several chronic conditions, requiring frequent visits and regular gnostic tests. Following her last visit, she informed Dr. Elton her ployer-sponsored insurance plan had changed, and one of the isequences was that Darla would have to pay higher out-of- cket costs for her visits and diagnostics. Dr. Elton has asked you eview Darla's prior billing statements. Upon doing so, you covered Darla has outstanding bills for her last three visits (with oldest reaching 120 days past due)