Mercyone Waterloo Medical Center ER wait time
Emergency room · Waterloo,
IA
Faster than 10% of US ERs · #3,651 of 4,081
1h 15m slower than the US median
This ERIA 2h 00mUS 2h 28m
Left before being seen10%
3421 West Ninth Street, Waterloo, IA 50702
Patients sent home from the emergency room at Mercyone Waterloo Medical Center in Waterloo, Iowa spend a median of 3 hours 43 minutes there, from arrival to leaving. That's 1 hour 15 minutes more than the national median of 2 hours 28 minutes, and slower than the Iowa median of 2 hours. 10% of patients left before being seen.
Questions
How long is the wait at the Mercyone Waterloo Medical Center ER?
The median patient who is sent home spends 3 hours 43 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 10% 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.