A system comprises an expected bad debt generator for generating probabilities of bad debt based on payer, types of services and or products rendered, and account information; a contract modeling engine for generating contractual adjustment factors based on contracts between payer and service providers, a gross net conversion generator for generating gross net conversion factors based on payer and account information; a priority calculating engine for prioritizing accounts and batches of accounts; a collector assignment engine for assigning the accounts to one or more collectors based on a predetermined collector assignment algorithm; an account batching engine for grouping accounts into batches for the purpose of best utilizing payer contacts; and a worklist generator for generating a worklist for each collector, the worklist identifying a prioritization order of one or more payers for the collector to contact to collect debt, the prioritization order being based on a predetermined prioritization algorithm.