If you are looking for testing sites in San Francisco go to: https://datasf.org/covid19-testing-locations. Per DPH'S tweet on January 7, SFDPH@SF_DPH
Unauthorized COVID-19 test sites are popping up throughout the City. We know demand for testing is high. Please use authorized testing sites or FDA-approved rapid tests. Go to your provider first, if you have one, or check out testing sites in SF at http://sf.gov/gettested.
Caveat: Be wary of those not listed and of any site asking for personal information such as Social Security Numbers, drivers’ license information, etc.
Stay safe and well.