The Medicare Shared Savings Program comprised 480 ACOs in 2017, according to CMS.
Here are eight statistics on MSSP ACOs this year from CMS' Fast Facts.
1. MSSP ACOs covered 9 million beneficiaries in 50 states, the District of Columbia and Puerto Rico.
2. Ninety-one percent of MSSP ACOs, or 438, committed to one-sided risk under Track 1 designation.
3. Six ACOs committed to two-sided risk under Track 2 designation.
4. The remaining 36 are two-sided risk ACOs under Track 3 designation.
5. Sixty-two percent of MSSP ACOs cover a large metro population, whereas 12 percent cover a small metro population. Twenty-six percent cover an area with metro and rural populations.
6. The city with the most MSSP ACOs is Atlanta with 135. Seattle has the fewest with nine.
7. Fifty-six percent of MSSP ACOs include individual practice networks, while 36 percent include group practices
8. Fifteen percent of MSSP ACOs comprise a rural health clinic, and 11 percent have a critical access hospital.