Four major insurers announced they will align their pay-for-performance programs with federal meaningful-use criteria for electronic medical records. However, it is not clear in all cases if those changes will mean increased P4P payments. Either way, the payers' moves, depending on the success and spread of their programs, could accelerate implementation of meaningful use. According to Health Data Management, the payers are Aetna (NYSE: AET), Highmark, UnitedHealth Group (NYSE: UNH) and WellPoint (NYSE: WLP). FierceHealthPayer