Measuring the performance of individual physicians by collecting data from multiple health plans: the results of a two-state test.

Quality measurement and reporting have emerged as important tools that providers, health plans, and other stakeholders can use to identify gaps in quality and focus resources on improving care. Yet identifying, measuring, and evaluating the care that physicians and other health care providers deliver is complicated by limited data, privacy concerns, and the challenge of trying to compare data from diverse sources. This article describes an effort to pilot-test in Florida and Colorado a consistent approach to individual physician performance measurement using data compiled from multiple health plans. Our approach could be used as the basis for making comparable performance information available nationwide. Additional efforts are needed to address key issues, including ways to effectively engage providers in the use of performance information.