The only time you should "get money back" from Medicare for an ultrasound is when you use a provider that does not accept assignment.
Most medical providers do accept Medicare assignment, file claims direct with Medicare and they receive payments direct from Medicare. If you have a supplement plan Medicare sends your approved claim direct to your gap carrier who will send their payment to your provider.
Most medical providers do accept Medicare assignment, file claims direct with Medicare and they receive payments direct from Medicare. If you have a supplement plan Medicare sends your approved claim direct to your gap carrier who will send their payment to your provider.