In Benton County, Washington, syphilis is reported about 27% higher than the US average. If you're starting a new relationship or managing ongoing care in Prosser, Washington, you can choose between visiting a clinic where a provider can answer questions and start treatment, or an at-home kit that lets you collect a sample on your own schedule and mail it in. See the options listed below.
Available testing centers
9 testing options are listed for Prosser, WA. The nearest, Yakima Valley Farm Workers Clinic, is about 0.2 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.
Yakima Valley Farm Workers Clinic in Prosser runs by appointment, so scheduling ahead secures same-visit bacterial treatment alongside the full panel (HIV, syphilis, gonorrhea, chlamydia, herpes, hepatitis A, B, and C, and TB) on a sliding-scale fee open to everyone.
Plenty of clinics handle non-English speakers through a phone line passed across a desk. At Yakima Valley Farm Workers Clinic in Prosser, Spanish is a native language of care, spoken directly in the room, and interpretation is available for other languages without routing the conversation through a third layer.
The standard four-infection screen leaves herpes and all three hepatitis strains undetected unless a patient specifically requests them elsewhere. Yakima Valley Farm Workers Clinic in Prosser tests for herpes, hepatitis A, hepatitis B, and hepatitis C as part of its panel, and carries vaccines for hepatitis A, hepatitis B, and HPV on-site.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN + HRSA
Planned Parenthood of Greater Washington and North Idaho in Sunnyside runs by appointment and covers gonorrhea, chlamydia, syphilis, herpes, and rapid HIV testing on a sliding-scale fee, with same-visit treatment for bacterial infections, HPV vaccine, and PrEP counseling in one visit.
Clinics without on-staff language capacity hand off to workarounds that flatten nuance in exactly the moments nuance matters. At Planned Parenthood in Sunnyside, Spanish-speaking staff deliver care directly, and interpretation services extend that access across additional non-English languages, so the clinical conversation stays intact.
Without Title X standing, a clinic can't guarantee legally confidential services to minors. Meaning a young person may face disclosure risks or get redirected elsewhere for family planning. Planned Parenthood of Greater Washington and North Idaho holds Title X designation, which means those confidential protections are built into the care it provides in Sunnyside.
DoxyPEP, doxycycline taken after potential bacterial STI exposure, sits alongside both PrEP and PEP at this clinic, giving providers three distinct pharmacological prevention tools to work with. That range means a prevention plan can be matched to actual exposure patterns rather than defaulting to a single-drug framework.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Oct 2025 · Source: CDC NPIN + HRSA
Immediate Care in Sunnyside welcomes walk-ins, meaning no appointment stands between you and same-day STI screening. Federal qualification drives a sliding-scale fee tied to income, and a single visit can cover syphilis, gonorrhea, and chlamydia testing in one stop.
Tests offered
Fees & payment
Yakima Neighborhood Health Services in Sunnyside tests for HIV, gonorrhea, chlamydia, syphilis, and hepatitis A, B, and C, treating bacterial infections the same visit on a sliding-scale fee open to everyone. Walk-ins welcome, with care delivered in Spanish.
Yakima Neighborhood Health Services conducts STI care in Spanish as a standing clinical capability, not routed through a secondary staff member. For someone without a regular provider who needs to discuss symptoms, understand treatment, and leave with a prescription, that fluency is what makes a complete visit possible in one stop.
Skipping hepatitis screening means a separate appointment at a separate facility, a gap where an active infection goes unmanaged and treatment is delayed. Yakima Neighborhood Health Services tests for hepatitis A, B, and C alongside the standard bacterial and HIV panel, so the full picture is in hand before you leave.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jun 2026 · Source: CDC NPIN + HRSA
Providence in West Richland screens for gonorrhea, chlamydia, syphilis, and HIV on a fee-based model with insurance accepted, no appointment required. HPV, hepatitis A, and hepatitis B vaccines are available alongside STI treatment and prevention counseling.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Aug 2025 · 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 less than a mile away; if you'd rather skip the trip, an at-home kit ships to Prosser, 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 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 Benton 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.
200 Prosser Health Drive, Prosser, WA 99350
CMS-certified lab
200 Prosser Health Drive, Prosser, WA 99350
CMS-certified lab
221 Wellsian Way, Richland, WA 99352
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Prosser. 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, 219 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Prosser. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 45 offer telehealth.
Heidi Weaver, MD
OB-GYN · 200 Prosser Health Drive, Prosser
Edward Lane, MD
Family medicine · 820 Memorial Street, Prosser
Jayme Thompson, DO
Family medicine · 820 Memorial Street, Prosser
Sirshendu Banerjee, MD
Internal medicine · 723 Memorial Street, Prosser
Kristin Yeoman, MD
Internal medicine · 713 Memorial Street, Prosser
Brian Sollers, DO
OB-GYN · 336 Chardonnay Avenue, Prosser
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 Prosser, WA 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.
Prosser Southgate Pharmacy
1.1 mi
7.0 mi Ash Street Pharmacy
7.3 miYakima Valley Farm Workers Clinic
8.5 miDoctor's Pharmacy
13 miSunnyside Pharmacy
13 miShowing the 6 closest pharmacies to Prosser, WA.
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 Prosser, 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
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
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
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 Benton County, the county that includes Prosser, compare with Washington and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~29% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#5 of 39 Washington counties for chlamydia, a higher rate than 87% of the state
| Infection | Benton County | Washington | United States |
|---|---|---|---|
| Chlamydia | 472.5 1,017 cases ▲ 33% | 354.4 | 492.2 |
| Gonorrhea | 114.3 246 cases ▼ 12% | 129.6 | 179.5 |
| Syphilis (P&S) | 20 43 cases ▼ 6% | 21.3 | 15.8 |
| Syphilis (early) | 9.8 21 cases ▼ 22% | 12.5 | 16 |
| Syphilis (late/unknown) | 28.3 61 cases ▲ 24% | 22.9 | 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 Benton County, chlamydia has fallen from 474.7 to 472.5 per 100,000 (0%), gonorrhea has fallen from 181.3 to 114.3 per 100,000 (37%), and P&S syphilis has risen from 15 to 20 per 100,000 (33%).
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 Benton County.
Local HIV snapshot
Benton County HIV care continuum (2023)
Benton County recorded 5.1 new HIV diagnoses per 100,000 (2023), against 6.3 statewide and 13.7 nationally. Among Benton County residents living with HIV, 85.9% are in care · 78.8% 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 Benton County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Prosser's growing wine industry and agricultural roots mean many young adults settle here for work (vineyard jobs, packing facilities, seasonal labor that stretches year-round) and staying put long enough to build a life requires knowing your health status without fanfare. Routine STI screening fits into that practical calculus: you get tested, results stay confidential, and you move forward. The modest cost of living that makes Prosser attractive to people in their twenties and thirties also means health services don't strain a tight budget, and clinics listed on this page understand the rhythms of this community. Harvest seasons, shift work, the reality that people need appointments that don't demand a day off.
Testing in and around Prosser happens at clinics accustomed to serving residents who value straightforward care and discretion. Whether you're new to the area or rooted here, the providers available understand that sexual health screening is routine, not remarkable, and that confidentiality isn't theater. It's how people actually live in a town where you'll run into someone at City Park or Downtown.
Getting there
At 8/20 on the EPA walkability index, day-to-day errands in Prosser 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 99350 snapshot
ZIP-level Census figures for the wider 99350 area around Prosser: a single ZIP can span several communities, so they describe the area, not Prosser alone.
Prosser sits in Benton County, ZIP 99350. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Prosser? 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 Benton County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Washington 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 Prosser-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 Prosser 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 Washington 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 Washington, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Washington 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 WashingtonSource: 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 Yakima Valley Farm Workers Clinic (0.2 mi); 9 options are within 30 miles.
Medicaid generally covers STD testing, and public clinics test for free regardless of coverage.
Public clinics nearby offer free HIV testing.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 473 cases per 100,000 residents (2023), above the Washington average.
In Washington, people under 18 can consent to confidential STD testing and treatment on their own.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
Yes, most chlamydia infections cause no symptoms, so screening is the only reliable way to catch it.
You self-collect a sample at home, mail it in, and view results online, no clinic visit needed.
Start treatment, tell recent partners so they can test, avoid sex until cleared, and retest if advised, most STIs resolve with care.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.