STD/HIV Clinics and Testing

​STD/HIV Testing

A $25 registration fee (cash and checks only) is expected at time of service. Please see fee schedule.
No appointment necessary! Walk-in clinic.


Tuesday TESTING Only Clinic: No doctor is available. Standard testing includes Rapid HIV (finger-stick), chlamydia and gonorrhea (urine specimen). Testing for syphilis, hepatitis C, and/or herpes will require an additional fee.

Thursday SYMPTOM Clinic: We will see patients with symptoms of an STD, such as pain, itching, oozing, rash, and patients who need medicine or need to see a doctor, and will include testing if necessary. If you only want to be tested for STDs/HIV and do not need to see a doctor, please come on our Tuesday Testing Only Clinic.

STD Clinic FAQ

**If you have been a victim of sexual assault please contact the Keller Center at (650) 573-2623.

HIV Testing Van

Testing On Demand

Testing on Demand means that you can call the testing van counselors to arrange a time and location to meet for a test or results.  Our services include HIV Screening (rapid), Hepatitis C (rapid) and Syphilis screening, and needle exchange.  We offer confidential and anonymous testing.  Call us today at (650) 619-9125.

Other testing locations

In San Mateo County

Outside San Mateo County

Pre-exposure prophylaxis (PrEP)

Pre-exposure prophylaxis, or PrEP, is a way for people who do not have HIV to help prevent HIV infection by taking a pill every day. The pill contains two medicines that are also used, in combination with other medicines, to treat HIV. When someone is exposed to HIV through sex or injection drug use, PrEP can help stop the virus from establishing a permanent infection. When used consistently, PrEP has been shown to greatly reduce the risk of HIV infection in people who are at substantial risk. PrEP is much less effective when it is not taken consistently.

PrEP is a powerful HIV prevention tool, and can be combined with condoms and other prevention methods to provide even greater protection than when used alone. People who use PrEP must commit to taking the drug daily and seeing their health care provider every 3 months for HIV testing and other follow-up.

Check out more information about PrEP basics and why it may make sense for you. Más información sobre PrEP

HIV Positive Services

We provide comprehensive medical care, as well as connections to dental care, food services, counseling, housing and emergency financial assistance. We also help tell your partners that they should get tested—anonymously. We also run support groups in English and Spanish. No client will be denied services because of inability to pay.

The following organizations also provide important information and services:

  • CDC National HIV/AIDS Hotline: 1-800-CDC-INFO (232-4636)
  • AIDS/HIV Nightline: 1-800-628-9240 or 415-434-AIDS (434-2437)
  • HIV Health Info Line:  1-800-822-7422 or 415-558-9051
  • Women Alive:  1-800-554-4876
  • Crisis Management Hotline: 1-800-273-TALK or 1-800-784-2433

STD/HIV Community Board

The San Mateo County HIV Program Community Board advises the San Mateo County STD/HIV Program and provides ongoing direction about program policy, planning and development of all HIV/AIDS prevention and care services for San Mateo County residents. 

The San Mateo County Youth Commission, in conjunction with the HIV Community Board, produced this video, featuring HIV+ residents of San Mateo County:

San Mateo County Is 'Greater Than AIDS'

San Mateo County 'Greater Than AIDS' campaign raises awareness about HIV/AIDS, encourages HIV testing and educates people to help reduce the stigma surrounding STDs.
Greater Than AIDS is a leading national public information response focused on the U.S. domestic epidemic​. Learn more here.