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STD Testing in Ontario, California

4 STD and HIV testing locations in Ontario, including 1 that list free testing.

Verify with the clinic before visiting. Hours, services, fees and appointment rules change. Call ahead to confirm. This directory is for information only and is not medical advice. In an emergency, call 911.

Parktree Community Health Center – Archibald Medical

2680 E Riverside Dr, Ontario, CA 91761 · (909) 469-9013
Free testing listedSliding scaleChlamydiaGonorrheaSyphilisHerpesHIVRapid HIVHepatitis CHepatitis B
Mon 8:00am – 5:00pm; Tue 8:00am – 5:00pm; Wed 8:00am – 5:00pm; Thu 8:00am – 5:00pm; Fri 8:00am – 5:00pm

Inland Empire Womens Center – Ontario Office

3130 Inland Empire Blvd, Bldg B, Ontario, CA 91764 · (909) 490-3110
ChlamydiaGonorrheaSyphilisHerpesHIVHepatitis CHepatitis B
Mon 8:00am – 5:00pm; Tue 8:00am – 5:00pm; Wed 8:00am – 5:00pm; Thu 8:00am – 5:00pm; Fri 8:00am – 5:00pm

Parktree Community Health Center – Sultana Medical

1556 S Sultana Ave, Ontario, CA 91761 · (909) 469-9017
Sliding scaleChlamydiaGonorrheaSyphilisHerpesHIVRapid HIVHepatitis CHepatitis B
Mon 8:00am – 9:00pm; Tue 8:00am – 9:00pm; Wed 8:00am – 9:00pm; Thu 8:00am – 9:00pm; Fri 8:00am – 5:00pm

San Bernardino County Department of Public Health – Ontario Health Center

150 E Holt Blvd, Ontario, CA 91761 · (800) 722-4777
Sliding scaleChlamydiaGonorrheaSyphilisHIVHepatitis CHepatitis B
Mon 8:00am – 5:00pm; Tue 8:00am – 5:00pm; Wed 8:00am – 5:00pm; Thu 8:00am – 5:00pm; Fri 8:00am – 5:00pm

Community health centers in Ontario

These federally funded health centers (HRSA) offer primary care, usually on a sliding fee scale. Their STD testing services are not confirmed in our data. Call to confirm STD testing.

Unicare Community Health Center - Ontario 1151

1151 E Walnut St, Ontario, CA 91761 · (909) 467-1425
Unicare Community Health Center, INC · Community health center (HRSA). Call to confirm STD testing.

Unicare Community Health Center, Inc.

437 N Euclid Ave, Ontario, CA 91762 · (909) 988-2555
Unicare Community Health Center, INC · Community health center (HRSA). Call to confirm STD testing.

Frequently asked questions

Where can I get STD testing in Ontario, CA?

This page lists 4 STD/HIV testing locations in Ontario, CA from the CDC NPIN directory, plus 2 community health centers that may offer testing. Call ahead to confirm services and hours.

Is there free STD testing in Ontario, CA?

1 of the 4 listed locations say they offer free STI and/or HIV testing. Eligibility can depend on age, income or residency. Many health departments and community health centers also use sliding-scale fees.

Do I need an appointment?

Appointment rules vary by location. Call before you go.

Can I get a rapid HIV test?

2 locations here list rapid HIV testing, which usually gives results during the same visit.

Which tests should I ask for?

Common tests include chlamydia, gonorrhea, syphilis, HIV and sometimes herpes or hepatitis. Which ones you need depends on your situation, so a clinician can help you decide. CDC recommends everyone ages 13 to 64 get tested for HIV at least once.

Is STD testing confidential?

Health care providers must keep your health information private. Some public health clinics offer anonymous HIV testing. Ask the clinic about their privacy policy.

Data: CDC NPIN and HRSA. Page built 2026-11-03.