Sun Closed
Labcorp
8 mi5282 Medical Dr, Ste 190, San Antonio, TX 78229
Mon–Fri 7:30AM – 12:00PM;1:00PM – 4:00PM · Sat–Sun Closed
Labcorp
9 mi9618 Huebner Rd, Ste 214, San Antonio, TX 78240
Mon–Fri 8:00AM – 12:30PM;1:30PM – 4:30PM · Sat–Sun Closed
Labcorp
12 mi12602 Toepperwein Rd, Ste 220, San Antonio, TX 78233
Mon 7:00AM – 4:00PM · Tue–Fri 9:00AM – 12:00PM,2:00PM – 4:00PM · Sat–Sun Closed
Labcorp
13 mi3903 Wiseman Blvd, San Antonio, TX 78251
Mon–Fri 8:00AM – 12:30PM;1:30PM – 4:30PM · Sat–Sun Closed
Labcorp
13 mi19016 Stone Oak Pkwy, San Antonio, TX 78258
Mon–Fri 7:00AM – 12:00PM;1:00PM – 4:30PM · Sat–Sun Closed
How to get a blood test in San Antonio
- Choose your tests — single markers or a panel — and check out. A licensed physician reviews and authorizes the order, usually within minutes, and the requisition is emailed to you.
- Walk into any Quest Diagnostics and Labcorp location above for the lab you picked at checkout. Bring the requisition (on your phone is fine) and a photo ID. Fasting tests are easiest first thing in the morning; most centers open by 7 a.m.
- Results post to your TestWell portal in 1–3 business days with reference ranges and a physician review, and you can download the report to share with your own doctor.
Most-ordered tests in Texas
Share of TestWell orders from Texas that included each item, September 2025 – September 2026.
| Test | Price | Share of orders |
|---|---|---|
| TSH + Free T4 | $27.99 | 11.4% |
| Comprehensive Metabolic Panel | $22.99 | 9.5% |
| Tuberculosis (TB) Blood Test | $91.99 | 9.5% |
| CBC with Differential | $21.99 | 7.6% |
| IGF-1 (Insulin-like Growth Factor) | $37.99 | 7.6% |
| Hemoglobin A1c | $21.99 | 5.7% |
| Vitamin B12 | $25.99 | 5.7% |
| Essential Health Panel | $189.99 | 4.8% |
Frequently asked questions
- Do I need an appointment for a blood draw in San Antonio?
- Most Quest Diagnostics and Labcorp patient service centers in San Antonio take walk-ins; Quest and Labcorp also let you book a time slot on their sites, which shortens the wait at busy locations. Order your test on TestWell first — the physician-authorized requisition is emailed within minutes — then bring it and a photo ID to any location listed here.
- Can I get blood work in San Antonio without a doctor or insurance?
- Yes. Texas allows direct-access testing, and TestWell's licensed physician network authorizes every order as part of the price. Order online, choose Quest or Labcorp at checkout, and walk into any location listed here — no insurance, referral or office visit, with HSA and FSA cards accepted.
- How much does a blood test cost in San Antonio?
- The same as everywhere on TestWell: the test's listed price plus one $6 lab processing fee per order, with no draw fee or physician fee at the location. Common tests such as a CBC, CMP or TSH are in the low tens of dollars; panels bundle several tests at a discount. Prices are on each test page and are the same at every San Antonio location.
- Which location should I choose — Quest Diagnostics or Labcorp?
- Whichever is closer or has hours that fit. Quest Diagnostics and Labcorp are both CLIA-certified national laboratories and results are clinically equivalent; a few specialty tests are available at only one of them, which the test page states. Pick the lab at checkout and the requisition is written for that network.
- How long do results take from a San Antonio draw?
- Most routine results post to your TestWell portal in 1–3 business days after the draw, with each value shown against its reference range and reviewed by a physician; specialty tests take longer, and each test page states its turnaround.