There is never any question about insurance paying for my annual breast MRI, because of my cancer history. However, we have a very high deductible insurance plan, and most years we don't come close to meeting it, so in that case I request the cash price.
I had my last MRI in December and the cash price was $650, plus the radiologist sends a separate bill (about $125). That's a bit high, but the imaging center I go to is associated with a hospital so there are some extra fees.
$350 sounds like a great deal, though you might want to check about that radiologist's fee.
That last MRI
if billed through insurance would have been $2500, so I'm not complaining.