Determines patient invoice by capturing services noted in patient chart; clarifying services with physicians.Identifies responsible party by examining patient record.Issues invoice by entering service data; calculating charges; mailing invoices.Resolves billing issues by discussing contract with third-party payer; explaining insurance contract with patient; negotiating settlement.Maintains patient and invoice files by entering and adjusting data.Provides billing information by collecting, analyzing, and summarizing third-party billings, accounts pending.Ensure that patients claims are processed based on the services, and submitted to the authorities in due time.