Results of a study showed that the "targeting" of malpractice-prone physicians from past paid-claims histories is only moderately accurate. It is possible, however, to gather more detailed information about physicians in addition to claims history and premium class that might lead to a more accurate prospective identification of those who will incur future paid claims.
John E. Rolph,
Merit Rating for Physicians’ Malpractice Premiums: Only a Modest Deterrent,
54 Law and Contemporary Problems
Available at: http://scholarship.law.duke.edu/lcp/vol54/iss2/4