The more than 450 participants in CMS’ largest accountable care demonstration, the Medicare Shared Savings Program, netted $2.1 billion in savings to Medicare in 2023 and earned a total $3.1 billion in performance payments, the highest to date, CMS’ Innovation Center announced Tuesday (Oct. 29). Accountable care organizations (ACOs) led by primary care physicians yielded significantly higher net per capita savings than those with a smaller share of PCPs, which CMS says underscores how key primary care is to the...