title: Providers back bill alerting Medicare patients about observation stays.
authors.forename: Virgil
authors.initials: V
authors.lastname: Dickson
mesh_terms: D033161:Government Regulation; D007349:Insurance, Health, Reimbursement / Q000331:legislation & jurisprudence*; D006278:Medicare; D014481:United States; D057832:Watchful Waiting / Q000191:economics*