UCSF Health St. Mary's Hospital ER wait time
Emergency room · San Francisco,
CAFaster than 38% of US ERs · #2,542 of 4,081
18m slower than the US median
This ERCA 2h 54mUS 2h 28m
450 Stanyan St, San Francisco, CA 94117
Patients sent home from the emergency room at UCSF Health St. Mary's Hospital in San Francisco, California spend a median of 2 hours 46 minutes there, from arrival to leaving. That's 18 minutes more than the national median of 2 hours 28 minutes, and faster than the California median of 2 hours 54 minutes. 1% of patients left before being seen.
Questions
How long is the wait at the UCSF Health St. Mary's Hospital ER?
The median patient who is sent home spends 2 hours 46 minutes in the ER, from arrival to departure (CMS, Oct 2024 to Sep 2025). Half of patients spend longer.
Is that a long wait?
It's longer than the US median of 2 hours 28 minutes. It's faster than 38% of the 4,081 US ERs that report this number.
Where does this data come from?
From CMS Care Compare, measure OP-18b. How this works.
Not medical advice. If you're having a medical emergency, call 911.
