The number of accountable care organizations (ACOs) has increased by 38 percent in the past six months, with 221 models identified in 45 states, according to a study by Leavitt Partners. http://leavittpartners.com/wp-content/uploads/2012/06/Growth-and-Dispersion-of-ACOs-June-2012-Update.pdf
Out of the 221 ACOs, 148 are single-provider ACOs, 67 percent, followed by 43 multiple-provider ACOs, 19 percent, according to the report. The other models included 17 insurer ACOs and 13 insurer-provider ACOs.
The number of hospital-sponsored ACOs has continued to increase, from 99 in late 2011 to 118, while ACOs sponsored by physician groups has almost doubled, from 38 to 70, the report found.
The week, 89 new ACOs were announced: