In a system and method for processing data, a user interface enables a user to enter mapping data to enable incoming data to be converted to a common data format. A database stores the mapping data and data quality rules, and a receiver receives data from a data source. The processor applies the data quality rules to the common format data to identify any potential errors in the common format data and notifies the user of any potential errors found in the common format data. The data rules may include data structure rules and/or data trending requirements based upon data trends or norms. The data source may be an employer, insurance company or other entity. The data may include insurance claim data, medical data and/or prescription data and/or eligibility and/or occupational and non-occupational data.