HIV diagnoses are about 66% lower in Loudoun County than nationwide. If you need testing in Cascades, Virginia, whether for possible exposure or routine care, you can visit a clinic for provider support and immediate treatment or use an at-home kit for convenience, but you'll have to ship the sample. See your options below.
Available testing centers
9 testing options are listed for Cascades, VA. The nearest, Quest Diagnostics, is about 1.4 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.
Sterling, in Sterling, welcomes walk-in visits for STI screening. No appointment needed. Sliding-scale fees adjust to each patient's income at this federally qualified health center, and a single visit can cover syphilis, gonorrhea, and chlamydia testing in one stop.
Tests offered
Fees & payment
Inova-GoHealth Urgent Care in Ashburn operates within an urgent-care framework, meaning STI testing (including HIV, syphilis, gonorrhea, chlamydia, hepatitis B, herpes, and TB) runs alongside same-day bacterial treatment, with fees billed through insurance or Medicaid and walk-ins welcome.
Leaving herpes or hepatitis B off a panel means a second appointment, a second copay, and weeks of uncertainty while those infections continue unchecked. Inova-GoHealth Urgent Care tests for both on the same visit as the standard bacterial panel, closing that gap before it opens.
When a patient can't fully communicate symptoms or understand a diagnosis, the result is missed treatment. Not a language gap, a care gap. Inova-GoHealth Urgent Care in Ashburn provides interpretation services for non-English speakers, so the clinical conversation lands clearly the first time.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN
Virginia Department of Health in Reston requires an appointment, so scheduling ahead is the entry point, but that single visit covers gonorrhea, chlamydia, syphilis, herpes, HIV, and TB testing alongside same-visit bacterial treatment, PrEP, DoxyPEP, and vaccines, all at no fee.
When cost sits between a diagnosis and its treatment, follow-up gets postponed. Sometimes indefinitely. At Virginia Department of Health Reston, every service on the menu, from initial testing through STI treatment, PrEP initiation, and vaccines, is provided at no fee, closing that gap before it opens.
Virginia Department of Health Reston carries PrEP, PEP, and DoxyPEP (the daily HIV prevention pill, the post-exposure HIV regimen, and the post-exposure bacterial STI antibiotic) as standing services. Having all three available means prevention strategy can be calibrated to actual risk patterns rather than whatever a single-drug program happens to stock.
Virginia Department of Health Reston tests for herpes alongside gonorrhea, chlamydia, syphilis, and HIV. A capability that matters for anyone without a regular provider who needs a complete picture rather than a partial one. Herpes testing is simply part of what the clinic does, not an add-on to negotiate.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Sep 2025 · Source: CDC NPIN
Reston, in Reston, earns its federally qualified standing by serving patients at every income level, including those paying out of pocket, through a sliding-scale fee structure. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia screening, with no appointment needed to get tested.
Tests offered
Fees & payment
Inova in Herndon tests for HIV, hepatitis C, syphilis, gonorrhea, chlamydia, herpes, and TB on a sliding-scale fee structure, with Medicaid and Medicare accepted; bacterial STIs are treated same visit, and appointments are required. All services at no fee.
When cost splits care from follow-through, the unpaid balance that quietly ends a treatment course, Inova in Herndon closes that gap entirely. Every service on the menu, from rapid HIV testing to hepatitis C treatment to the mpox vaccine, is provided at no fee, so a diagnosis never stalls at the billing step.
Inova in Herndon carries both PrEP, daily oral medication that blocks HIV acquisition in HIV-negative individuals, and PEP within its standing clinical capability. Having both regimens available means ongoing HIV prevention is managed under continuous medical oversight, not handed off between providers.
Leaving hepatitis C at a positive antibody result, waiting months for a specialist referral while the virus continues to damage liver tissue, is a measurable harm. Inova in Herndon provides treatment on-site, so the path from diagnosis to a completed cure doesn't depend on a second clinical relationship being established elsewhere.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN
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 1 mile away; if you'd rather skip the trip, an at-home kit ships to Cascades, 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 value: single tests
$49 & up
Best range: couples & full panels
$79 & 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 Loudoun 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.
45745 Nokes Boulevard - Suite 160, Sterling, VA 20166
CMS-certified lab Accredited · AABB
44055 Riverside Parkway, Suite 224, Lansdowne, VA 20176
CMS-certified lab Accredited · COLA
19455 Deerfield Avenue, Suite 202, Lansdowne, VA 20176
CMS-certified lab Accredited · College of American Pathologists
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Cascades. 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, 4,609 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Cascades. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 2,008 offer telehealth.
Said Sana
Family medicine · 20535 Earhart Place, Potomac Falls
Mariatu Koroma-Nelson, MD Telehealth
Family medicine · 20522 Falcons Landing Circle, Potomac Falls
Krysten Costley, MD
OB-GYN · 46179 Westlake Drive, Potomac Falls
Shabnam Sachdeva, MD Telehealth
Family medicine · 46169 Westlake Drive, Sterling
Nisha Chand, MD Telehealth
Internal medicine · 46169 Westlake Drive, Sterling
Joseph Lee, MD Telehealth
Family medicine · 46165 Westlake Drive, Sterling
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 Cascades, VA 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.
My Neighbor Pharmacy
1.1 mi
1.5 mi St Luke Pharmacy
1.6 miHarris Teeter Pharmacy
1.6 mi
1.8 mi Westwood Pharmacy-Loudoun
1.8 miShowing the 6 closest pharmacies to Cascades, VA.
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 Cascades, 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 $0 insured
Telehealth STI treatment and sexual-health care, delivered or 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 $39
Online STI treatment & DoxyPEP: same-day prescriptions 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 Loudoun County, the county that includes Cascades, compare with Virginia 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.
#101 of 133 Virginia counties for chlamydia, a higher rate than 24% of the state
| Infection | Loudoun County | Virginia | United States |
|---|---|---|---|
| Chlamydia | 206.3 900 cases ▼ 56% | 472.8 | 492.2 |
| Gonorrhea | 43.8 191 cases ▼ 72% | 158.3 | 179.5 |
| Syphilis (P&S) | 3 13 cases ▼ 72% | 10.7 | 15.8 |
| Syphilis (early) | 2.3 10 cases ▼ 76% | 9.5 | 16 |
| Syphilis (late/unknown) | 6.2 27 cases ▼ 61% | 15.8 | 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 Loudoun County, chlamydia has fallen from 210.2 to 206.3 per 100,000 (2%), gonorrhea has risen from 24.9 to 43.8 per 100,000 (76%), and P&S syphilis has risen from 2.6 to 3 per 100,000 (15%).
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 Loudoun County.
Local HIV snapshot
Loudoun County HIV care continuum (2023)
Loudoun County recorded 4.7 new HIV diagnoses per 100,000 (2023), against 11.8 statewide and 13.7 nationally. Among Loudoun County residents living with HIV, 73.6% are in care · 66.9% 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 Loudoun County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Water-level light off Broad Run and the weight of humidity in summer afternoons shape the rhythm of life here. Cascades draws people who build lives across decades, mortgages, school calendars, jobs that anchor them to place. That stability makes routine screening easy to overlook, yet young adults living and working throughout the community benefit from the same confidential testing that matters anywhere else. Regular checkups fit quietly into the ordinary care habits that keep people well.
Testing sites and clinics listed on this page operate with the understanding that screening is straightforward health maintenance, not crisis intervention. Whether someone is navigating early adulthood, managing a relationship transition, or simply staying current on wellness, the providers here treat each visit as private and clinical. No surprises, no judgment. Just the care that fits the actual lives residents are living.
Access to screening in and around Cascades means that someone living near Potomac Falls or working off VA 7 can schedule without disrupting their week. The confidentiality built into every visit protects what matters: the freedom to know your status without it rippling through the networks that make small communities work. That separation between your health and everyone else's knowledge of it is built into how testing operates here.
Getting there
At 7.35/20 on the EPA walkability index, day-to-day errands in Cascades 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 20165 snapshot
ZIP-level Census figures for the wider 20165 area around Cascades: a single ZIP can span several communities, so they describe the area, not Cascades alone.
Cascades sits in Loudoun County, ZIP 20165. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Cascades? 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 Loudoun County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Virginia 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 Cascades-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 Cascades 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 Virginia 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 Virginia, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Virginia 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 VirginiaSource: 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.
The closest is Quest Diagnostics (1.4 mi); 9 options are within 30 miles.
Public clinics are free; private labs ~$24–$139, at-home kits $49+.
Yes, Virginia Department of Health (5.8 mi) offers free testing, and public clinics serve the uninsured.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 206 cases per 100,000 residents (2023), below the Virginia average.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
In Virginia, people under 18 can consent to confidential STD testing and treatment on their own.
Lab results typically come back in 1–2 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.