It is a paradox. Although physicians do not control patient behavior, physician effectiveness is increasingly determined by patient behavior. There is a trend toward physician ratings being based on specific metrics related to the management of chronic illness. Such markers include glycosylated hemoglobin levels, blood pressure, body mass index, and smoking rates, along with other factors known to affect risk of morbidity and mortality. However, the physician contribution to changing the actual outcomes is limited.
Hershberger PJ, Bricker DA. Who Determines Physician Effectiveness?. JAMA. 2014;312(24):2613-2614. doi:10.1001/jama.2014.13304