Physician Characteristics and Distribution contains physician data on more than 1,000,000 U.S. physicians, making it the most accurate and complete statistical resource available. Historical and current physician data also provide an essential base for health services research, program planning and policy development. This information-rich resource provides users with the most accurate and complete collection of physician statistics on physician trends, physician specialty, analysis of professional activity and physician supply. Quintessential Source of Comprehensive Physician Statistics This physician data was assembled from more than 1 million U.S. physicians. It was gathered directly from the AMA Physician Masterfile and provides the most credible source of physician statistics available to professionals compiling data. Uses could include:: Historical and current physician trends Health services research Program planning Policy development