PIAA Data Sharing Project

Learning from Medical/Healthcare Professional Liability (MPL/HPL) Claims and Trends

Launched in 1985, the Data Sharing Project (DSP) is the largest ongoing independent collaborative database of medical professional liability (MPL) claims and lawsuits. PIAA regular and industry member companies, both domestic and international, have shared hundreds of thousands of physician and dental professional claims data. In addition, beginning in 2016, healthcare professional liability (HPL) claims are being collected and incorporated into the DSP.

The DSP provides key information for MPL insurance companies and stakeholders with an interest in patient safety and MPL claim trends. The DSP provides the necessary statistical information needed to enhance risk management in medicine and to track MPL claim costs. Data from the DSP can be used to study claim patterns and pinpoint the areas of medical practice most vulnerable to MPL lawsuits. In addition, the MPL expense and indemnity information maintained in the DSP provides a valuable tool in furthering efforts to pursue and advise effective medical liability reform at all levels of government.

Two biannual MPL DSP reports, the Closed Claim Comparative (CCC) and the Specialty Specific Series (SSS), feature MPL claim data submitted to the DSP by PIAA participating member companies. PIAA member companies, academic institutions, nonmembers, and others with MPL interests incorporate information from the DSP reports into their own educational materials through data query requests, citation requests, and collaboration opportunities. The data is used to enhance patient safety through the education of physicians and other healthcare practitioners.


To request or cite data from the DSP, click on the appropriate form and submit.

Data Request Form (online)
Data Request Form (print version)

Citation Request Form (online)


DSP Reports are published annually or biannually and are available for purchase – more than 20 major medical specialties are represented in the reports.

MPL Closed Claim Comparative (MPL CCC)

MPL Specialty Specific Series (MPL SSS)