Occupational Health Service (OHS) at ZSFG

OHS, also known as Employee Health Service (EHS), provides a variety of occupational safety centered services to employees of City and County of San Francisco (CCSF). We also provide onboarding medical screenings for new CCSF employees through Human Resource Departments.

In this page:

    For All DPH New Hires, a Two-Step TST (4 Visits) is Required

    OHS Building 9
    “OHS Building 9” by Kai Chen, CC BY-NC-ND
    OHS is now on SF.gov!

    Welcome to Occupational Health Service (OHS) at Zuckerberg San Francisco General Hospital and Trauma Center's new website.


    Learn about the services that OHS provides to new & existing employees on ZSFG campus and to City & County of San Francisco here.


    Other Services and Useful Links/Forms:

    You are amazing!

    98% of DPH/ZSFG staff are up-to-date with COVID-19 vaccines as of March 2022. That equals to 37,486 doses!


    Thank you!

    “98%” by Huen, William, CC BY-NC-ND


    ► Location:

    • Zuckerberg San Francisco General Hospital Campus, Building 9, Room 115 (campus map)


    ► OHS Hours:*

    • Monday/Tuesday/ Wednesday/Friday: 7:30AM - 11:00AM / 12:30PM - 4:00PM ***

    • Thursday: 7:30AM - 11:00AM / 1:00PM - 4:00PM **


    * The clinic is closed on weekends and on City & County Holidays.

    ** No TB Skin Testing on Thursdays.

    *** Drop-in ends at 3PM daily.


    Zuckerberg San Francisco General Hospital and Trauma Center
    Occupational Health Service (OHS)
    1001 Potrero Avenue, Building 9, Room 115
    San Francisco, CA 94110
    View location on google maps

    At intersection of 23rd St. and Utah St.


    OHS Mainline:

    Fax: 628-206-3669

    COVID-19 Hotline
    Blood & Body Fluid Exposure Hotline:

    Available 24 hours, 7 days a week