Scarlet
Let go of some worries.
For instance, Medicare payment cycle. Medicare determines the percentage they will pay, then your Mom's supplemental insurance (like blue cross or united health care, if she has it) usually pays the balance after her deductable is satisfied. I receive a detailed statement of charges and payments from medicare and my doctor about 30 days after the visit. It would show if I owe anything to the doctor on the medicare statement. I always wait to let the system 'shake out' before I get my wallet out.