Health Affairs April 21, 2016
As of the end of January 2016, Leavitt Partners, in partnership with the Accountable Care Learning Collaborative, has identified 838 active Accountable Care Organizations (ACOs) (see Figure 1) across the country with service areas in all 50 states and the District of Columbia (see Figure 2). Collectively, the count of ACOs has grown by 94 over the past year, an increase of 12.6 percent. Growth has continued to vary across the country and across public and private health insurance programs, with significant growth in most population centers but increasing activity in some rural areas.
Figure 3 includes counts of ACOs by hospital referral region (HRR); it shows that some markets have significant activity among providers in the region while accountable...