Chlamydia infections in Napa County are about 48% below the US average. Whether you're in American Canyon, California for a one-time concern or regular check-ups, weigh your options: community clinics may have low or no cost, while private labs may offer faster results and more flexible scheduling. Browse your choices below.
Available testing centers
9 testing options are listed for American Canyon, CA. The nearest, OLE Health American Canyon, is about 0.7 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 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
La Clinica Vallejo Great Beginnings, in Vallejo, earns its federally qualified status by tying STI screening costs directly to income: meaning syphilis, gonorrhea, and chlamydia testing is available on a sliding-scale fee regardless of what patients can pay.
Tests offered
Fees & payment
A safety-net federally qualified health center about 4 miles from American Canyon. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Fees & payment
La Clinica North Vallejo Support Services, in Vallejo, earned its federally qualified health center designation by tying fees directly to patient income: meaning syphilis, gonorrhea, and chlamydia screening stays within reach regardless of what you earn or whether you carry insurance.
Tests offered
Fees & payment
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
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 American Canyon, 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.
1030 Main Street, Suite 200, Saint Helena, CA 94574
CMS-certified lab
1000 Trancas Street, Napa, CA 94558
CMS-certified lab Accredited · Joint Commission
433 Soscol Ave Suite A110, Napa, CA 94559
CMS-certified lab Accredited · COLA
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near American Canyon. 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, 3,151 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of American Canyon. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1,352 offer telehealth.
Renee Miranda, MD
Family medicine · 416 Napa Junction Road, American Canyon
Estelita Carandang, MD Telehealth
Internal medicine · 1460 North Camino Alto, Vallejo
Melissa Belec, DO
Family medicine · 210 Hospital Drive, Vallejo
Yasmin Crespo-Mejias, MD
Family medicine · 220 Hospital Drive, Vallejo
Ella Gupta, DO Telehealth
Internal medicine · 100 Hospital Drive, Vallejo
Emily Nguyen, DO Telehealth
Internal medicine · 300 Hospital Drive, Vallejo
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 American Canyon, 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.
0.4 mi 
1.0 mi 
1.1 mi Showing the 3 closest pharmacies to American Canyon, 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 American Canyon, 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
$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 $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 American Canyon, compare with California 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.
#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 northbound out of American Canyon runs straight toward the clinics listed on this page, and depending on where that drive lands you, it can take anywhere from a few minutes to a solid half hour each way. That's a real calculation for a city where two in three residents are in the workforce and the household tends to be a full one: the average home here holds more than four people, and nearly half of adults are married, which means schedules stack and overlap.
Those household realities matter for younger adults in their late teens and twenties, a group that sees the sharpest rates of chlamydia and gonorrhea regardless of geography. In Cimarron Hills and Country Club Crest alike, the pattern is the same: a busy shared home, a job that claims most of the week, and a clinic that requires a deliberate trip rather than a casual detour off Lewis Brown Road. Most households here own their homes, but the ones that rent are doing so at rents that leave little cushion for costs that feel optional, which is exactly how routine screening can get deferred.
The options listed on this page include several with sliding-scale or no-cost visits, which removes the financial calculation from the equation. For a married couple in a four-person household, or a young adult still sorting out coverage, that matters more than it might somewhere else.
Getting there
At 9.59/20 on the EPA walkability index, day-to-day errands in American Canyon 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 94503 snapshot
ZIP-level Census figures for the wider 94503 area around American Canyon: a single ZIP can span several communities, so they describe the area, not American Canyon alone.
American Canyon sits in Napa County, ZIP 94503. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside American Canyon? 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 an American Canyon-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 American Canyon 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 9 options within a 30-mile drive.
Usually yes, it can be billed to insurance, or paid out of pocket at a flat rate.
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.
Napa County reported ~257 chlamydia cases per 100,000 in 2023, below the California average.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
Pregnancy screening is standard; ask about an early-pregnancy STI panel.
Clinics give immediate care and treatment; home kits win on convenience and discretion. Either works.
Little prep is needed, bring an ID and insurance if you have it, and note your exposure dates and any symptoms; for a urine test, avoid peeing for about an hour beforehand.
Telling recent partners lets them test and treat; many health departments offer confidential partner-notification help.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.