Syphilis in Rockingham County runs about 72% lower than the US average, even though reported infections have risen. If you're considering testing before starting a new relationship or as part of ongoing care in New Castle, New Hampshire, choosing between public clinics, private labs, or at-home kits depends on your need for low cost, quick results, or convenience. A range of options is available below.
Available testing centers
7 testing options are listed for New Castle, NH. The nearest, Convenient MD Urgent Care, is about 2.6 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.
Convenient MD Urgent Care in Portsmouth runs walk-in STI care with no appointment needed: gonorrhea, chlamydia, and syphilis testing alongside the mpox vaccine and bacterial STI treatment, all covered at no cost to the patient.
Languages
English
Tests offered
Care services
Fees & payment
Listing verified Dec 2025 · Source: CDC NPIN
Cross Roads House, Portsmouth, earned its federally qualified health center designation by tying fees to income. No one is turned away for inability to pay. Walk-ins can access sliding-scale STI screening covering syphilis, gonorrhea, and chlamydia without needing an appointment first.
Tests offered
Fees & payment
Greater Seacoast Community Health in Portsmouth sees patients by appointment and covers gonorrhea, chlamydia, syphilis, herpes, HIV, and hepatitis A, B, and C testing in a single visit, with same-visit bacterial treatment, sliding-scale fees, and interpretation services available.
Without language access at the clinic itself, a diagnosis that needs follow-up (a reactive hepatitis result, a treatment plan, a PrEP conversation) can stall in confusion and go unaddressed. At Greater Seacoast Community Health, interpretation services are available on-site, so nothing in the care process gets lost between languages.
Greater Seacoast Community Health prescribes both PrEP and PEP directly, which means HIV prevention medication and an ongoing prescribing relationship stay with the same provider who manages testing and treatment.
Hepatitis C antibody testing without treatment capacity leaves patients to find specialty care on their own, a gap that delays or ends curative treatment for many. Greater Seacoast Community Health treats hepatitis C on-site, closing that gap entirely.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 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 about 3 miles away; if you'd rather skip the trip, an at-home kit ships to New Castle, 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 Rockingham 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.
155 Borthwick Avenue, Suite 102 West, Portsmouth, NH 03801
CMS-certified lab
5 Alumni Drive, Exeter, NH 03833
CMS-certified lab Accredited · College of American Pathologists
302 Newmarket Street, Portsmouth, NH 03803
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near New Castle. 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, 416 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of New Castle. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 156 offer telehealth.
Heather Moher, DO
Family medicine · 35 Walker Street, Kittery
Jeffrey Segil, MD
OB-GYN · 8 Greenleaf Woods Drive, Portsmouth
Katherine Hollister, MD
Internal medicine · 600 Lafayette Road, Portsmouth
Kim Ariyabuddhiphongs, MD
Internal medicine · 360 US Hwy 1 Byp, Portsmouth
Dafer Al-Haddadin, MD
Infectious disease · 100 Eileen Dondero Foley Avenue, Portsmouth
Daniel Davies, DO Telehealth
Internal medicine · 330 Borthwick Avenue, Portsmouth
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 New Castle, NH 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.
1.9 mi 
2.6 mi 
2.7 mi Showing the 3 closest pharmacies to New Castle, NH.
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 New Castle, 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 Rockingham County, the county that includes New Castle, compare with New Hampshire and U.S. averages, based on the most recent 2023 surveillance data.
#5 of 10 New Hampshire counties for chlamydia, a higher rate than 50% of the state
| Infection | Rockingham County | New Hampshire | United States |
|---|---|---|---|
| Chlamydia | 154 494 cases ▼ 22% | 196.6 | 492.2 |
| Gonorrhea | 31.8 102 cases ▼ 24% | 41.9 | 179.5 |
| Syphilis (P&S) | 4.4 14 cases ▲ 13% | 3.9 | 15.8 |
| Syphilis (early) | 0.6 2 cases ▼ 68% | 1.9 | 16 |
| Syphilis (late/unknown) | 3.4 11 cases ▼ 15% | 4 | 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 Rockingham County, chlamydia has fallen from 171.2 to 154 per 100,000 (10%), gonorrhea has risen from 26.7 to 31.8 per 100,000 (19%), and P&S syphilis has risen from 3.2 to 4.4 per 100,000 (38%).
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 Rockingham County.
Local HIV snapshot
Rockingham County HIV care continuum (2023)
Rockingham County recorded 2.9 new HIV diagnoses per 100,000 (2023), against 2.8 statewide and 13.7 nationally. Among Rockingham County residents living with HIV, 81.2% are in care · 74.6% 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 Rockingham County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Outalong sits at the quieter end of New Castle's island geography, where the daily rhythm runs closer to the tides than the traffic on State Street, and where nearly nine in ten households own their homes, often for the long term. That kind of rooted stability shapes how people think about health care: routines get built around familiar providers, and a community where most adults are partnered and household incomes skew well above the regional median can make preventive care feel like something that just gets handled. But that assumption is worth examining, especially for younger adults in their late teens and twenties, whose years of forming new relationships don't pause for geographic insularity.
What does complicate things here is the physical reality of the island itself. With more than half the adult population outside the labor force, scheduling a drive like that is more feasible for some residents than for others.
Getting there
At 6.89/20 on the EPA walkability index, day-to-day errands in New Castle 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.
New Castle sits in Rockingham County, ZIP 3854. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside New Castle? 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 Rockingham County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under New Hampshire 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 New Castle-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 New Castle 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 New Hampshire 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 New Hampshire, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
New Hampshire 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 New HampshireSource: 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.
The closest is Convenient MD Urgent Care (2.6 mi); 7 options are within 30 miles.
Medicaid generally covers STD testing, and public clinics test for free regardless of coverage.
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 154 cases per 100,000 residents (2023), below the New Hampshire average.
In New Hampshire, 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.
Start treatment, tell recent partners so they can test, avoid sex until cleared, and retest if advised, most STIs resolve with care.
Likely yes, if you were past the window period; otherwise retest, and keep up routine screening with new partners.
A urine sample or a swab (genital, throat, or rectal) detects gonorrhea, often tested alongside chlamydia.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.