Reported chlamydia in Napa County runs about 48% lower than the US average. Whether you need testing after a possible exposure or as part of routine care, you'll find local clinics and at-home kits for STI testing in Napa County, California. Some clinics take walk-ins for same-day testing, while labs and at-home kits let you plan around your own time — see your options below.
Available testing centers
11 testing options are listed for Napa, CA. The nearest, OLE Health - South Napa Campus, is about 1.5 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.
OLE Health - South Napa Campus, in Napa, runs its STI screening on a sliding-scale fee structure tied to income. No one is turned away for inability to pay. As a federally qualified health center, it offers testing for syphilis, gonorrhea, and chlamydia without an appointment required.
Tests offered
Fees & payment
OLE Health – North Napa Campus, in Napa, ties STI screening costs directly to what patients actually earn. Federal health center funding means no one is turned away for inability to pay. Walk-ins are welcome for sliding-scale syphilis, gonorrhea, and chlamydia screening.
Tests offered
Fees & payment
Planned Parenthood Northern California in Napa tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis B and C on a sliding-scale fee that applies to everyone, with same-visit treatment for bacterial infections and no appointment required.
For anyone navigating STI care, medication decisions, or prevention counseling without strong English fluency, Planned Parenthood Northern California conducts visits in Spanish and connects non-English speakers with interpretation services, so clinical conversations happen with full comprehension, not guesswork.
As a Title X clinic, Planned Parenthood Northern California is the right fit for minors who need STI testing or family planning services without a parent's involvement. Title X legally protects the confidentiality of those services, a protection that doesn't exist at most general medical offices.
Planned Parenthood Northern California prescribes both PrEP, the daily medication that prevents HIV acquisition, and PEP, with clinical staff handling the initial evaluation, prescription, and ongoing monitoring in-house rather than coordinating across separate providers.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jul 2025 · Source: CDC NPIN
Napa Valley Corporate Drive, in Napa, carries federal qualification that locks in income-based sliding-scale fees for every patient who walks through the door. No appointment is needed to be screened for syphilis, gonorrhea, and chlamydia, making cost a smaller barrier than it might otherwise be.
Tests offered
Fees & payment
OLE Health American Canyon draws its sliding-scale fees from federal community health center funding, meaning the cost of syphilis, gonorrhea, and chlamydia screening adjusts to each patient's income. No appointment is required to access that income-based pricing.
Tests offered
Fees & payment
Sonoma Valley Community Health Center in Sonoma runs appointments for gonorrhea, chlamydia, syphilis, and herpes testing, treating confirmed bacterial infections the same visit on a sliding-scale fee accepted alongside Medicaid, Medicare, and private insurance. With full services delivered in Spanish.
Beyond the core four, Sonoma Valley Community Health Center orders herpes testing through the same appointment. A serology draw that detects HSV antibodies and returns results through the clinic's established follow-up workflow, without scheduling a separate specialist encounter.
The clinic staffs substance-use treatment directly within its care model, meaning a clinician managing an STI case can coordinate with the same team handling a patient's substance-use program. Shared records, shared appointments, no handoff to an outside program.
Spanish-language services at Sonoma Valley Community Health Center are delivered by staff clinicians, not routed through an external service: meaning diagnoses are explained, treatment plans are reviewed, and medication adherence counseling is conducted directly in Spanish by the person prescribing the care.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN + HRSA
La Clinica North Vallejo, in Vallejo, carries federal FQHC designation, which means its STI screening fees slide with your income. No fixed price locks anyone out. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia testing, making it a practical option whether you're uninsured, between providers, or simply paying out of pocket.
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 2 miles away; if you'd rather skip the trip, an at-home kit ships to Napa, 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 for simplicity & support
$89 & 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 Napa 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.
1000 Trancas Street, Napa, CA 94558
CMS-certified lab Accredited · Joint Commission
529 Soscol Avenue, Napa, CA 94559
CMS-certified lab
1700 Second Street, Suite 220, Napa, CA 94559
CMS-certified lab
3443 Villa Lane, Suite 10, Napa, CA 94558
CMS-certified lab
433 Soscol Ave Suite A110, Napa, CA 94559
CMS-certified lab Accredited · COLA
Showing the nearest 5 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Napa. 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, 1,859 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Napa. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 751 offer telehealth.
David Jue, MD Telehealth
Internal medicine · 3010 Beard Road, Napa
Deborah Geary, MD
OB-GYN · 1675 Permanente Way, Napa
Rebecca Levy-Gantt, DO
OB-GYN · 3030 Beard Road, Napa
Kenneth Ross, MD Telehealth
Family medicine · 1001 Professional Drive, Napa
Jasmine Win, MD Telehealth
Internal medicine · 3285 Claremont Way, Napa
Noel Serrano, MD Telehealth
Internal medicine · 3275 Villa Lane, Napa
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 Napa, 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.
Savon Drugs
0.6 mi
1.2 mi 
1.2 mi 
1.3 mi Showing the 4 closest pharmacies to Napa, 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 Napa, 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
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
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 Napa County, the county that includes Napa, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~25% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#43 of 58 California counties for chlamydia, a higher rate than 26% of the state
| Infection | Napa County | California | United States |
|---|---|---|---|
| Chlamydia | 256.7 342 cases ▼ 48% | 491.1 | 492.2 |
| Gonorrhea | 91.6 122 cases ▼ 52% | 190.2 | 179.5 |
| Syphilis (P&S) | 17.3 23 cases ▲ 6% | 16.3 | 15.8 |
| Syphilis (early) | 9.8 13 cases ▼ 49% | 19.1 | 16 |
| Syphilis (late/unknown) | 29.3 39 cases ▼ 37% | 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 Napa County, chlamydia has fallen from 310.8 to 256.7 per 100,000 (17%), gonorrhea has risen from 81.9 to 91.6 per 100,000 (12%), and P&S syphilis has risen from 9.4 to 17.3 per 100,000 (84%).
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 Napa County.
Local HIV snapshot
Napa County HIV care continuum (2023)
Napa County recorded 8.6 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Napa County residents living with HIV, 82.5% are in care · 75.8% 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 Napa County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
CA 29 threads north through Napa past the Noyes Mansion and out toward the vineyards, and along that corridor the city's household character becomes legible: most adults here are married, families run large by California standards, and health decisions, including when and whether to get screened, tend to get weighed against a full household calendar rather than a solo one. That household density matters when you consider the share of residents in their late teens and twenties, a group whose years of forming new relationships coincide with the periods when STIs spread most readily and go most often undetected. With nearly six in ten residents owning their homes and typical rents holding near the higher end of what many working families can stretch to, discretionary time and money both face real pressure.
A workforce participation rate reflecting most working-age adults holding jobs means clinic hours that don't overlap with a standard workday can quietly determine whether a test gets scheduled or quietly deferred. Napa County's STI figures carry their own weight, and for someone settled here, whether near Alston Park or anywhere along the Saint Helena Highway corridor, staying current with screening is simply what keeping pace with those numbers looks like from the inside.
Getting there
At 8.16/20 on the EPA walkability index, day-to-day errands in Napa 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 94558 snapshot
ZIP-level Census figures for the wider 94558 area around Napa: a single ZIP can span several communities, so they describe the area, not Napa alone.
Napa sits in Napa County, ZIP 94558. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Napa? 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 Napa 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 Napa-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 Napa 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 11 options within a 30-mile drive.
Usually yes, it can be billed to insurance, or paid out of pocket at a flat rate.
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.
Napa County reported ~257 chlamydia cases per 100,000 in 2023, below the California average.
At-home kits mail to 94558: self-collect, send to the lab, results in ~2–5 days.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
Most results are ready in about 1–2 days.
Go to an ER or call RAINN (800-656-4673); they provide testing, PEP, and support right away.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.