There is no hard and fast rule for saving medical payment records. Certainly, they need to be kept while the medical services that are summarized on the forms are in the process of payment by Medicare and supplemental insurance policies.
After that, it is your call. One suggestion, storage space permitting, is to save medical payment records for three to six years as you would tax deduction records.
That way, if you need to refer back to them, they are there. You also might keep these medical records if you claimed them as a deduction on your taxes. The records can also provide you with a medical history.
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