The theory and methodology of provider profiling

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Abstract
Physician profiling is the comparison of physician practice patterns to determine the existence and effects of significant differences in outcomes. To optimize care quality, these comparisons can be used to influence provider behavior through awareness when outcomes are poor or do not warrant provider expenditures. To maximize the value of such a technique, the underlying bases for comparison and the uses of derived data must be understood. Several factors must be considered or controlled for when determining comparable providers. Additionally, the worth or significance of findings must also be understood. This paper seeks to provide information in these two areas for the benefit of those responsible for managing care at all levels.