Mendocino County has chlamydia rates about 38% lower than the US average. Testing is wise before starting a new relationship or as part of ongoing care in Willits, California. Testing options vary, from drop-in clinics to at-home kits that you can do on your schedule.
Available testing centers
7 testing options are listed for Willits, CA. The nearest, Mendocino Community Health Clinic, is about 0.4 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.
Mendocino Community Health Clinic in Willits runs on a sliding-scale fee and accepts Medicaid, Medicare, and most insurance, covering HIV, syphilis, gonorrhea, chlamydia, herpes, hepatitis C, and TB, with same-visit treatment for bacterial infections and an appointment required, and delivers all of it in Spanish.
Spanish at Mendocino Community Health Clinic is a staffed operational capacity: meaning clinical counseling, medication adherence education, PrEP initiation conversations, and STI treatment follow-up all happen directly in Spanish, without a relay layer between patient and provider.
When prevention requires a prescription, whether PrEP for ongoing HIV risk or PEP following exposure, the gap between need and medication is what produces transmission. Mendocino Community Health Clinic in Willits holds both prescribing and follow-up in-house, so neither requires a separate provider referral to activate.
Mendocino Community Health Clinic prescribes and manages hepatitis C treatment directly, direct-acting antivirals are initiated and monitored on-site, which means a confirmed hepatitis C diagnosis moves into an active treatment relationship at the same clinic rather than stalling at the antibody result.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Sep 2025 · Source: CDC NPIN + HRSA
A community safety-net rural health clinic in Willits. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Consolidated Tribal Health Project in Redwood Valley runs on appointments, so arrival is coordinated rather than a waiting-room gamble, and a single visit covers the standard panel, same-visit bacterial treatment, HPV and hepatitis A and B vaccines, with all services provided at no fee.
Consolidated Tribal Health Project tests for herpes alongside gonorrhea, chlamydia, syphilis, and HIV, so a single appointment can surface infections that a trimmed-down panel would leave undetected and unaddressed.
Substance-use treatment is available at Consolidated Tribal Health Project alongside STI care, which means a patient managing both doesn't need to coordinate between separate providers or suspend one course of care to pursue another.
Consolidated Tribal Health Project operates with sliding-scale fees that extend to zero: Medicaid, Medicare, and insurance are all accepted, and for those without coverage, the clinic's staffing and funding structure absorbs the cost so that testing, treatment, and vaccines are billed at nothing.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN + HRSA
A safety-net rural health clinic about 18 miles from Willits. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
North State Street in Ukiah earned its federally qualified health center designation by anchoring care for patients between providers, paying cash, or working without insurance. Sliding-scale fees tie directly to income, and STI screening (syphilis, gonorrhea, and chlamydia) is available without an appointment.
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 Willits, 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 value: single tests
$49 & 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 Mendocino 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.
1 Marcela Drive, Willits, CA 95490
CMS-certified lab Accredited · Joint Commission
275 Hospital Drive, Ukiah, CA 95482
CMS-certified lab Accredited · Joint Commission
555 South Dora Street, Suite B, Ukiah, CA 95482
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Willits. 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, 78 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Willits. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 6 offer telehealth.
John Hart, MD
Internal medicine · 1 Marcela Drive, Willits
Claudia Petruncio, DO
Internal medicine · 3 Marcela Drive, Willits
Kimberly Faucher, MD
OB-GYN · 1155 South Main Street, Willits
Miriam Harris, MD
Family medicine · 1245 South Main Street, Willits
Donna Smith, MD
OB-GYN · 45 Hazel Street, Willits
Robert Gitlin, DO Telehealth
Family medicine · 8501 West Road, Redwood Valley
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 Willits, CA 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.
0.1 mi 
1.0 mi Adventist Health Howard Pharmacy
1.2 miKure Wellness
17 miRaleys
18 miShowing the 5 closest pharmacies to Willits, CA.
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 Willits, 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.
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 $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
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 Mendocino County, the county that includes Willits, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~20% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#35 of 58 California counties for chlamydia, a higher rate than 40% of the state
| Infection | Mendocino County | California | United States |
|---|---|---|---|
| Chlamydia | 306.4 273 cases ▼ 38% | 491.1 | 492.2 |
| Gonorrhea | 67.3 60 cases ▼ 65% | 190.2 | 179.5 |
| Syphilis (P&S) | 30.3 27 cases ▲ 86% | 16.3 | 15.8 |
| Syphilis (early) | 13.5 12 cases ▼ 29% | 19.1 | 16 |
| Syphilis (late/unknown) | 19.1 17 cases ▼ 59% | 46.7 | 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 Mendocino County, chlamydia has fallen from 411.6 to 306.4 per 100,000 (26%), gonorrhea has fallen from 163.8 to 67.3 per 100,000 (59%), and P&S syphilis has risen from 7.6 to 30.3 per 100,000 (299%).
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 Mendocino County.
Local HIV snapshot
Mendocino County HIV care continuum (2020)
Mendocino County recorded 6.5 new HIV diagnoses per 100,000 (2020), against 14.9 statewide and 13.7 nationally. Among Mendocino County residents living with HIV, 84% are in care · 71.6% 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 Mendocino County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Muir and Fair Oaks hold much of Willits' younger adult population, people piecing together early careers in a town where fewer than four in ten residents own their homes and typical rent runs just under a thousand dollars a month. That financial tightness, combined with a labor-force participation rate that leaves a notable share of working-age adults outside steady employment, means discretionary spending on health appointments often gets weighed against rent and groceries before it happens at all. With most households larger than the national average and well under a third earning above six figures, the cost structure of testing genuinely matters here. The options listed on this page include sliding-scale and low- or no-cost visits, which removes the calculation that otherwise delays care for people in their late teens and twenties.
The years when STI transmission tends to peak and when regular screening makes the clearest difference to long-term health. Several of the nearest options listed here require that drive. Knowing that in advance, rather than discovering it when you're already trying to book, is what actually shapes whether an appointment gets made.
Getting there
Willits scores 10.63/20 on the EPA walkability index, so many trips are walkable or a short ride, though a car still gives you the widest choice of testing centers.
Source: EPA National Walkability Index 2021.
ZIP 95490 snapshot
ZIP-level Census figures for the wider 95490 area around Willits: a single ZIP can span several communities, so they describe the area, not Willits alone.
Willits sits in Mendocino County, ZIP 95490. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Willits? 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 Mendocino County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under California 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 Willits-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 Willits 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 California 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 California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
California 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 CaliforniaSource: 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+.
Public clinics serve people without insurance, often on a sliding scale.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Mendocino County reported ~306 chlamydia cases per 100,000 in 2023, below the California average.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
At-home kits mail to 95490: self-collect, send to the lab, results in ~2–5 days.
Public and community clinics test everyone; several provide LGBTQ-affirming services.
No, most STIs have no visible signs, so the only way to know is to test.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.