STD Testing in Ontario, CA: Free, Same-Day & Confidential
San Bernardino County reports about 14 syphilis cases per 100,000 residents, near the US average. Whether you need testing after a possible exposure or as part of routine care in Ontario, California, you can visit a clinic to get provider support and start treatment, or choose an at-home kit to collect a sample on your own schedule and mail it in. Below are your options.
12 testing options are listed for Ontario, CA. The nearest, Unicare Community Health Center - Ontario 1151, is about 1.6 miles away. Compare community and public clinics, private labs, and at-home kits below.
How to read these listings
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.
Premium Partner
Quest Diagnostics
Most popular Results in 1–2 days
3.7(67)?
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EasySTD5
Rated 3.7 out of 5 from 67 reviews
Address
5562 Philadelphia Street, Chino, CA 91710 4.4 miles away
Today's offer: $10 off any test panel, applied automatically at checkout.
Community health center 1.6 miles
Unicare Community Health Center - Ontario 1151
3.4(22)?
Review sources
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EasySTD2
Rated 3.4 out of 5 from 22 reviews
Unicare Community Health Center - Ontario 1151, in Ontario, earned its federally qualified designation by anchoring STI care to income-based fees: meaning syphilis, gonorrhea, and chlamydia screening adjusts to what each patient can actually pay, no appointment needed to get started.
Parktree Community Health Center in Ontario tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee with no-fee options available; appointments are required, and bacterial infections can be treated the same visit.
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Every Service Carries a Zero-Dollar Bill
When cost stands between a person and treatment, an untreated infection compounds. Into transmission risk, into chronic illness, into a more complex case down the line. Parktree Community Health Center eliminates that gap entirely: testing, treatment, vaccines, and prevention services all carry no fee for those who qualify, so nothing at this clinic goes unaddressed because of what it costs.
Spanish Speakers Get Full Clinical Conversation
Parktree Community Health Center in Ontario delivers care in Spanish and through interpretation services for other languages: meaning medication instructions, counseling, and follow-up planning are communicated directly, not approximated. For anyone navigating PrEP adherence or a new diagnosis without a regular English-speaking provider, that standing language capacity is the difference between a plan that sticks and one that gets lost in translation.
PrEP, PEP, and DoxyPEP Managed as a Full Protocol
Parktree prescribes and monitors all three prevention medications: daily oral PrEP (with the required HIV and kidney-function lab work built into ongoing care), PEP for post-exposure scenarios, and DoxyPEP. The doxycycline regimen taken after condomless sex to reduce bacterial STI acquisition. Each requires active clinical management, and Parktree staffs that oversight directly rather than handing off prescriptions without a monitoring framework.
Inland Empire Womens Center in Ontario runs by appointment, so each visit is structured around your specific needs: covering gonorrhea, chlamydia, syphilis, HIV, hepatitis, herpes, and TB, with same-visit treatment for bacterial infections, on a fee-based sliding scale with insurance accepted. Spanish-language care is available throughout.
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Spanish Is the Working Language Here
When a clinic can't carry a conversation past check-in, the follow-up questions don't get asked, the treatment instructions don't land, and the visit loses most of its value. At Inland Empire Womens Center, Spanish is available across the full encounter (testing, counseling, and treatment) so nothing critical gets dropped in translation.
Herpes and Hepatitis Testing Alongside the Standard Panel
For anyone without a regular provider and paying directly, Inland Empire Womens Center's panel (which adds herpes, hepatitis A, hepatitis B, hepatitis C, and TB to the core four) means a single appointment resolves what would otherwise require multiple referrals to different labs or specialists.
Tests & treats
Address
3130 Inland Empire Boulevard, Building B Ontario, CA 91764
San Bernardino County Department of Public Health in Ontario tests for HIV, syphilis, gonorrhea, chlamydia, hepatitis B, hepatitis C, and TB on a sliding-scale fee, Medicaid and Medicare accepted, with STI treatment on-site; an appointment is required, and services are available in Spanish.
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Hepatitis B and C Included in the Panel
Beyond bacterial and HIV testing, the clinic runs hepatitis B and hepatitis C antibody tests as part of its standard workup. That means a single visit can account for infections across multiple transmission routes, bloodborne and sexual, without needing separate orders or a second facility.
Ryan White Funds HIV Care From Test to Treatment
Ryan White funding lets the clinic carry a person from initial HIV testing through ongoing medical management, no separate specialist hunt, no coverage gap to bridge. For someone without a regular HIV provider or navigating care without private insurance, this is a continuous clinical relationship, not a one-time result.
Spanish Spoken by Clinical Staff Here
Staff deliver care in Spanish directly, so a patient can ask follow-up questions, understand a treatment plan, and discuss their history in the language they use every day. Without a relay between the clinician and the conversation.
A community safety-net federally qualified health center about 3 miles from Ontario. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
CNHF - Upland, in Upland, welcomes patients without an appointment, making it easy to act on STI concerns the same day. Federally qualified status backs a sliding-scale fee structure tied to income, covering syphilis, gonorrhea, and chlamydia screening in a single walk-in visit.
Friends of Family Health Center in Montclair screens for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding scale, with insurance and Medicaid accepted. Appointments are required; bacterial STIs are treated same visit, and staff speak Spanish, Tagalog, and Vietnamese.
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Staff Speak Spanish, Tagalog, and Vietnamese Directly
Many clinics handle language through add-on services that put a layer between patient and provider. At Friends of Family Health Center, Spanish, Tagalog, and Vietnamese are spoken by staff themselves. Meaning clinical conversations happen in the room, with the person actually delivering care.
Friends of Family Health Center prescribes all three current HIV and bacterial STI prevention medications: PrEP for ongoing HIV prevention with lab monitoring built into the care cycle, PEP for post-exposure HIV prevention, and DoxyPEP. The doxycycline-based protocol taken after potential bacterial STI exposure. Each requires its own clinical pathway, and all three are handled here.
Friends of Family Health Center holds the standing capability to test for herpes and hepatitis A, B, and C. Infections that a shorter panel omits entirely. For anyone without a regular provider who needs a thorough baseline workup, or who is paying out of pocket and wants comprehensive results in a single visit, that expanded scope means fewer gaps and fewer separate appointments to arrange.
Listing verified Nov 2025 · Source: CDC NPIN + HRSA
Community health center 4.6 miles
AHF Wellness Center - Upland
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AHF Wellness Center in Upland delivers HIV, chlamydia, gonorrhea, and syphilis testing alongside same-visit bacterial treatment and sliding-scale prevention services — all at no charge, no insurance required, and no appointment needed.
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Zero Cost Across Every Service Offered
AHF Wellness Center in Upland extends its no-fee structure to every service on the menu — testing, treatment, and prevention included. For anyone managing care without a regular provider or paying entirely out of pocket, that means walking in, getting tested, and leaving with treatment or a prescription without a bill attached to any of it.
AHF Wellness Center prescribes PrEP, PEP, and DoxyPEP directly, with pharmacy support for fills and refills — including home delivery where available — so the gap between a prevention conversation and an active prescription closes at the same visit.
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.
The nearest testing center is about 2 miles away, if you'd rather skip the trip, an at-home kit ships to Ontario, 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 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
Quest Diagnostics
$79 & up
Panel:
8-infection panel incl. chlamydia, gonorrhea, HIV, syphilis, hepatitis & herpes: single tests too
Sample:
Quest Mobile: a phlebotomist collects your sample at home
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
Other CLIA-certified labs near Ontario, CA
Beyond the public testing sites above, these federally certified (CLIA) labs serve San Bernardino 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.
Kaiser Foundation Hospital
2295 South Vineyard Avenue, Ontario, CA 91761
CMS-certified labAccredited · College of American Pathologists
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Ontario. 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
Clinicians near Ontario, CA who may help arrange STD testing
Beyond dedicated clinics, 4,795 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Ontario. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1,617 offer telehealth.
HL
Hedy Loa, MD
Internal medicine · 1131 West 6th Street, Ontario, CA
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
Pharmacies near Ontario, CA
Compare the pharmacies closest to Ontario, CA. Contact a location directly to confirm pharmacy-counter hours, services, prices, and product availability before visiting.
1.5 mi
Rx pickupOTC HIV self-testAt-home STI kitsMinuteClinic STI careHPV & Hep B vaccinesCondoms / EC
Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.
Prevention & treatment
PrEP, prevention & online treatment
Testing is one step. For residents of Ontario, 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.
Online treatment
Nurx
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
STDs & HIV in San Bernardino County: the local picture
How reported STI rates in San Bernardino County, the county that includes Ontario, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~32% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#8
#8 of 58 California counties for chlamydia, a higher rate than 86% of the state
Reported STD rates per 100,000, San Bernardino County vs California vs U.S.
San Bernardino CountyCaliforniaU.S.▲▼ = San Bernardino County vs the state average
Infection
San Bernardino County
California
United States
Chlamydia
562.112,342 cases▲ 14%
491.1
492.2
Gonorrhea
164.63,615 cases▼ 13%
190.2
179.5
Syphilis (P&S)
14.3315 cases▼ 12%
16.3
15.8
Syphilis (early)
18.9415 cases▼ 1%
19.1
16
Syphilis (late/unknown)
74.21,630 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.
Reported STD rates in San Bernardino County over time (per 100,000)
Chlamydia ▲ 1% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
Between 2020 and 2023 in San Bernardino County, chlamydia has risen from 484.5 to 562.1 per 100,000 (16%), gonorrhea has fallen from 197 to 164.6 per 100,000 (16%), and P&S syphilis has fallen from 17.5 to 14.3 per 100,000 (18%).
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
What shapes testing access in and around Ontario, CA
Adults uninsured
17.2%
No routine checkup
31.6%
No transportation
12.6%
Binge drinking
15.5%
Frequent mental distress
17.7%
Depression
19.1%
Below poverty line
12.9%
Primary-care ratio
1,699 : 1
San Bernardino County
Primary-care shortage score 19 / 26
Medically Underserved Area · IMU 46.2
Social Vulnerability Index · 89th percentile nationally
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 San Bernardino County.
Local HIV snapshot
HIV in San Bernardino County (2023)
Federal priority area: San Bernardino County is one of 48 U.S. counties prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.
People living with HIV
298 / 100k
New diagnoses (2023)
295cases countywide
On PrEP (coverage)
11.1%
San Bernardino County HIV care continuum (2023)
San Bernardino County recorded 16.3 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among San Bernardino County residents living with HIV, 78% know their status · 69.6% are in care · 62.3% 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.
Pregnant or planning to be?Congenital syphilis is the fastest-rising STI: what to test, and when
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 San Bernardino County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines →
Households in Ontario tend to run large and rooted: nearly half of adults are married, homes hold close to four people on average, and a slim majority own rather than rent. That kind of household density shapes how health decisions get made: a partner's nudge, a shared schedule, the weight of rent or a mortgage payment all factor into whether screening moves from intention to appointment. With roughly half the city renting and typical monthly rent sitting at $1,499, discretionary spending on healthcare visits competes with real budget pressure, which makes the cost structure and hours of local clinics matter more than they might elsewhere. The younger adults moving through their late teens and twenties, the years when STI transmission concentrates most, represent a substantial slice of Ontario's population, and many of them are in those renting, early-career households where both time and money feel tight.
Six in ten residents are active in the workforce, and with unemployment running noticeably above the state's aspirational benchmarks, irregular schedules are common. Testing options are listed on this page. The range of fees, hours, and locations means most Ontario households, whether a two-income family on Holt Boulevard or a renter figuring out a Thursday afternoon, can find something workable.
Getting there
How residents reach STD testing in Ontario, CA
Walkability12.57 / 20 · Above average
Ontario scores 12.57/20 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 91762 snapshot
Residents
63,656
Median age
33.9
Median income
$76,289
ZIP-level Census figures for the wider 91762 area around Ontario: a single ZIP can span several communities, so they describe the area, not Ontario alone.
Ontario sits in San Bernardino County, ZIP 91762. Local context that shapes where residents test:
Local landmarks
Boeing B-17G Flying Fortress
Chaffey Community Museum of Art
Vineyard Park
Olivedale Park
Planes of Fame Air Museum
Yanks Air Museum
Major routes
Mission Boulevard
CA 60 (Pomona Freeway)
West Mission Boulevard
US 99 Hist (Holt Boulevard)
South Vineyard Avenue
Nearby cities & towns
STD testing near Ontario, CA
Just outside Ontario? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
STD testing in Ontario, CA: screening, costs & privacy
Everything to know before you test in San Bernardino 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.
Who should test, and whenCDC screening schedule + each infection's detection window
Who should get tested, and how often
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
When to test: STD detection windows
Testing too early can return a false negative, confirm timing with an Ontario-area provider.
What each STD test costsMedicare reference prices per lab test, a benchmark before you pay out of pocket
These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Ontario 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.
Confidentiality & consent in CaliforniaMinor consent and partner treatment (EPT) under state law, plus how to test privately
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).
Can a minor consent on their own?
In California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
Can my partner be treated too? (EPT)
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.
