In Grant County, reported gonorrhea is 44% lower than the US average. If you're wondering about STI testing options in Mattawa, Washington, whether you have symptoms or just want peace of mind, consider that public clinics keep costs down, but private labs prioritize speed, and at-home kits trade a clinic visit for convenience. Find your options below.
Available testing centers
9 testing options are listed for Mattawa, WA. The nearest, Mattawa Community Medical Clinic, is about 0.1 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.
Mattawa Community Medical Clinic covers gonorrhea, chlamydia, syphilis, HIV, and hepatitis A, B, and C, treating bacterial infections the same day on a sliding-scale fee that applies to everyone; appointments are required, and care is delivered in Spanish.
For anyone whose primary language is Spanish (whether navigating treatment decisions, understanding a diagnosis, or discussing follow-up care) Mattawa Community Medical Clinic conducts care in Spanish directly, not through a workaround. That standing capability shapes every clinical conversation from intake through treatment.
Anyone without a regular primary care provider, someone who needs a single appointment to cover both sexual health and liver-disease screening, gets hepatitis A, B, and C testing here alongside the standard bacterial and HIV panel. The clinic also carries hepatitis A and B vaccines, so gaps in immunity can be closed at the same visit.
Languages
English, Spanish
Tests offered
Serves
Care services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN + HRSA
Columbia Basin Health Association in Mattawa tests for gonorrhea, syphilis, chlamydia, herpes, and HIV on a sliding-scale fee, with same-visit treatment for bacterial infections available by appointment, and every service carries no charge regardless of ability to pay.
Columbia Basin Health Association absorbs all service costs operationally, no copay, no billing queue, no means-test form at the window. Testing, STI treatment, and vaccines like HPV, hepatitis A and B, and mpox are staffed and dispensed the same way for every patient who walks through the door.
Spanish-language care at Columbia Basin Health Association is staffed directly: clinicians and educators conduct counseling, STI prevention education, and partner notification conversations in Spanish as part of the standard clinical workflow, not routed through a secondary process.
Columbia Basin Health Association tests for herpes alongside gonorrhea, syphilis, chlamydia, and HIV. Meaning a single appointment can account for an infection that a shorter panel would leave undetected and unaddressed.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN
MCMC Wic & PSS, serving Mattawa, earned its federally qualified standing by tying STI screening fees directly to each patient's income. Walk-in STI care covers syphilis, gonorrhea, and chlamydia, with sliding-scale pricing ensuring the cost adjusts to what you actually earn.
Tests offered
Fees & payment
A community safety-net federally qualified health center in Mattawa. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Fees & payment
MCMC - Behavioral Health, serving Mattawa under federally qualified health center standing, ties sliding-scale fees directly to each patient's income: meaning syphilis, gonorrhea, and chlamydia screening stays within financial reach no matter where someone falls on the pay scale.
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 less than a mile away; if you'd rather skip the trip, an at-home kit ships to Mattawa, 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 Grant 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.
605 South Coolidge Street, Moses Lake, WA 98837
CMS-certified lab
827 East Colonial Avenue, Moses Lake, WA 98837
CMS-certified lab
Showing the nearest 2 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Mattawa. 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, 30 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Mattawa. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1 offer telehealth.
Hung Miu, MD
OB-GYN · 601 Government Way, Mattawa
Daniel Dunbar, MD
Internal medicine · 617 Scoon Road, Sunnyside
Blake Bond, MD
Family medicine · 2303 Reith Way, Sunnyside
Theresa Whitchurch, MD
Family medicine · 2680 Yakima Valley Highway, Sunnyside
Eve Barker, MD
Family medicine · 1013 East Edison Avenue, Sunnyside
Cariane Morales Matos, MD
Infectious disease · 1016 Tacoma Avenue, Sunnyside
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 Mattawa, 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.
Tieton Village Drugs
27 miYakima Valley Farm Workers Clinic
28 miYakima Neighborhood Health Services
28 mi
29 mi 
29 mi 
29 mi Showing the 6 closest pharmacies to Mattawa, 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 Mattawa, 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
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
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 Grant County, the county that includes Mattawa, compare with Washington and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~38% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#7 of 39 Washington counties for chlamydia, a higher rate than 82% of the state
| Infection | Grant County | Washington | United States |
|---|---|---|---|
| Chlamydia | 456.8 469 cases ▲ 29% | 354.4 | 492.2 |
| Gonorrhea | 101.3 104 cases ▼ 22% | 129.6 | 179.5 |
| Syphilis (P&S) | 21.4 22 cases ≈ the state average | 21.3 | 15.8 |
| Syphilis (early) | 14.6 15 cases ▲ 17% | 12.5 | 16 |
| Syphilis (late/unknown) | 22.4 23 cases ▼ 2% | 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 Grant County, chlamydia has risen from 305.7 to 456.8 per 100,000 (49%), gonorrhea has fallen from 115 to 101.3 per 100,000 (12%), and P&S syphilis has risen from 8.1 to 21.4 per 100,000 (164%).
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 Grant County.
Local HIV snapshot
Grant County HIV care continuum (2022)
Grant County recorded 7.4 new HIV diagnoses per 100,000 (2022), against 6.3 statewide and 13.7 nationally. Among Grant County residents living with HIV, 75.7% are in care · 65.7% 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 Grant County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Hund Memorial Park's mix of owner-occupied homes and rental households tells you something real about how Mattawa works day to day: most residents have planted roots here, but a meaningful share are renting at rates that, while modest by coastal-city standards, still claim a sizeable slice of a monthly budget. Especially when unemployment runs noticeably higher than national norms. For younger adults in their late teens and twenties, that combination of tight margins and a labor market where steady hours aren't guaranteed can make a clinic visit feel like a scheduling puzzle rather than a given. Getting around sharpens that puzzle.
With just over half the working-age population in the labor force, the people most likely to be in those prime years for new relationships often have irregular schedules that make mid-week appointments hard to commit to in advance. The options on this page (varied in hours, cost, and location) exist precisely because one format doesn't serve everyone equally in a community shaped like Mattawa. Checking distance and same-day availability before you go is the small step that turns proximity into something actually useful.
Getting there
At 6.83/20 on the EPA walkability index, day-to-day errands in Mattawa 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 99349 snapshot
ZIP-level Census figures for the wider 99349 area around Mattawa: a single ZIP can span several communities, so they describe the area, not Mattawa alone.
Mattawa sits in Grant County, ZIP 99349. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Mattawa? 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 Grant 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 Mattawa-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 Mattawa 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.
There are 5 options within a 30-mile drive.
Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.
Yes, free HIV testing is available at public clinics in the area.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Grant County reported ~457 chlamydia cases per 100,000 in 2023, above the Washington average.
In Washington, people under 18 can consent to confidential STD testing and treatment on their own.
It's a common STI symptom; test for chlamydia and gonorrhea and have a provider check you.
Use condoms, test regularly, get the HPV and hep B vaccines, and ask about PrEP for HIV.
No real difference for testing, "STI" is just the current term for what used to be called "STD."
Yes, syphilis is cured with antibiotics (usually penicillin), and earlier treatment prevents long-term damage.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.