Returning overpayments.
D003669:Deductibles and Coinsurance / Q000331:legislation & jurisprudence*; D006801:Humans; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence*; D007357:Insurance, Physician Services / Q000331:legislation & jurisprudence*; D011216:Practice Management, Medical / Q000191:economics* / Q000331:legislation & jurisprudence; D013714:Tennessee