A method and system for gathering, collating and sorting information items distributed among a plurality of databases containing information items regarding physician treatment/billing claims, insurance payments, and provider/patient relations over at least one communication networks is disclosed. The method comprises the steps of creating an intermediate data base containing information items related to physician treatment/billing claim data, insurance payment data, and insurance provider. The information items are further cross-referenced with regard to at least one common information item. The information items in the intermediate data base are then filtered using at least one selected information item contained in the intermediate data base to create at least one file containing cross-referenced data items relating to the filtering criteria, and reporting a selected one of the file. In another aspect of the invention, the created files may be selectively filtered using additional filter criteria.