Accounts receivable services for others; review of healthcare provider administrative procedures, coding, billings and clinical records to identify underpayments and unbilled accounts receivable; data management for healthcare providers, namely, management of patient information in the nature of contact and insurance information for use in patient registration, insurance and third-party payor verification, insurance claim submission and improving cash collections; administrative patient intake services, namely, contacting patients to verify appointments, providing information about estimated payments and account balances, obtaining patient personal information, verifying insurance information, and consulting in the field of medical billing and collections management; operation of telephone call centers for others; billing statement processing for others