71% fewer cases of chlamydia get reported in Mariposa County than the national rate. Whether you're looking for one-time screening or regular check-ups in Hornitos, California, know that community clinics usually offer low-cost or free options, but private labs often provide faster results and more scheduling flexibility. We list your choices below.
Available testing centers
7 testing options are listed for Hornitos, CA. The nearest, Don Michael Endress MD, is about 13.2 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.
A community safety-net rural health clinic about 13 miles from Hornitos. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Community Health Centers of America, in Mariposa, ties its STI screening fees directly to each patient's income. A federal sliding-scale structure that keeps no one from the door. Walk-ins can access syphilis, gonorrhea, and chlamydia screening without an appointment.
Tests offered
Fees & payment
Mariposa County Health Department brings the infrastructure of a public health agency to STI care in Mariposa: gonorrhea, chlamydia, syphilis, and HIV testing with same-visit bacterial treatment, sliding-scale fees, and Hepatitis A and B vaccines, by appointment.
For someone navigating STI testing, treatment decisions, and prevention counseling without a regular provider, having clinical staff who work in Spanish means the entire visit (history, diagnosis, treatment plan) runs in the same language throughout. At Mariposa County Health Department, that's the standing service, not an accommodation arranged on request.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN + HRSA
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 13 miles away; if you'd rather skip the trip, an at-home kit ships to Hornitos, 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 Mariposa 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.
5189 Hospital Road, Mariposa, CA 95338
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Hornitos. 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, 161 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Hornitos. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 38 offer telehealth.
Tahir Yaqub, MD
Family medicine · 5320 Hwy 49 North, Mariposa
Ravinder Kadevari, MD
Family medicine · 5204 Hospital Road, Mariposa
Zohreh Saadabadi, MD
Family medicine · 5189 Hospital Road, Mariposa
Joanna Eveland, MD
Family medicine · 5189 Hospital Road, Mariposa
Abhilasha Sharma, MD
Family medicine · 9235 East Broadway Street, Planada
Roger Quach, DO Telehealth
Family medicine · 315 Mercy Avenue, Merced
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 Hornitos, 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.
15 mi Mother Lode Drug Company
15 miPioneer Market
15 miSan Joaquin Drug
15 miMariposa Drug
15 miGVHC Pharmacy
17 miShowing the 6 closest pharmacies to Hornitos, 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 Hornitos, 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
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
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 Mariposa County, the county that includes Hornitos, compare with California and U.S. averages, based on the most recent 2023 surveillance data.
#54 of 58 California counties for chlamydia, a higher rate than 7% of the state
| Infection | Mariposa County | California | United States |
|---|---|---|---|
| Chlamydia | 141.9 24 cases ▼ 71% | 491.1 | 492.2 |
| Gonorrhea | 23.6 4 cases ▼ 88% | 190.2 | 179.5 |
| Syphilis (P&S) | 11.8 2 cases ▼ 28% | 16.3 | 15.8 |
| Syphilis (early) | — no data | 19.1 | 16 |
| Syphilis (late/unknown) | 41.4 7 cases ▼ 11% | 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 Mariposa County, chlamydia has fallen from 151.8 to 141.9 per 100,000 (7%), gonorrhea has fallen from 52.5 to 23.6 per 100,000 (55%), and P&S syphilis has risen from 5.8 to 11.8 per 100,000 (103%).
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 Mariposa County.
Local HIV snapshot
Mariposa County HIV care continuum (2023)
Mariposa County recorded 0 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Mariposa County residents living with HIV, 86.7% are in care · 66.7% 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 Mariposa County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Hornitos Park anchors a town where nearly everyone owns their home outright and has for years, a stability that shapes daily life in ways both practical and invisible. With married adults making up the overwhelming majority of households and average household sizes running lean, this is a community of established pairs and settled routines, not the churning of lease renewals or roommate arrangements. Yet younger adults do live here, people building relationships in the shadow of Quartz Mountain and Cemetery Hill, and for them the same rooted, low-turnover character that defines the town can make sexual health feel like someone else's agenda. Something belonging to a more transient, urban life rather than their own.
The labor picture compounds this. With fewer than half of residents actively in the workforce, days here don't follow the nine-to-five rhythms that clinic schedules are built around, but they don't offer the flexible midweek freedom that might make a spontaneous appointment easy either. What actually changes the calculus in Hornitos is the drive. That's the honest shape of access from here, not impossible, but deliberate enough that knowing the clinic's hours in advance is the whole ballgame.
Getting there
At 5.12/20 on the EPA walkability index, day-to-day errands in Hornitos 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 95338 snapshot
ZIP-level Census figures for the wider 95338 area around Hornitos: a single ZIP can span several communities, so they describe the area, not Hornitos alone.
Hornitos sits in Mariposa County, ZIP 95338. Local context that shapes where residents test:
Local landmarks
Nearby cities & towns
Just outside Hornitos? 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 Mariposa 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 Hornitos-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 Hornitos 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.
7 testing options are within 30 miles of Hornitos, CA.
Private labs ~$24–$139, at-home kits $49+.
Yes, community and public clinics test the uninsured, with sliding-scale fees.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 142 cases per 100,000 residents (2023), below the California average.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
It's curable with antibiotics; catching it early avoids serious complications.
A retest around 3 months after treatment is recommended for chlamydia and gonorrhea.
Most STIs have no symptoms, so testing is the only way to know your status, get early treatment, and avoid passing one on.
Yes, rectal symptoms can come from chlamydia or gonorrhea; ask for a rectal swab if you had anal exposure.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.