Does anyone know what the medicare guidelines are for the following:

We have a couple of cardiac surgeons that do not like to dictate their op notes. Recently one of them has started having the assistant surgeon dictate the op note. And....the assistant surgeon is the one signing off on the op note.

This does not look right to me. If the assistant surgeon does dictate the op note, should there be some kind of statement on the report stating that it was the assist surgeon dictating the report. I would think that it would still have to be the primary surgeon that signs off on the report.
If anyone has any imput on this i would be grateful.

Is there anyplace i can go to get documentation on this issue?
Thanks to all.