Free HIV testing and PrEP in Houston

Before you go

Each location below comes from the provider's own website, and we checked each one on Nov 5, 2026. Clinic hours and funding change, and in 2025 local reporting said some clinics had scaled back because of uncertainty over federal funding. Please call ahead, especially if you are traveling a long way. This page is general information and not medical advice, so talk to a clinician about your own situation.

If you think you were exposed to HIV in the last 72 hours, act now. PEP is an emergency medication that must start within 72 hours, so call one of the clinics below that offers it, or go to an urgent care or emergency room.

Montrose Center

The Montrose Center, at 401 Branard St, offers free walk-in testing Monday through Thursday from 9 AM to 2 PM. It provides rapid HIV, hepatitis C and syphilis tests and TB screening. It does not offer a full STI panel or PrEP, so go elsewhere for those. Call 713-529-0037 with questions.

Legacy Community Health

Legacy offers no-cost testing at participating locations. To book PrEP or PEP, call 713-814-3300. For general help, call 832-548-5000.

• Wellness Bar, 120 Westheimer Rd, Suite F: 713-814-3730. HIV and STI testing, PrEP, PEP, DoxyPEP and HIV care. Monday 10 AM to 7 PM, Tuesday through Thursday 8:30 AM to 5:30 PM, Friday 7 AM to 4 PM.
• Montrose, 1415 California St: walk-ins and appointments. Monday through Wednesday 8 AM to 5 PM, Thursday 8 AM to 7 PM, Friday 8 AM to 6 PM, Saturday 8 AM to 4 PM. A federal listing shows different hours, so call first.
• Gulfton Dashwood, 5420 Dashwood Dr, Suite 102: Monday through Friday 8 AM to 5 PM.
• Santa Clara, 5616 Lawndale St: Monday through Friday 8:30 AM to 5 PM.
• Pasadena Southmore, 1951 Southmore Ave: Monday through Friday 8:30 AM to 4:30 PM.
• AmistadesHTX, 5420 Dashwood Dr, Suite 201: 832-730-4423. Monday through Thursday noon to 6 PM, Friday noon to 5 PM, Saturday noon to 4 PM. Call to confirm.

Avenue 360 Health + Wellness

Avenue 360 offers free rapid HIV, hepatitis C, syphilis and pregnancy tests, and walk-ins are welcome. PrEP is by appointment.

• Heights, 2150 West 18th St, 3rd Floor: 713-426-0027. Monday through Friday 8:30 AM to 4:30 PM.
• Midtown, 2920 Fannin St: 713-426-0027. Monday through Friday 8:30 AM to 4:30 PM.
• Southwest, 14095 S Main St: 832-830-8345. Wednesdays.
• Humble, 18842 S Memorial Dr, Suite 206: 281-570-2525. Wednesdays.

Avenue 360 says testing at its Spring Cypress site is suspended, so do not go there for a test.

Allies in Hope

Allies in Hope offers free testing by appointment only, so call first at 713-623-6796. Its prevention team is at 832-234-7737. PrEP is available at Midtown, along with nPEP, which must start within 72 hours of exposure. It also runs a mobile unit and offers home test kits.

• Midtown, 2328 Fannin St: Monday 9 AM to 7 PM, Tuesday through Friday 9 AM to 5 PM, and first and third Saturdays 9 AM to 2 PM.
• Southwest, 6260 Westpark Dr, Suite 100: Monday 9 AM to 5 PM, testing only.

Public health options

The Houston Health Department has offered PrEP, nPEP and free HIV and STI testing at its health centers. The most recent city notice we could find dates from 2022, so call 832-393-5010 before you go. Harris County Public Health also runs an HIV and STI prevention program. You can search for other nearby sites using the CDC's locator at gettested.cdc.gov.

What is PrEP, and how do I start?

PrEP is medicine that lowers your risk of getting HIV. It needs a prescription and regular follow-up tests, so the first step is an appointment. You can book at Legacy on 713-814-3300, at Avenue 360 on 713-426-0027, or at Allies in Hope's Midtown clinic on 713-623-6796. Ask about costs when you book, since each provider handles insurance and help with payment in its own way. If you test positive for HIV, these same clinics can connect you with treatment, and you do not have to work it out alone. The Montrose Center offers counseling, and our Health + Help Resources page lists more support.