This data set provides a summary analysis of Open Payments data, grouping total payments received by doctors at hospitals around the United States. Our goal was to compare U.S. hospitals based on the percentage of their affiliated physicians who receive payments of various sizes from pharmaceutical and medical device companies.

ProPublica's analysis of the Open Payments data was based on physicians’ primary hospital affiliations as reported by Medicare's Physician Compare tool in December 2014. This means our analysis excludes physicians who don't participate in Medicare and don't admit many patients to the hospital. The complete methodology is available below.

Detailed information about specific payments made to individual providers, including custom analysis of providers associated with individual hospitals, is available here.