From USC archive:
St. Vincent's Hospital, 1937
What got me was the caption, saying this was on Sunset and Beaudry. I've always known St. Vincent's (Now called St. Vincent's Medical Center) to be on 3rd street, but apparently it moved there in 1971.
According to their website, St. Vincent's is actually the first and oldest hospital in LA, founded by the Daughters of Charity Catholic order of nuns back in 1856. Today in the vicinity of Sunset and Beaudry, there's a convent there but it's a different order of nuns, I don't remember what they're called.