HC Reform Update by Mark Sanna: As insurers try to steer more patients to doctors deemed less expensive or judged to provide better care, physicians and medical organizations are questioning the accuracy of these evaluations. In a sharply worded letter sent Monday to the nation’s largest health insurance companies, the AMA and 47 medical societies called on the insurers to make public how they assessed doctors’ performance and to allow the insurers’ methods to be reviewed by independent parties.