St. Louis County reports about 15 new HIV diagnoses per 100,000 people, making regular screenings important. Whether it's your first STI test or a routine screening in Des Peres, Missouri, you can choose between walk-in clinics for immediate testing or at-home kits or labs that fit your schedule. Below is a list of your options.
Available testing centers
9 testing options are listed for Des Peres, MO. The nearest, Mercy, is about 0.2 miles away. Compare community and public clinics, private labs, and at-home kits below.
Mercy in Des Peres runs STI care on a sliding scale with Medicaid, Medicare, and private insurance all accepted. Donations cover gaps for those who need it. The standard bacterial panel includes gonorrhea, syphilis, and chlamydia with same-visit treatment, plus rapid and conventional HIV testing; appointments are required.
Plenty of STI clinics cap their testing at HIV, gonorrhea, syphilis, and chlamydia and leave patients to seek herpes or hepatitis screening elsewhere. Mercy tests for herpes, hepatitis A, hepatitis B, and hepatitis C directly alongside that core panel. With hepatitis A and B vaccines available to address what a positive result might indicate going forward.
DoxyPEP (doxycycline taken after a potential bacterial STI exposure to reduce the risk of chlamydia, gonorrhea, and syphilis) is available directly through Mercy in Des Peres. Having that prescription tied to an established clinical relationship, rather than sourced separately, keeps the regimen consistent and the monitoring grounded in one place.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Dec 2025 · Source: CDC NPIN
Total Access Urgent Care in Ballwin tests for HIV, gonorrhea, chlamydia, syphilis, herpes, and hepatitis B on a sliding-scale fee accepted by Medicaid, Medicare, and most insurers. No appointment required to be seen.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Apr 2026 · Source: CDC NPIN
Mercy-GoHealth Urgent Care in Kirkwood takes walk-ins for STI testing across gonorrhea, chlamydia, herpes, hepatitis A, B, and C, and TB, with bacterial infections treated the same visit; fees are billed to Medicaid or insurance on a sliding scale.
Gonorrhea and chlamydia are the floor, not the ceiling, at Mercy-GoHealth. The panel extends to herpes simplex and all three hepatitis strains (A, B, and C) plus TB, which means a single visit can produce answers across infections rather than requiring separate appointments at separate facilities.
Many urgent-care clinics treat bacterial STIs reactively but won't write a DoxyPEP prescription, the doxycycline-based post-exposure prevention protocol. Mercy-GoHealth Kirkwood does, positioning it as one of the few urgent-care settings where that specific prevention tool is available without routing elsewhere.
Interpretation at Mercy-GoHealth Kirkwood is an operational service built into care delivery: non-English-speaking patients are connected through staffed interpretation rather than an ad hoc workaround, so clinical conversations about testing, treatment, and prevention carry the same precision regardless of which language they happen in.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Sep 2025 · Source: CDC NPIN
Planned Parenthood Great Rivers in Manchester runs on a sliding scale, takes Medicaid and most insurance, and covers the full bacterial and viral panel (gonorrhea, chlamydia, syphilis, hepatitis B and C, herpes, and rapid or conventional HIV) with same-visit treatment for bacterial infections. Appointments required.
Planned Parenthood Great Rivers in Manchester offers services in Spanish and through interpretation for other languages, which means test results, treatment options, and prevention conversations happen with real comprehension, not approximation, on both sides.
As a Title X clinic, Planned Parenthood Great Rivers provides family planning services, including STI testing and treatment, that are legally confidential for minors, meaning a young person's records stay protected regardless of who holds their insurance.
Many STI clinics test and treat but send patients elsewhere for HIV prevention prescriptions. Planned Parenthood Great Rivers prescribes both PrEP and PEP directly, so ongoing prevention and acute response both stay with the same clinical team.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN
Saint Louis County Department of Public Health in Sunset Hills covers gonorrhea, chlamydia, syphilis, and HIV testing, with same-visit treatment for bacterial infections confirmed on-site. Appointments are required, and fees run on a sliding scale with Medicaid and private insurance accepted.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN
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 Des Peres, 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 for simplicity & support
$89 & 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 St. Louis 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.
3015 North Ballas Road, Saint Louis, MO 63131
CMS-certified lab Accredited · College of American Pathologists
2315 Dougherty Ferry Road, Suite 200A, Saint Louis, MO 63122
CMS-certified lab
2325 Dougherty Ferry Road, 207, Saint Louis, MO 63122
CMS-certified lab
3009 North Ballas Road, Suite 300A, Saint Louis, MO 63131
CMS-certified lab
2325 Dougherty Ferry Road, Suite 201, Saint Louis, MO 63122
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Des Peres. 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, 2,000 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Des Peres. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 549 offer telehealth.
Kimberly Jamison, MD
Internal medicine · 1032 Old Des Peres Road, Saint Louis
Sanaa Waheed, MD Telehealth
Internal medicine · 1000 Des Peres Road, Des Peres
Barbara Ellzey, MD
Internal medicine · 12304 Manchester Road, Des Peres
Sami Elamin
Internal medicine · 12800 Corporate Hill Drive, Saint Louis
Renuka Sodhi, MD
Internal medicine · 12826 Daylight Circle, Saint Louis
Sona Kamat, MD
Internal medicine · 13100 Manchester Road, Saint Louis
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 Des Peres, MO 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.
0.5 mi 
0.7 mi Dierbergs Des Peres
0.8 miMercy Pharmacy Des Peres
0.8 miSt Luke's Convenient Care
0.8 miShowing the 5 closest pharmacies to Des Peres, MO.
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 Des Peres, 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.
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
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions 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 St. Louis County, the county that includes Des Peres, compare with Missouri and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~13% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#5 of 115 Missouri counties for chlamydia, a higher rate than 96% of the state
| Infection | St. Louis County | Missouri | United States |
|---|---|---|---|
| Chlamydia | 635.3 6,271 cases ▲ 27% | 498.6 | 492.2 |
| Gonorrhea | 294.7 2,909 cases ▲ 46% | 201.9 | 179.5 |
| Syphilis (P&S) | 16 158 cases ▼ 26% | 21.5 | 15.8 |
| Syphilis (early) | 10 99 cases ▼ 19% | 12.4 | 16 |
| Syphilis (late/unknown) | 30 296 cases ▼ 11% | 33.8 | 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 St. Louis County, chlamydia has risen from 603.8 to 635.3 per 100,000 (5%), gonorrhea has fallen from 339.5 to 294.7 per 100,000 (13%), and P&S syphilis has risen from 15.5 to 16 per 100,000 (3%).
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 St. Louis County.
Local HIV snapshot
Federal priority area: Missouri is one of the U.S. jurisdictions prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.
St. Louis County HIV care continuum (2023)
St. Louis County recorded 14.7 new HIV diagnoses per 100,000 (2023), against 10.6 statewide and 13.7 nationally. Among St. Louis County residents living with HIV, 75.9% are in care · 65.4% 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 St. Louis County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Manchester Road cuts west through Des Peres on a familiar errand-run route, and most of the clinics listed here sit within a short drive along MO 100 or a quick turn onto Big Bend Road. Close enough that a lunch break or an errand stop can cover it without rearranging a whole day. That convenience matters especially for the younger adults here who are still in the highest-risk years for STIs, people in their late teens and twenties tend to delay testing not from indifference but because scheduling feels like one more obstacle. Des Peres is unusually settled by most measures: nearly three-quarters of households are headed by married couples, families here run larger than the national average, and an overwhelming share of residents own their homes rather than rent.
That stability is real, but it doesn't insulate anyone from the ordinary exposures that make routine screening worthwhile, and a workforce participation rate that leaves a meaningful slice of adults outside regular employment means schedules aren't always built around predictable windows of free time. With the rare renter here carrying a monthly cost that rivals mortgage payments in other zip codes, out-of-pocket testing fees can land differently than they might appear. Several of the clinics on this page offer sliding-scale or low-cost options worth checking before assuming the visit is expensive, worth a look before bypassing a test that would take about as long as the drive past Ebsworth Park and back.
Getting there
Des Peres scores 11.87/20 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 63122 snapshot
ZIP-level Census figures for the wider 63122 area around Des Peres: a single ZIP can span several communities, so they describe the area, not Des Peres alone.
Des Peres sits in St. Louis County, ZIP 63122. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Des Peres? 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 St. Louis County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Missouri 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 Des Peres-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 Des Peres 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 Missouri 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 Missouri, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Missouri 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 MissouriSource: 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.
Yes, Medicaid typically covers it, and public clinics are free either way.
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.
St. Louis County reported ~635 chlamydia cases per 100,000 in 2023, above the Missouri average.
Most results are ready in about 1–2 days.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
In Missouri, people under 18 can consent to confidential STD testing and treatment on their own.
Use condoms, test regularly, get the HPV and hep B vaccines, and ask about PrEP for HIV.
It's a common STI symptom; test for chlamydia and gonorrhea and have a provider check you.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.