Syphilis cases in Grayson County run about 44% lower than the US average. If you live in Denison, Texas, and need testing after a possible exposure or as part of routine care, clinics may bill insurance or offer sliding-scale fees, while many private labs let you pay a flat self-pay price. Find options below.
Available testing centers
12 testing options are listed for Denison, TX. The nearest, Quest Diagnostics, is about 6.7 miles away. Compare community and public clinics, private labs, and at-home kits below.
Listings tagged Community health center are federally funded health centers and rural clinics that treat everyone regardless of insurance or ability to pay: required to bill on a sliding fee scale and provide confidential care, and in many states minors may consent to their own STI testing. A Title X tag flags centers funded for confidential family-planning services; confirm current participation when you call.
Source: CMS FQHC & Rural Health Clinic enrollment files (data.cms.gov), refreshed quarterly. Title X status reflects the latest OPA grantee list.
Callie Clinic in Sherman covers rapid HIV, hepatitis C, syphilis, gonorrhea, and chlamydia testing with same-visit treatment for bacterial infections; fees run on a sliding scale open to all, with Medicaid and insurance accepted. Appointments are required. Ryan White funding anchors its HIV care from first test through long-term treatment.
Testing positive at a clinic that handles only diagnostics leaves patients to navigate HIV care on their own, finding a provider, establishing care, managing medications across separate systems. Callie Clinic, backed by Ryan White funding, carries a patient from initial test through ongoing HIV medical treatment and medication adherence counseling within the same practice.
When PrEP or PEP requires a separate prescribing relationship, the gap between need and medication is measured in days or dropped follow-through. Callie Clinic holds that prescription capacity directly: uninsured patients can access PrEP at reduced cost, and PEP is available on-site so prevention doesn't depend on finding a second provider.
Callie Clinic provides hepatitis C treatment on-site, which means a reactive rapid hep C test doesn't send someone out the door in search of a specialist. The path from diagnosis to a treatment plan runs through the same location.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Apr 2026 · Source: CDC NPIN
Grayson County Health Department in Sherman runs its full STI panel (HIV, syphilis, gonorrhea, chlamydia, and herpes) at no cost to patients, with insurance, Medicaid, and Medicare accepted and a sliding scale applied; appointments are required, and confirmed bacterial infections are treated the same visit.
Plenty of clinics post a sliding scale and still hand back a bill. At Grayson County Health Department, the fee structure closes at zero (testing, treatment, vaccines, counseling) all of it, regardless of what insurance you carry or whether you carry any at all.
When a clinic can't provide care in Spanish directly, the gap shows up in follow-through: questions go unasked, instructions get fuzzy, and treatment stalls. Grayson County Health Department delivers STI care, counseling, and prevention education in Spanish, keeping the conversation complete from the first question to the last instruction.
Leaving herpes off the standard panel means a separate appointment, a separate cost, and a gap in the picture. Grayson County Health Department tests for herpes alongside HIV, syphilis, gonorrhea, and chlamydia. One visit covers what a narrower panel would leave open.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN
True Options Pregnancy Center in Sherman tests for gonorrhea and chlamydia at no charge, donations accepted but never required, with treatment available on-site and an appointment needed to get started.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Jun 2026 · Source: CDC NPIN
Family Health Center of Southern Oklahoma in Kingston tests for gonorrhea, chlamydia, syphilis, HIV, hepatitis B, and hepatitis C on a sliding-scale fee accepted by Medicaid, Medicare, and most insurers. HPV and hepatitis A vaccines round out the visit, which requires an appointment.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN
Oklahoma State Department of Health in Durant tests for gonorrhea, chlamydia, syphilis, HIV, and hepatitis B and C on a sliding-scale basis, including free HIV and STI testing, with same-visit treatment for bacterial infections; an appointment is required.
Paying cash for STI care (testing, treatment, vaccines, counseling) adds up fast at most providers. At Oklahoma State Department of Health in Durant, every service on the menu runs at no fee, full stop, whether that's your gonorrhea treatment or your hepatitis B vaccine series.
Many STI clinics offer English-only care and improvise around the gap. Oklahoma State Department of Health in Durant provides services directly in Spanish, so conversations about testing, treatment, and prevention happen in the language that makes precision possible.
Standard STI panels at many clinics cover gonorrhea, chlamydia, syphilis, and HIV, and stop there. Oklahoma State Department of Health in Durant adds hepatitis B and hepatitis C to the same visit, giving a fuller picture of bloodborne and sexual transmission in a single appointment.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Oct 2025 · Source: CDC NPIN
A public safety-net rural health clinic about 25 miles from Denison. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Carevide in Bonham runs on a sliding scale and accepts Medicaid, Medicare, and private insurance; appointments are required. The panel covers HIV, syphilis, gonorrhea, chlamydia, herpes, hepatitis B, hepatitis C, and TB, with same-visit treatment for bacterial STIs.
When a language barrier interrupts STI care at Carevide in Bonham, the consequence is a missed diagnosis or a treatment conversation that never fully lands. Producing a gap that a follow-up visit may not close. Carevide carries Spanish-speaking staff and interpretation services so that counseling, results, and treatment decisions happen completely, in the same appointment.
For anyone managing care without a regular primary provider (paying on a sliding scale, navigating gaps in coverage) Carevide's panel in Bonham already includes herpes, hepatitis B, and hepatitis C testing in addition to HIV, syphilis, gonorrhea, and chlamydia. That breadth means a single appointment can surface infections that a narrower panel would leave undetected.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN
FHCSO-Administration Office in Tishomingo carries federally qualified health center standing, which means its STI screening (syphilis, gonorrhea, and chlamydia testing) runs on a sliding-scale fee tied to household income, so out-of-pocket cost adjusts to what each patient can actually pay.
Tests offered
Fees & payment
Free tool · not a clinic
Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each 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.
Typical out-of-pocket ranges by option, actual cost depends on which tests you need.
Public / community clinic
Free HIV testing is common
Private lab (self-pay)
Never billed to insurance
At-home kit
Mailed to your door, private
Doctor / urgent care
Often $0 preventive with insurance
No centers match those filters. Clear the service-type filter or the opening-hours filters to see every center.
Every other option
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
The nearest testing center is about 7 miles away; if you'd rather skip the trip, an at-home kit ships to Denison, 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.
In-home collection
$79 & up
Best range: couples & full panels
$79 & up
Best for simplicity & support
$89 & up
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
Beyond the public testing sites above, these federally certified (CLIA) labs serve Grayson 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.
5016 South US Hwy 75, Denison, TX 75020
CMS-certified lab Accredited · College of American Pathologists
5125 Texoma Medical Center Dr Suite 300, Denison, TX 75020
CMS-certified lab Accredited · College of American Pathologists
5012 South US Hwy 75 3rd Floor, Denison, TX 75020
CMS-certified lab Accredited · COLA
5130 Pool Road Suite 200, Denison, TX 75020
CMS-certified lab
5125 Texoma Medical Center Dr Suite 100, Denison, TX 75020
CMS-certified lab Accredited · COLA
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Denison. 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
Beyond dedicated clinics, 191 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Denison. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 36 offer telehealth.
Molly Trowbridge, MD
Family medicine · 5012 South US Hwy 75, Denison
Angela Latham, MD Telehealth
Family medicine · 5012 South US Hwy 75, Denison
Sarah Branam, DO Telehealth
Family medicine · 5012 South US Hwy 75, Denison
Simon Studeny, MD
Family medicine · 5016 South US Hwy 75, Denison
Clifford Garvin, MD Telehealth
Family medicine · 1300 North State Hwy 91, Denison
Amy Klein, DO
OB-GYN · 5016 South US Hwy 75, Denison
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
No pharmacy near Denison, 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.
0.3 mi The Medicine Shoppe
0.5 miLifechek 17
0.6 miMed Choice Vital Care
0.8 miParks Drug & Bullard Home Medical Equipment
1.1 mi
2.2 mi Showing the 6 closest pharmacies to Denison, TX.
Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.
Prevention & treatment
Testing is one step. For residents of Denison, 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.
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
From $0 insured
Telehealth PrEP & DoxyPEP with at-home testing and ongoing monitoring
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
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
How reported STI rates in Grayson County, the county that includes Denison, compare with Texas and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~23% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#129 of 254 Texas counties for chlamydia, a higher rate than 49% of the state
| Infection | Grayson County | Texas | United States |
|---|---|---|---|
| Chlamydia | 295.4 434 cases ▼ 40% | 491.9 | 492.2 |
| Gonorrhea | 73.5 108 cases ▼ 58% | 176.4 | 179.5 |
| Syphilis (P&S) | 8.8 13 cases ▼ 41% | 15 | 15.8 |
| Syphilis (early) | 21.1 31 cases ▼ 20% | 26.4 | 16 |
| Syphilis (late/unknown) | 20.4 30 cases ▼ 54% | 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.
Between 2020 and 2023 in Grayson County, chlamydia has fallen from 306.2 to 295.4 per 100,000 (4%), gonorrhea has fallen from 169 to 73.5 per 100,000 (57%), and P&S syphilis has risen from 0.7 to 8.8 per 100,000 (1157%).
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
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 Grayson County.
Local HIV snapshot
Grayson County HIV care continuum (2023)
Grayson County recorded 6.6 new HIV diagnoses per 100,000 (2023), against 20.2 statewide and 13.7 nationally. Among Grayson County residents living with HIV, 87.5% are in care · 76.9% 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.
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 Grayson County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Flora Park sits near the quieter residential edges of Denison, the kind of place where homeownership is the norm and households tend to run larger than the national average. That settled quality is real, but it coexists with a labor market where a meaningful share of working-age adults are either outside the workforce or looking for work, and where fewer than one in seven households clears six figures. Rent around $810 a month is genuinely modest, yet when income is stretched and employment is uneven, a clinic visit can feel like one more competing claim on a limited day.
That pressure falls unevenly on young adults, people in their late teens and twenties, who account for Grayson County's steepest STI rates and who are also the most likely to be navigating irregular schedules, part-time work, or coverage gaps. US 75 runs through town and connects residents to most of the options listed on this page, but several require a real drive north or south along that corridor, which matters when someone is working around shift hours or relying on a single shared vehicle in a larger household.
For residents without employer coverage, and with nearly four in ten households renting at incomes well below the six-figure threshold, the sliding-scale and no-cost options among the twelve listed here are the practical dividing line between a test that gets scheduled and one that keeps getting postponed.
Getting there
At 6.95/20 on the EPA walkability index, day-to-day errands in Denison 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.
ZIP 75020 snapshot
ZIP-level Census figures for the wider 75020 area around Denison: a single ZIP can span several communities, so they describe the area, not Denison alone.
Denison sits in Grayson County, ZIP 75020. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Denison? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
Reference
Everything to know before you test in Grayson 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.
Based on current CDC screening recommendations.
| Group | Tests | How 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 |
Testing too early can return a false negative, confirm timing with a Denison-area provider.
| Infection | Earliest reliable test | Sample |
|---|---|---|
| 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 |
These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Denison 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.
| Test | Reference price | CPT / 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.
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).
In Texas, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
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 TexasSource: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.
Good to Know
Answers to the questions people ask most before getting tested.
Possibly, Sherman, TX is close; compare it by distance against Quest Diagnostics.
Public clinics are free; private labs ~$24–$139, at-home kits $49+.
Yes, community and public clinics test the uninsured, with sliding-scale fees.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 295 cases per 100,000 residents (2023), below the Texas average.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
In Texas, people under 18 can consent to confidential STD testing and treatment on their own.
Yes, at-home kits ship to 75020; you collect a sample, mail it back, and get results in about 2–5 days.
A clinic offers same-day answers and on-site treatment; an at-home kit trades that for privacy and convenience, both use real lab testing.
Yes, the CDC recommends STI screening early in pregnancy, since untreated infections can affect the baby.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.