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STD Testing in Los Centenarios, TX: Free, Same-Day & Confidential

Webb County reports about 17 syphilis cases per 100,000 residents, near the US average. If you are in Los Centenarios, Texas, and wondering whether you have symptoms or just want peace of mind, community and public clinics tend to be low-cost while private labs can offer faster results and more flexible scheduling. Your options in Los Centenarios are listed below.

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  • Clinics, labs & at-home kits compared
  • Free & low-cost options included
  • Backed by CDC, CMS & Census data
  • Editorially reviewed

Available testing centers

STD testing near Los Centenarios, TX

4 testing options are listed for Los Centenarios, TX. The nearest, ASAS Health, is about 14.9 miles away. Compare community and public clinics, private labs, and at-home kits below.

Most reviewed 14.9 miles

ASAS Health

Where these reviews come from

Review sources

  • Google161
  • EasySTD5
Rated 4.7 out of 5 from 166 reviews

ASAS Health in Laredo covers gonorrhea, chlamydia, syphilis, conventional HIV, and hepatitis A, B, and C testing, with same-visit treatment for bacterial STIs confirmed on the spot. Fees run on a sliding scale, and Medicaid, Medicare, and most insurance are accepted. An appointment is required.

Tests & treats Sliding-scale
Address
2412 Jacaman Road, Suite 103 Laredo, TX 78041
Booking
Appointment required
Opening hours
  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 12:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Premium Partner

Labcorp

Results in 1–2 days
Where these reviews come from

Review sources

  • Google67
  • EasySTD5
Rated 3.1 out of 5 from 72 reviews
Address
6801 Mcpherson Road, Laredo, TX 78041 16.3 miles away
Opening hours
  • Monday 7:30 AM – 4:30 PM
  • Tuesday 7:30 AM – 4:30 PM
  • Wednesday 7:30 AM – 4:30 PM
  • Thursday 7:30 AM – 4:30 PM
  • Friday 7:30 AM – 4:30 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner

Clinical Pathology Labs

Results in 1–2 days
Where these reviews come from

Review sources

  • Google51
  • EasySTD4
Rated 4.3 out of 5 from 55 reviews
Address
6801 Mcpherson, Laredo, TX 78041 16.3 miles away
Opening hours
  • Monday 7:30 AM – 4:30 PM
  • Tuesday 7:30 AM – 4:30 PM
  • Wednesday 7:30 AM – 4:30 PM
  • Thursday 7:30 AM – 4:30 PM
  • Friday 7:30 AM – 4:30 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner

Quest Diagnostics

Results in 1–2 days
Where these reviews come from

Review sources

  • Google95
  • EasySTD5
Rated 3.6 out of 5 from 100 reviews
Address
702 East Calton Road, Laredo, TX 78041 17.5 miles away
Opening hours
  • Monday 7:00 AM – 5:00 PM
  • Tuesday 7:00 AM – 5:00 PM
  • Wednesday 7:00 AM – 5:00 PM
  • Thursday 7:00 AM – 3:00 PM
  • Friday 7:00 AM – 12:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Free tool · not a clinic

When can I test? Exposure-window calculator

Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.

Detection windows for every STI
Infection Earliest reliable test Conclusive after
Chlamydia 7 days after exposure 14 days after exposure
Gonorrhea 7 days after exposure 14 days after exposure
Trichomoniasis 7 days after exposure 28 days after exposure
HIV (NAT / RNA) 10 days after exposure 33 days after exposure
HIV (4th-gen Ag/Ab) 18 days after exposure 45 days after exposure
HIV (antibody) 21 days after exposure 84 days after exposure
Syphilis 21 days after exposure 42 days after exposure
Hepatitis B 21 days after exposure 42 days after exposure
Hepatitis C 56 days after exposure 77 days after exposure
Herpes (HSV) 28 days after exposure 112 days after exposure

Guidance only, confirm timing with a clinician. A negative result before the conclusive date may need a repeat test.

Find your match in 10 seconds

What matters most to you?

What will it cost? Estimate your STD test

Typical out-of-pocket ranges by option, actual cost depends on which tests you need.

  • Public / community clinic

    Free HIV testing is common

    $0–$25

  • Private lab (self-pay)

    Never billed to insurance

    $24–$200

  • At-home kit

    Mailed to your door, private

    From $49

  • Doctor / urgent care

    Often $0 preventive with insurance

    $0–$50 copay

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Rate what mattered to you, no account needed. Reviews are moderated before publishing.

Privacy & discretion
Wait time
Staff & comfort
Value for cost

Every other option

More ways to get tested in Los Centenarios, TX

Beyond the dedicated testing centers above: at-home kits by mail, hospital labs certified for STI testing, local clinicians who can order a panel during a regular visit, pharmacies for self-test kits and prescriptions, and online PrEP & treatment.

Test from home

At-home STD testing in Los Centenarios, TX

The nearest testing center is about 15 miles away; if you'd rather skip the trip, an at-home kit ships to Los Centenarios, you collect the sample privately, and mail it back to a CLIA-certified lab. Results come online in days, with a clinician available if anything is positive. Same labs as a clinic, no waiting room, and you can read how accurate at-home STD tests are before you order.

Want a free option first? The CDC-supported TakeMeHome (opens in a new tab) program mails free at-home HIV self-test kits, and, in many areas, free STI kits, to your door, with no insurance or payment needed. The paid kits below add broader panels and faster turnaround.

Every kit uses CLIA-certified labs. At-home testing is for screening; a reactive result should be confirmed and treated by a clinician. Prices and panels shown are illustrative and change often, confirm current details on the provider's site.

Also in the area

Other CLIA-certified labs near Los Centenarios, TX

Beyond the public testing sites above, these federally certified (CLIA) labs serve Webb County, each lab's town is shown on its card below. Many test through a doctor's order or by appointment rather than walk-in, so call ahead to confirm STD/STI testing and availability before visiting.

  • Doctors Hospital of Laredo Emergency Room South A

    2901 Jaime Zapata Memorial Highway, Laredo, TX 78043

    CMS-certified lab Accredited · Joint Commission

    • Full STD panel
    Call Directions

  • Laredo VA OPC

    6551 Star Court, Laredo, TX 78043

    CMS-certified lab Accredited · Joint Commission

    • Full STD panel
    Call Directions

  • Stat Emergency Center

    1023 Bob Bullock Loop, Laredo, TX 78043

    CMS-certified lab Accredited · COLA

    • STD testing
    Call Directions

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Los Centenarios. A CLIA certificate records only that a laboratory is federally certified — it does not confirm the site performs STD testing, nor its hours, price or access. Inclusion is not an endorsement; always call to verify.

Local clinicians

Clinicians near Los Centenarios, TX who may help arrange STD testing

Beyond dedicated clinics, 76 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Los Centenarios. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 10 offer telehealth.

  • Horacio Diaz, MD

    Family medicine · 3402 East Del Mar Boulevard, Laredo

    Call Directions

  • Pablo Martinez, MD Telehealth

    Family medicine · 2324 Jacaman Road, Laredo

    Call Directions

  • Andres Garcia Zuniga, MD Telehealth

    Internal medicine · 6416 Polaris, Laredo

    Directions

  • Jennifer Garcia-Davalos, MD

    Internal medicine · 6416 Polaris Drive, Laredo

    Call Directions

  • Liz Millan, MD

    OB-GYN · 7109 North Bartlett Avenue, Laredo

    Call Directions

  • Ricardo Cigarroa, MD

    Internal medicine · 7105 North Bartlett Avenue, Laredo

    Call Directions

These are registry-listed clinicians, not dedicated STD-testing clinics. CMS records do not independently verify current licensure, testing services, availability, price, or new-patient status. Confirm each detail before booking. Source: CMS Doctors & Clinicians.

Nearby pharmacies

Pharmacies near Los Centenarios, TX

No pharmacy near Los Centenarios, TX publishes an STD-related service or holds a current CLIA testing certificate, so these are simply the closest. Contact a location directly to confirm counter hours, services, prices, and availability before visiting.

  • Herrera Pharmacy Loop 20

    15 mi
    Rx pickupCondoms / EC
    Directions

  • Lakeside Pharmacy

    15 mi
    Rx pickupCondoms / EC
    Directions

  • Oncology & Hematology of South Texas Pharmacy

    15 mi
    Rx pickupCondoms / EC
    Directions

  • Laredo RX

    16 mi
    Rx pickupCondoms / EC
    Directions
  • Walmart Pharmacy 16 mi
    Rx pickupAt-home STI kitsHPV & Hep B vaccinesCondoms / EC
    Directions
  • CVS Pharmacy 16 mi
    Rx pickupOTC HIV self-testAt-home STI kitsMinuteClinic STI careHPV & Hep B vaccinesCondoms / EC
    Directions

Showing the 6 closest pharmacies to Los Centenarios, TX.

Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.

Prevention & treatment

PrEP, prevention & online treatment

Testing is one step. For residents of Los Centenarios, telehealth covers the rest: HIV-prevention medication (PrEP) and DoxyPEP to lower future risk, and discreet online treatment if a result comes back positive. All prescribed by licensed U.S. clinicians.

Pricing varies by insurance and changes often, confirm on the provider's site. These services are not a substitute for emergency care.

STD stats & rates

STDs & HIV in Webb County: the local picture

How reported STI rates in Webb County, the county that includes Los Centenarios, compare with Texas and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~34% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#49 of 254 Texas counties for chlamydia, a higher rate than 81% of the state

Reported STD rates per 100,000, Webb County vs Texas vs U.S.

Webb County Texas U.S. ▲▼ = Webb County vs the state average
Infection Webb County Texas United States
Chlamydia
474.1 1,276 cases ▼ 4%
491.9 492.2
Gonorrhea
87.3 235 cases ▼ 51%
176.4 179.5
Syphilis (P&S)
16.7 45 cases ▲ 11%
15 15.8
Syphilis (early)
20.8 56 cases ▼ 21%
26.4 16
Syphilis (late/unknown)
55 148 cases ▲ 24%
44.3 29.5

Rates per 100,000 population, 2023. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis). Population figures: U.S. Census Bureau ACS. These figures are the latest available surveillance estimates. Bars are scaled to the highest rate shown.

Reading these numbers: reported case rates only count infections that were actually tested for and diagnosed, so they track local screening effort as much as true spread: a higher rate can reflect more testing, a lower one less. Either way, most STIs cause no symptoms, so treat the figures above as context rather than a verdict, and test on the CDC's schedule regardless of how your area looks.

Reported STD rates in Webb County over time (per 100,000)

Chlamydia ▲ 0% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 250 500 2020202120222023

Between 2020 and 2023 in Webb County, chlamydia has risen from 387.1 to 474.1 per 100,000 (22%), gonorrhea has risen from 52.4 to 87.3 per 100,000 (67%), and P&S syphilis has risen from 2.6 to 16.7 per 100,000 (542%).

The 2020 dip reflects reduced pandemic-era screening, not lower transmission. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis).

Community health context

What shapes testing access in and around Los Centenarios, TX

Adults uninsured
40.1%
No routine checkup
29.5%
Binge drinking
15.4%
Frequent mental distress
18.5%
Depression
20%
Below poverty line
26.8%
Primary-care ratio
3,268 : 1
Webb County
  • Primary-care shortage score 21 / 26
  • Medically Underserved Area · IMU 54.3
  • Social Vulnerability Index · 98th percentile nationally

Sources: CDC PLACES (ZIP), County Health Rankings, CDC/ATSDR SVI, HRSA HPSA, HRSA MUA/P, Neighborhood Atlas ADI. Lower insurance coverage, fewer routine checkups, and a thin primary-care ratio all raise the value of low-cost public clinics and at-home testing in Webb County.

Local HIV snapshot

HIV in Webb County (2023)

People living with HIV
295 / 100k
New diagnoses (2023)
36cases countywide
On PrEP (coverage)
43.6%

Webb County HIV care continuum (2023)

Webb County recorded 17.1 new HIV diagnoses per 100,000 (2023), against 20.2 statewide and 13.7 nationally. Among Webb County residents living with HIV, 59.2% are in care · 52.5% are virally suppressed. Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.

Sources: AIDSVu (Emory/Gilead) · CDC AHEAD · CDC AtlasPlus · CDC NCHHSTP AtlasPlus (county care continuum). The CDC recommends everyone aged 13–64 test for HIV at least once: every lab and clinic listed above offers HIV testing, and free rapid HIV testing is available at a local health department.

Pregnant or planning to be?

Congenital syphilis is the fastest-rising STI: what to test, and when

Congenital syphilis, passed from parent to baby in pregnancy, is the fastest-rising STI in the country. U.S. cases climbed from 2,163 in 2020 to 3,882 in 2023. It is almost entirely preventable: the CDC recommends a syphilis test at the first prenatal visit, and every clinic and lab listed for Webb County tests for syphilis.

Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).

Reviewed & Fact-Checked · Updated

Reviewed by EasySTD Editorial Team (opens in a new tab)

Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines → (opens in a new tab)

17 Sources

Local resources & officials

Data & references

Local context

About Los Centenarios, TX

Young adults juggling split shifts and shared rides along US 59 know that an errand requiring its own dedicated trip often gets deferred until the calendar clears, which, for many people in their late teens and twenties, means weeks pass before it happens. Webb County's STI rates reflect the real cost of that kind of delay, and Los Centenarios sits squarely within that county picture. The under-35 crowd here is substantial, and those years (new partners, evolving routines, gaps in regular medical care) are exactly when consistent screening matters most. Catching something early keeps treatment simple and protects the people someone is close to; there's nothing complicated about the logic, only about the logistics.

With only one option listed on this page serving the area around Los Centenarios, getting tested means planning a real drive, not a lunch-break errand. That's not a reason to skip it, but it is a reason to schedule rather than intend. Knowing ahead of time that the trip takes a chunk of the day makes it possible to actually block that chunk, pack the appointment into a longer Lloyd Bentsen Highway run, and leave having checked the one thing that's easy to put off precisely because it's invisible until it isn't.

Getting there

How residents reach STD testing in Los Centenarios, TX

Walkability 7.87 / 20 · Below average

At 7.87/20 on the EPA walkability index, day-to-day errands in Los Centenarios generally mean driving: plan on a car or rideshare to reach a clinic, and check each listing's hours and phone before you go.

Source: EPA National Walkability Index 2021.

Map of 4 STD & STI testing locations in Los Centenarios, Texas, EasySTD

ZIP 78043 snapshot

Residents
44,044
Median age
28.7
Median income
$54,280

ZIP-level Census figures for the wider 78043 area around Los Centenarios: a single ZIP can span several communities, so they describe the area, not Los Centenarios alone.

Los Centenarios sits in Webb County, ZIP 78043. Local context that shapes where residents test:

Major routes

  • US 59 (Lloyd Bentsen Highway)

Reference

STD testing in Los Centenarios, TX: screening, costs & privacy

Everything to know before you test in Webb County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Texas law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.

Who should test, and when

CDC screening schedule + each infection's detection window

Who should get tested, and how often

Based on current CDC screening recommendations.

GroupTestsHow often
Everyone aged 13–64 HIV At least once
Sexually active women under 25 Chlamydia, gonorrhea Every year
Women 25+ with new or multiple partners Chlamydia, gonorrhea Every year
Pregnant people HIV, syphilis, hepatitis B & C, chlamydia Early in pregnancy
Gay & bisexual men (MSM) Chlamydia, gonorrhea, syphilis, HIV Every 3–6 months
Anyone who shares injection equipment HIV, hepatitis B & C At least yearly
All adults at least once Hepatitis C At least once

When to test: STD detection windows

Testing too early can return a false negative, confirm timing with a Los Centenarios-area provider.

InfectionEarliest reliable testSample
Chlamydia 1–2 weeks Urine or swab
Gonorrhea 1–2 weeks Urine or swab
Trichomoniasis 1–4 weeks Urine or swab
HIV (NAT / RNA) 10–33 days Blood
HIV (4th-gen Ag/Ab) 18–45 days Blood
HIV (antibody) 3–12 weeks Blood / oral
Syphilis 3–6 weeks Blood
Hepatitis B 3–6 weeks Blood
Hepatitis C 8–11 weeks Blood
Herpes (HSV) 4–16 weeks (antibody); swab a sore Blood / swab
Browse all STD & STI guides

What each STD test costs

Medicare reference prices per lab test, a benchmark before you pay out of pocket

These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Los Centenarios often test free or on a sliding scale; private labs and at-home kits bundle several tests into one fee. Use this as a per-test benchmark before you pay out of pocket, or see the full guide to STD test costs for insurance, free, and at-home options.

TestReference priceCPT / HCPCS
Chlamydia (NAAT) $47.80 87491
Gonorrhea (NAAT) $47.80 87591
Trichomoniasis (NAAT) $47.76 87661
HIV-1/2 antigen/antibody $26.87 87389
HIV-1/2 antibody $22.44 86703
Syphilis (RPR/VDRL) $5.61 86592
Syphilis (treponemal antibody) $17.49 86780
Herpes (HSV NAAT) $47.76 87529
Hepatitis B surface antigen $15.33 87340
Hepatitis C antibody $29.16 86803

Source: Medicare Clinical Laboratory Fee Schedule, CMS, 2025 rates (data.cms.gov). Reference rate for the lab assay only: a clinic visit, sample collection, or a bundled multi-test panel may cost more. Medicaid and most insurers cover STD screening at no out-of-pocket cost.

Confidentiality & consent in Texas

Minor consent and partner treatment (EPT) under state law, plus how to test privately

Two things that actually depend on Texas law: who can consent, and whether partners can be treated without their own visit. Everything else about testing privately is the same nationwide (see below).

Can a minor consent on their own?

In Texas, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.

Can my partner be treated too? (EPT)

Texas permits Expedited Partner Therapy (EPT): if you test positive for chlamydia or gonorrhea, your provider can give you medication (or a prescription) to pass to your partner, no separate exam or appointment needed for them.

Keeping a test private works the same in every state. Whether an STD test shows on insurance (the EOB), how to test anonymously, and self-pay options that leave no insurance trail don’t change by location.

Learn more about confidential STD testing in Texas

Source: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.

Good to Know

STD testing FAQs for Los Centenarios, TX

Answers to the questions people ask most before getting tested.

Where's the nearest STD testing to Los Centenarios, TX?

ASAS Health, about 14.9 mi away, with 4 options within 30 miles.

How much does STD testing cost near Los Centenarios, TX?

Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.

Can I get tested in Los Centenarios, TX without insurance?

Public clinics serve people without insurance, often on a sliding scale.

What's included in a full panel near Los Centenarios, TX?

A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.

How common is chlamydia in Webb County?

Webb County reported ~474 chlamydia cases per 100,000 in 2023, below the Texas average.

Can someone under 18 get tested in Texas without a parent?

In Texas, people under 18 can consent to confidential STD testing and treatment on their own.

How is trichomoniasis tested near Los Centenarios, TX?

A urine test or swab finds trichomoniasis, one of the most treatable STIs.

Can a cold sore cause genital herpes?

It can; oral HSV-1 transmits to the genitals during oral sex.

What samples are used for STD testing near Los Centenarios, TX?

Usually urine or a swab for chlamydia/gonorrhea, and blood for HIV, syphilis, and hepatitis.

What should I do after sexual assault?

Go to an ER or call RAINN (800-656-4673); they provide testing, PEP, and support right away.

Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.