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STD Testing in Los Altos, CA: Free, Same-Day & Confidential

In Santa Clara County, reported chlamydia runs about 39% lower than the US average. If you're in Los Altos, California, whether it's your first STI test or a routine screening, you have options. Clinics may bill insurance or offer sliding-scale fees, while private labs let you pay a flat self-pay price. See the list below for options.

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  • Clinics, labs & at-home kits compared
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  • Backed by CDC, CMS & Census data
  • Editorially reviewed

STD testing near Los Altos, CA

12 testing options are listed for Los Altos, CA. The nearest, Labcorp, is about 0.8 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.

Highest rated 0.8 miles

Stanford Childrens Health

Where these reviews come from

Review sources

  • Google10
  • EasySTD1
Rated 4.5 out of 5 from 11 reviews

Stanford Children's Health in Mountain View brings STI testing through a pediatric and family health system, pairing gonorrhea, chlamydia, syphilis, and HIV screening with sliding-scale fees, same-visit bacterial treatment, and appointment-based access. With interpretation services in Spanish and other languages available throughout.

Read full overview Show less

Stanford Children's Health offers Spanish-language services and broader interpretation support directly within the clinical encounter: meaning the conversation about symptoms, test results, and next steps happens in the language a patient uses, without routing communication through a separate layer.

Without PrEP and PEP available on-site, prevention becomes a separate referral chain. A second clinic, a new intake, a gap before medication starts. Stanford Children's Health in Mountain View manages both, keeping the prescription and the monitoring in the same practice where testing already happens.

Stanford Children's Health tests for seven infections (gonorrhea, chlamydia, syphilis, HIV, herpes, hepatitis A, hepatitis B, and hepatitis C) plus TB, giving clinicians a broader baseline from a single visit rather than requiring separate orders at outside labs.

Tests & treats Sliding-scale PrEP
Address
2495 Hospital Drive, Suite 625 Mountain View, CA 94040
Booking
Appointment required
Website
1.4 miles

El Camino Health

Where these reviews come from

Review sources

  • Google254
  • EasySTD5
Rated 3.8 out of 5 from 259 reviews

El Camino Health in Mountain View tests for gonorrhea, chlamydia, syphilis, and HIV on a fee-based scale that accepts Medicare and most insurance, with coverage for PrEP for uninsured patients. Walk-ins welcome, no appointment required.

Tests & treats PrEP
Address
1150 West El Camino Real, Mountain View, CA 94040
Opening hours
  • Monday 8:00 AM – 6:00 PM
  • Tuesday 8:00 AM – 6:00 PM
  • Wednesday 8:00 AM – 6:00 PM
  • Thursday 8:00 AM – 6:00 PM
  • Friday 8:00 AM – 6:00 PM
  • Saturday 8:00 AM – 6:00 PM
  • Sunday 8:00 AM – 6:00 PM
Website
Community health center 1.4 miles

Ravenswood Family Health Network

Where these reviews come from

Review sources

  • Google46
  • EasySTD4
Rated 2.3 out of 5 from 50 reviews

Ravenswood Family Health Network in Mountain View screens for gonorrhea, chlamydia, syphilis, and HIV within a family practice that carries the full range of primary care context. Fees run on a sliding scale, and appointments are required.

Read full overview Show less

Spanish Spoken Fluently, Not Incidentally

Ravenswood Family Health Network delivers STI care directly in Spanish, which means clinical conversations about symptoms, treatment, and follow-up happen in the language a patient communicates most precisely in. No step lost to translation.

Tests & treats Sliding-scale
Address
900 Miramonte Avenue, 2nd Floor Mountain View, CA 94040
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 5:00 PM
  • Tuesday 10:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Best for free testing 1.4 miles

Sutter Health

No ratings yet

Sutter Health in Mountain View tests for HIV, syphilis, gonorrhea, chlamydia, hepatitis B, hepatitis C, and TB. All on a sliding-scale fee open to everyone, with same-visit treatment for bacterial infections. Appointments are required; all services are provided at no fee.

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No Fee Applies to Every Service Here

For anyone paying cash or without a regular provider who can absorb ongoing care costs, Sutter Health in Mountain View covers the full range (testing, treatment, PrEP, vaccines) without a charge attached to any of it. That standing policy holds regardless of what you need that day.

Spanish-Language Care Beyond Basic Translation

Many clinics field Spanish-speaking patients through workarounds that slow the visit and flatten the conversation. Sutter Health in Mountain View delivers care directly in Spanish, so clinical detail, questions, and treatment decisions move at full speed without a layer in between.

PrEP and PEP Prescribed and Managed On-Site

Sutter Health in Mountain View prescribes and manages both PrEP and PEP directly, which means ongoing prevention isn't handed off to another provider: follow-up labs, dosing questions, and refills stay with the same clinical team.

Tests & treats PrEP
Address
701 El Camino Real, Mountain View, CA 94040
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 5:30 PM
  • Tuesday 8:00 AM – 5:30 PM
  • Wednesday 8:00 AM – 5:30 PM
  • Thursday 8:00 AM – 5:30 PM
  • Friday 8:00 AM – 5:30 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 2.2 miles

Santa Clara Valley Dentalcare - Mountain View el Camino Real

Where these reviews come from

Review sources

  • Google5
  • EasySTD1
Rated 3.4 out of 5 from 6 reviews

Santa Clara Valley Dentalcare - Mountain View el Camino Real, in Mountain View, carries federally qualified health center standing: meaning its STI screening fees slide with income, keeping syphilis, gonorrhea, and chlamydia testing within reach for patients across the financial spectrum. No appointment is needed to get started.

Sliding-scale
Address
2486 West El Camino Real, Mountain View, CA 94040
Website
2.5 miles

Planned Parenthood Mar Monte

Where these reviews come from

Review sources

  • Google46
  • EasySTD5
Rated 3 out of 5 from 51 reviews

Planned Parenthood Mar Monte in Mountain View runs a full gonorrhea, chlamydia, syphilis, herpes, and rapid or conventional HIV panel on sliding-scale fees with no appointment required, same-visit treatment for bacterial infections included, and clinical staff communicate directly in Hindi, Spanish, and Tagalog.

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Four Languages Spoken by Clinical Staff Directly

Clinical staff at Planned Parenthood Mar Monte speak Hindi, Spanish, and Tagalog alongside English. Four languages total available for direct clinical conversation. That means medical history, treatment instructions, and prescription guidance are exchanged in the same language across the whole appointment, not relayed through a secondary channel.

Title X Legally Protects Minor Patients' Confidentiality Here

As a Title X-funded clinic, Planned Parenthood Mar Monte is legally required to provide confidential family planning services to minors. The confidentiality isn't a clinic-level courtesy but a federal statutory protection. That distinction governs how records are handled and to whom information can be disclosed.

PrEP Prescribed and Managed On-Site, Not Routed Elsewhere

Many sexual health clinics test and treat but stop short of prescribing ongoing HIV prevention, PrEP requires follow-up labs and renewals that get handed off to a primary care provider. Planned Parenthood Mar Monte prescribes and manages both PrEP and PEP directly, including coverage for uninsured patients through dedicated program funding.

Tests & treats Title X Sliding-scale PrEP
Address
2500 California Street, Mountain View, CA 94040
Opening hours
  • Monday 8:30 AM – 5:00 PM
  • Tuesday 8:30 AM – 5:00 PM
  • Wednesday 8:30 AM – 5:00 PM
  • Thursday 8:30 AM – 5:00 PM
  • Friday 8:30 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Most reviewed 2.7 miles

Instant Urgent Care

Where these reviews come from

Review sources

  • Google1,386
  • EasySTD5
Rated 4.4 out of 5 from 1391 reviews

Instant Urgent Care in Sunnyvale requires an appointment and covers HIV, syphilis, gonorrhea, chlamydia, herpes, hepatitis B and C, and TB on a fee-based, insurance-accepted model. With same-visit treatment for bacterial infections and staff who communicate in Hindi and Spanish.

Read full overview Show less

Hindi and Spanish, With Interpretation Beyond

Instant Urgent Care in Sunnyvale has staff who speak Hindi and Spanish directly, with interpretation services available for other languages, so when a provider explains a medication schedule or a test result, the conversation happens in the same terms the patient already uses to reason about their health.

Prevention Prescriptions Without a Second Stop

Getting bounced to a separate prescribing clinic for PrEP can mean days of delay, and with PEP, delay has direct consequences. Instant Urgent Care in Sunnyvale manages both PrEP and PEP on-site, so prevention doesn't stall between a diagnosis visit and a prescription that never gets filled.

Hepatitis C Treatment Runs Through This Clinic

At Instant Urgent Care in Sunnyvale, a hepatitis C diagnosis doesn't end at a positive antibody result: the clinic prescribes and monitors antiviral treatment directly, meaning a patient's care plan, medication, and follow-up are managed by the same provider who ordered the initial test.

Tests & treats PrEP
Address
970 West El Camino Real, Suite 8 Sunnyvale, CA 94087
Booking
Appointment required
Opening hours
  • Monday 9:00 AM – 6:00 PM
  • Tuesday 9:00 AM – 6:00 PM
  • Wednesday 9:00 AM – 6:00 PM
  • Thursday 9:00 AM – 6:00 PM
  • Friday 9:00 AM – 6:00 PM
  • Saturday 9:00 AM – 5:00 PM
  • Sunday Closed
Website
Community health center 3.4 miles

Valley Health Center - North County

Where these reviews come from

Review sources

  • Google23
  • EasySTD3
Rated 4.3 out of 5 from 26 reviews

Valley Health Center - North County in Palo Alto welcomes walk-in visits for STI screening, covering syphilis, gonorrhea, and chlamydia without requiring an appointment. Federal qualification backs its sliding-scale fees, meaning costs adjust to income for anyone who comes through the door.

Sliding-scale
Address
4151 Middlefield Road, Palo Alto, CA 94303
Website

Free tool · not a clinic

When can I test? Exposure-window calculator

Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.

Detection windows for every 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.

Find your match in 10 seconds

What matters most to you?

What will it cost? Estimate your STD test

Typical out-of-pocket ranges by option, actual cost depends on which tests you need.

  • Public / community clinic

    Free HIV testing is common

    $0–$25
  • Private lab (self-pay)

    Never billed to insurance

    $24–$200
  • At-home kit

    Mailed to your door, private

    From $49
  • Doctor / urgent care

    Often $0 preventive with insurance

    $0–$50 copay

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Rate what mattered to you, no account needed. Reviews are moderated before publishing.

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Every other option

More ways to get tested in Los Altos, CA

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.

At-home STD testing in Los Altos, CA

The nearest testing center is less than a mile away; if you'd rather skip the trip, an at-home kit ships to Los Altos, 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.

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.

Other CLIA-certified labs near Los Altos, CA

Beyond the public testing sites above, these federally certified (CLIA) labs serve Santa Clara 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.

  • Kindbody Silicon Valley

    4756 El Camino Real, Los Altos, CA 94022

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Stanford Anatomic Pathology

    300 Pasteur Dr M/C 5627, Stanford, CA 94305

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Palo Alto HCS

    3801 Miranda Ave Building 100 4th Floor, Palo Alto, CA 94304

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Los Altos. 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.

Clinicians near Los Altos, CA who may help arrange STD testing

Beyond dedicated clinics, 3,491 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Los Altos. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1,499 offer telehealth.

  • Peter Brown, MD Telehealth

    Family medicine · 747 Altos Oaks Drive, Los Altos

  • Simon Humphries, MD Telehealth

    Internal medicine · 811 Altos Oaks Drive, Los Altos

  • Sheila Humphries, MD Telehealth

    Internal medicine · 811 Altos Oaks Drive, Los Altos

  • Fariha Ashraf, MD Telehealth

    Internal medicine · 827 Altos Oaks Drive, Los Altos

  • Eve Ladwig Scott, MD Telehealth

    OB-GYN · 2500 Hospital Drive, Mountain View

  • Sarah Lee, MD

    OB-GYN · 2500 Hospital Drive, Mountain View

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.

Pharmacies near Los Altos, CA

No pharmacy near Los Altos, CA 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.

  • CVS Pharmacy 0.5 mi
    Rx pickupOTC HIV self-testAt-home STI kitsMinuteClinic STI careHPV & Hep B vaccinesCondoms / EC
  • Economed Pharmacy

    1.0 mi
    Rx pickupCondoms / EC
  • Walgreens 1.2 mi
    Rx pickupOTC HIV self-testAt-home STI kitsPrEP/PEP fillsHPV & Hep B vaccinesCondoms / EC
  • Los Altos Pharmacy

    1.3 mi
    Rx pickupCondoms / EC

Showing the 4 closest pharmacies to Los Altos, CA.

Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.

PrEP, prevention & online treatment

Testing is one step. For residents of Los Altos, 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.

Pricing varies by insurance and changes often, confirm on the provider's site. These services are not a substitute for emergency care.

STDs & HIV in Santa Clara County: the local picture

How reported STI rates in Santa Clara County, the county that includes Los Altos, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~18% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#36 of 58 California counties for chlamydia, a higher rate than 38% of the state

Reported STD rates per 100,000, Santa Clara County vs California vs U.S.

Santa Clara County California U.S. ▲▼ = Santa Clara County vs the state average
Infection Santa Clara County California United States
Chlamydia
301.8 5,666 cases ▼ 39%
491.1 492.2
Gonorrhea
110.9 2,083 cases ▼ 42%
190.2 179.5
Syphilis (P&S)
8.4 157 cases ▼ 48%
16.3 15.8
Syphilis (early)
10.4 196 cases ▼ 46%
19.1 16
Syphilis (late/unknown)
29.1 546 cases ▼ 38%
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 Santa Clara County over time (per 100,000)

Chlamydia ▼ 2% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 175 350 2020202120222023

Between 2020 and 2023 in Santa Clara County, chlamydia has risen from 229.4 to 301.8 per 100,000 (32%), gonorrhea has fallen from 117.7 to 110.9 per 100,000 (6%), and P&S syphilis has fallen from 18.3 to 8.4 per 100,000 (54%).

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 Los Altos, CA

Adults uninsured
2.5%
No routine checkup
22.4%
No transportation
3.3%
Binge drinking
11.8%
Frequent mental distress
10.7%
Depression
17.6%
Below poverty line
4%
Primary-care ratio
935 : 1
Santa Clara County
  • Primary-care shortage score 16 / 26
  • Medically Underserved Area · IMU 54.2
  • Social Vulnerability Index · 36th 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 Santa Clara County.

Local HIV snapshot

HIV in Santa Clara County (2023)

People living with HIV
239 / 100k
New diagnoses (2023)
166cases countywide
On PrEP (coverage)
27.2%

Santa Clara County HIV care continuum (2023)

Santa Clara County recorded 10.3 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Santa Clara County residents living with HIV, 77.4% are in care · 70.1% 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 Santa Clara County tests for syphilis.

Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).

17 Sources

Local resources & officials

Data & references

About Los Altos, CA

Los Altos wears its stability comfortably, the long driveways off South San Antonio Road, the settled households, the overwhelming majority of residents who own rather than rent. But stability doesn't automatically translate into easy healthcare logistics, and for the younger adults living here, people in their late teens and twenties navigating new relationships, getting screened quietly competes with genuinely full lives. The household picture here skews toward established, married couples with children, which shapes everything from clinic hours to how testing tends to get framed. Yet a meaningful slice of residents rent in a market where a typical monthly rent rivals a car payment in most American cities, and that cost pressure recalibrates how people weigh discretionary health spending.

Even among the city's high earners, and this is one of the wealthiest communities in Santa Clara County, a standing appointment is easier to hold when schedules cooperate. With labor-force participation sitting well below universal, a substantial share of adults juggle non-traditional hours, school pickups, or caregiving rather than a standard nine-to-five, making after-hours or weekend availability genuinely useful rather than a bonus. With the testing options listed here, someone near Creston or closer to the Whisman Station corridor can likely find something that doesn't require a long detour to fit into an already structured day.

Getting there

How residents reach STD testing in Los Altos, CA

Walkability 12.28 / 20 · Above average

Los Altos scores 12.28/20 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.

Map of 12 STD & STI testing locations in Los Altos, California, EasySTD

ZIP 94024 snapshot

Residents
23,673
Median age
47.8
Median income
$250,001

ZIP-level Census figures for the wider 94024 area around Los Altos: a single ZIP can span several communities, so they describe the area, not Los Altos alone.

Los Altos sits in Santa Clara County, ZIP 94024. Local context that shapes where residents test:

Local landmarks

  • Los Altos History Museum
  • Paul Shoup House
  • The Foster Museum
  • Sunnyvale Heritage Park Museum
  • McKenzie Park
  • Cuesta Park

Neighborhoods & communities

  • Mountain View
  • Castro City
  • Whisman Station
  • Creston
  • Sunnyvale
  • Charleston Meadows
  • Plaza del Sol
  • Fairmeadow

Major routes

  • CR G5 (Foothill Expressway)
  • South San Antonio Road
  • I 280 (Junipero Serra Freeway)
  • North San Antonio Road
  • CA 82 (West El Camino Real)

STD testing in Los Altos, CA: screening, costs & privacy

Everything to know before you test in Santa Clara 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 when

CDC screening schedule + each infection's detection window

Who should get tested, and how often

Based on current CDC screening recommendations.

GroupTestsHow 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 a Los Altos-area provider.

InfectionEarliest reliable testSample
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

What each STD test costs

Medicare 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 Los Altos 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.

TestReference priceCPT / 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 California

Minor 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.

Learn more about confidential STD testing in California

Source: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.

STD testing FAQs for Los Altos, CA

Answers to the questions people ask most before getting tested.

Can I get tested near Sunnyvale, CA instead?

Possibly, Sunnyvale, CA is close; compare it by distance against Labcorp.

Does Medicaid cover STD testing?

Medicaid generally covers STD testing, and public clinics test for free regardless of coverage.

Is there free STD testing near Los Altos, CA?

Yes, Sutter Health (1.4 mi) offers free testing, and public clinics serve the uninsured.

Which tests are offered near Los Altos, CA?

Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.

How common is chlamydia in Santa Clara County?

About 302 cases per 100,000 residents (2023), below the California average.

Where do I get PrEP around Los Altos, CA?

PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.

Can someone under 18 get tested in California without a parent?

In California, people under 18 can consent to confidential STD testing and treatment on their own.

Should both partners test for chlamydia?

Yes, partners should test and be treated together to avoid passing it back and forth.

Can I trust an at-home result?

Yes, from a reputable lab, confirm any positive with a clinician for treatment.

I tested negative, am I fully in the clear?

Likely yes, if you were past the window period; otherwise retest, and keep up routine screening with new partners.

Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.