Wait times vary on MRI's depending on where you are, but in my limited experience, my wife or anyone else could have walked in and had an MRI at our local hospital yesterday, their afternoon was free. My mom had to wait a week to ten days to get one, in South-Central Iowa, they have a mobile unit that serves many of the hospitals down here one day every other week. There are plenty of MRI machines within an hour drive of us, so if you are waiting more than two weeks for an MRI, you need to check around at hospitals in medium size town like Ottumwa, Pella, Oky or Bloomfield, all have full time MRI machines and staff.