Chiang-Hua Chang, PhD

Using data from 632 primary care practices, the authors show that the CMS Practice Assessment Tool has adequate predictive validity for participation in alternative payment models.

Medicare beneficiaries attributed to small practices in accountable care organizations (ACOs) achieve greater savings than beneficiaries attributed to large practices in ACOs.

This article compares clinical and utilization profiles of Medicare patients who are attributed to provider groups with those of patients unattributed to any provider group in accountable care organization models.