HIV diagnoses in LaSalle County run about 45% lower than the US average. If you're in Marseilles, Illinois, looking for a one-time concern or regular check-ups, you have several testing options: public clinics keep costs down, private labs prioritize speed, and at-home kits trade a clinic visit for convenience. Find testing options on this page.
Available testing centers
9 testing options are listed for Marseilles, IL. The nearest, Ottawa Regional Hospital & Healthcare Center, is about 2.5 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.
A community safety-net rural health clinic about 3 miles from Marseilles. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
A safety-net rural health clinic about 16 miles from Marseilles. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
A public safety-net rural health clinic about 20 miles from Marseilles. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Local NP in Lasalle tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee with insurance and Medicaid accepted. Appointments are required, and bacterial STIs can be treated the same visit; PrEP is available on-site.
Local NP writes PrEP prescriptions and handles the follow-up lab monitoring, HIV and kidney function testing, that keeping someone on Tenofovir-based PrEP safely requires. PEP is also prescribed on-site, meaning the full prevention pharmacology sits with the same clinical staff managing the testing.
Plenty of testing sites can flag a hepatitis C antibody, fewer can actually treat it. Local NP goes the full distance: reactive results move into on-site treatment, so patients aren't left managing a chronic infection while waiting for a separate provider to get involved.
Someone without a regular primary care provider, or paying out of pocket and wanting one thorough visit rather than multiple appointments, benefits from Local NP's broader scope: herpes and hepatitis A, B, and C sit alongside the standard four, so a single appointment covers exposures that a trimmed-down panel would miss entirely.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Feb 2026 · Source: CDC NPIN
Community Health Partnerships of a community health center in Mendota, tests for HIV, syphilis, gonorrhea, chlamydia, hepatitis B, and hepatitis C on a sliding-scale fee accepted by Medicaid and Medicare, with appointments required and STI treatment on-site. Care is available in Spanish.
Community Health Partnerships of Illinois operates STI and hepatitis care directly in Spanish, not through a supplemental service, but as a primary clinical language at the Mendota site. That means history-taking, diagnosis, and treatment discussion all happen in Spanish without a handoff.
The clinic tests for both hepatitis B and hepatitis C in addition to HIV, syphilis, gonorrhea, and chlamydia. Because both hepatitis strains are included in the same visit, a single appointment can resolve questions across infections that otherwise require separate care episodes.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 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 3 miles away; if you'd rather skip the trip, an at-home kit ships to Marseilles, 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 LaSalle 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.
111 Spring Street, Streator, IL 61364
CMS-certified lab Accredited · Joint Commission
1100 East Norris Drive, Ottawa, IL 61350
CMS-certified lab Accredited · Joint Commission
925 West Street, Peru, IL 61354
CMS-certified lab Accredited · Joint Commission
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Marseilles. 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, 158 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Marseilles. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 42 offer telehealth.
Mohammed Saed, MD
Internal medicine · 580 Sycamore Street, Marseilles
Gueorgui Gueorguiev, MD Telehealth
Family medicine · 102 11th Street, Marseilles
Colin Kao, MD
Family medicine · 271 North Main Street, Seneca
Geetha Dodda, MD Telehealth
Internal medicine · 1304 Gemini Circle, Ottawa
Jeffrey Tanzi, DO
Family medicine · 1306 Gemini Circle, Ottawa
Robert Maguire, MD
Internal medicine · 704 East Glover Street, Ottawa
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 Marseilles, IL 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.
Schotts Pharmacy
2.8 miSeneca Pharmacy
3.9 mi
8.4 mi The Pharmacy Stop
8.7 mi
8.7 mi Medi-RX Pharmacy
8.7 miShowing the 6 closest pharmacies to Marseilles, IL.
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 Marseilles, 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 LaSalle County, the county that includes Marseilles, compare with Illinois and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~21% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#55 of 102 Illinois counties for chlamydia, a higher rate than 46% of the state
| Infection | LaSalle County | Illinois | United States |
|---|---|---|---|
| Chlamydia | 232.7 252 cases ▼ 58% | 557.7 | 492.2 |
| Gonorrhea | 55.4 60 cases ▼ 73% | 202.3 | 179.5 |
| Syphilis (P&S) | 3.7 4 cases ▼ 68% | 11.6 | 15.8 |
| Syphilis (early) | 1.8 2 cases ▼ 83% | 10.9 | 16 |
| Syphilis (late/unknown) | 14.8 16 cases ▼ 43% | 26 | 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 LaSalle County, chlamydia has fallen from 280 to 232.7 per 100,000 (17%), gonorrhea has fallen from 82.1 to 55.4 per 100,000 (33%), and P&S syphilis has risen from 1.8 to 3.7 per 100,000 (106%).
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 LaSalle County.
Local HIV snapshot
LaSalle County HIV care continuum (2021)
LaSalle County recorded 7.5 new HIV diagnoses per 100,000 (2021), against 14.7 statewide and 13.7 nationally. Among LaSalle County residents living with HIV, 82.1% are in care · 75% 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 LaSalle County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
US 6 runs straight through Marseilles as East Bluff Street, passing homes that sell for well under the state median, and that affordability is part of what keeps a stable, largely owner-occupied community rooted here. Most households are married with children or extended family under one roof, which means health decisions rarely happen in isolation; a missed screening affects more than one person. Still, unemployment here is notably elevated, and roughly a third of residents rent, often managing tight monthly budgets.
When a clinic visit feels like a competing line item against $949 rent, it tends to get quietly deferred. That deferral hits hardest for younger adults: people in their late teens and twenties who are, statistically, the most likely to encounter an undiagnosed STI and the least likely to have a standing relationship with a primary-care provider. Woodsmoke Ranch residents and anyone else along the US 6 corridor can use the distance filters on this page to find the option that makes the most sense before the next month's rent is due.
Getting there
At 6.16/20 on the EPA walkability index, day-to-day errands in Marseilles 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 61341 snapshot
ZIP-level Census figures for the wider 61341 area around Marseilles: a single ZIP can span several communities, so they describe the area, not Marseilles alone.
Marseilles sits in LaSalle County, ZIP 61341. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Marseilles? 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 LaSalle County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Illinois 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 Marseilles-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 Marseilles 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 Illinois 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 Illinois, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
Illinois 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 IllinoisSource: 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.
Yes, several local labs offer same-day walk-in testing; best to call first.
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.
LaSalle County reported ~233 chlamydia cases per 100,000 in 2023, below the Illinois average.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
In Illinois, people under 18 can consent to confidential STD testing and treatment on their own.
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.
Teen and campus health clinics and public health departments offer youth-friendly, low-cost testing.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.