In order to see a list of patients with outstanding balances, use the Accounts Receivable Summary report.
It is located in the Main Menu -> Reports -> Practice Analysis.
In the Standard Reports section, select the period of time and location.
Click Select report -> Financial -> Accounts receivable summary -> select the type of the report. In the example, below we'll use the By Patient report.
You'll receive a PDF for all patients who have an outstanding balance include the outstanding totals.
To receive patient statements which can be mailed to the patient to collect payment, use the Aged Account Receivables report. It's located in Standard Reports -> Financial -> Aged account receivables. In the example, we'll again use the report By Patient.
You can print the PDF to mail the individual patient statements.