Gonorrhea is 64% more common in St Louis than the US average. If you've had a recent risk or test on a regular schedule in Green Park, Missouri, consider these options: public clinics keep costs down, private labs prioritize speed, and at-home kits trade a clinic visit for convenience. Find local choices below.
Available testing centers
9 testing options are listed for Green Park, MO. The nearest, Labcorp, is about 1.3 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.
Total Access Urgent Care in St. Louis runs rapid HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis B tests on a walk-in basis, accepting Medicaid, Medicare, and most insurance, with a standard fee for those paying directly. No appointment needed.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Apr 2026 · Source: CDC NPIN
Mercyin Saint Louis pairs rapid and conventional HIV testing with same-visit treatment for bacterial STIs (gonorrhea, chlamydia, syphilis) all on a fee-based sliding scale that adjusts to income. Medicare and insurance are accepted, and appointments are required.
Plenty of clinics test for gonorrhea, chlamydia, syphilis, and HIV and stop there. Mercy's panel reaches further (herpes, hepatitis A, B, and C, and TB are all on the table) so a single appointment can account for infections that often go undetected simply because they weren't ordered.
Getting a hepatitis C diagnosis at one clinic and chasing treatment elsewhere is the norm for many patients, Mercybreaks that pattern. On-site hepatitis C treatment means the care path stays in one place, and the same is true for hepatitis A and B, which are also managed and vaccinated against at Mercy.
Mercyprescribes PrEP, PEP, and DoxyPEP, which means a patient's prevention strategy (whether ongoing HIV prophylaxis, post-exposure HIV coverage, or post-exposure bacterial STI protection) can be established, adjusted, and monitored without leaving the practice.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Nov 2025 · 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
Mercy-GoHealth Urgent Care in Crestwood accepts Medicaid and most insurance, with fees for uninsured patients, covering gonorrhea, chlamydia, herpes, hepatitis A, B, and C, and TB: walk-ins welcome, with same-visit treatment for bacterial infections and interpretation services available.
Interpretation services are available for non-English speakers at Mercy-GoHealth Urgent Care, which means symptom history and treatment instructions move between clinician and patient with full accuracy. Reducing the chance that something clinically significant gets lost or misunderstood.
Beyond gonorrhea and chlamydia, Mercy-GoHealth Urgent Care tests for herpes and for hepatitis A, B, and C (each requiring its own distinct assay, whether a type-specific IgG blood draw for herpes or antigen and antibody markers for the hepatitis panel) all ordered and collected on-site in a single visit.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Fees & payment
Listing verified Dec 2025 · Source: CDC NPIN
Novus Health in Saint Louis takes walk-ins for the full bacterial and viral panel (gonorrhea, chlamydia, syphilis, herpes, rapid and conventional HIV, and hepatitis A, B, and C) with same-visit treatment for bacterial infections, sliding-scale fees, and every test free.
Free HIV and STI testing at Novus Health extends to the full scope of care: TB testing and treatment, hepatitis treatment, PrEP, and HIV medical management all carry no fee. The zero-cost structure applies to the clinical services themselves, not just the initial screening.
Many prevention-focused clinics stock condoms and education but hand off prevention medication to primary care. Novus Health prescribes and manages both PrEP and PEP in-house, including for uninsured patients, so ongoing prevention stays with the same clinical team.
Hepatitis C care at Novus Health runs through direct-acting antivirals prescribed and monitored on-site: the same clinical staff handling diagnosis also oversees the treatment course, meaning viral load follow-up and prescription management stay within one practice rather than splitting across referral networks.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Sep 2025 · 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 about 1 mile away; if you'd rather skip the trip, an at-home kit ships to Green Park, 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 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 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.
9985 Lin Ferry Drive, Saint Louis, MO 63123
CMS-certified lab
13610 Riverport Drive, Maryland Heights, MO 63043
CMS-certified lab Accredited · AABB
1 Jefferson Barracks Drive, Saint Louis, MO 63125
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Green Park. 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, 1,979 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Green Park. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 541 offer telehealth.
John Judd, MD
OB-GYN · 9350 Green Park Road, Saint Louis
Jambunathan Mahadevan, MD
Internal medicine · 11222 Tesson Ferry Road, Saint Louis
Felix Herrera, MD
Family medicine · 4173 Crescent Drive, Saint Louis
Svetha Chunduri, MD
Internal medicine · 12654 Lamplighter Sqr Shppng Ctr, Saint Louis
Yvonne Layugan, MD Telehealth
Family medicine · 123 Concord Plaza Shopping Ctr, Saint Louis
Alexander Mammen, MD
Family medicine · 4530 Lemay Ferry 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 Green Park, 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.
0.6 mi Sefora Enterprises
0.6 mi
1.0 mi 
1.1 mi Showing the 4 closest pharmacies to Green Park, 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 Green Park, 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
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
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
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 Green Park, compare with Missouri 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.
#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
A Saturday morning trip to Arnold City Park or an errand along South Lindbergh Boulevard is part of the rhythm here, and so is the practical thinking that comes with living in a place where people build lives and families. Green Park residents, many of them homeowners who've settled in for the long term, tend to approach health decisions the same way: straightforward, without fuss. That includes STI testing, which matters especially for young adults in their late teens through thirties, whether they're new to the area or rooted in neighborhoods like Concord and Mehlville. Testing availability in and around Green Park reflects the medical resources of the larger St.
Louis region. Local clinics and county health services offer confidential screening with no judgment attached, a fact that carries particular weight in a community where people know their neighbors and value their privacy. The tests themselves are quick and routine; results stay confidential by law, and most people move through the process without disruption to their week. Finding the right place to test is simpler when you know where to look.
Clinics listed on this page include hours, locations, and whether appointments are required, so you can fit screening into your actual schedule rather than around it. For anyone uncertain about next steps, staff at these sites answer questions without making you feel rushed.
Getting there
Green Park scores 10.6/20 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 63123 snapshot
ZIP-level Census figures for the wider 63123 area around Green Park: a single ZIP can span several communities, so they describe the area, not Green Park alone.
Green Park sits in St. Louis County, ZIP 63123. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Green Park? 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 Green Park-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 Green Park 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.
Possibly, Crestwood, MO is close; compare it by distance against Labcorp.
Public clinics are free; 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 635 cases per 100,000 residents (2023), above the Missouri average.
In Missouri, people under 18 can consent to confidential STD testing and treatment on their own.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
Medical records are protected under federal HIPAA law, ask the clinic how it handles your information.
It's reassuring, but if you tested early in the window period, retest a few weeks later to be sure.
A retest around 3 months after treatment is recommended for chlamydia and gonorrhea.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.