Specifically what kind of insurance does she have? Medicare ? What kind? Medicare Advantage plan? Traditional Medicare? Does she have Medicaid too?
Medicare does not cover most dental procedures - extractions is one that isn't covered however if your Mom HAS to have it done in a hospital because it is MEDICALLY NECESSARY, Medicare Part A will pick up some of the cost but it has to be, in this case the where, not the what, MEDICALLY NECESSARY and the doctors (dental surgeon) has to go to bat for this, be in network or accept Medicare assignment, to save her money, and know the correct codes to bill Medicare.
https://www.medicare.gov/coverage/dental-services
She will still have to pay her part of the cost - her co-pays and the cost of the extractions.
If it is NOT medically necessary that she have it done in a hospital, then she will pay the whole cost to have it done - She may have to find an oral surgeon that will do it if there is any risk others may not be willing to take because of her medical condition.
What types of medical professional are making this call?
What's the call being made here for - her care or money - whose money - hers or theirs?
If I were your Mom, I would have a conversation with all the docs involved, get something in writing as to their recommendations and go from there. The primary would be the ones that are in charge of whatever medical condition that she has that is causing this second guessing and the type of professional that will be removing the teeth.
Don't forget that she has to eat afterwards so some type of prosthedontal work might be also necessary -
It's Always Something . . . . Roseanna Roseannadanna