On your next commute, look around. According to recent research by Leavitt Partners, 1 of every 10 Americans (that’s 10% for the math challenged) is now covered by an Accountable Care Organization (ACO). What is an ACO you ask? Read this. There are now 923 public and private ACOs operating in the US, covering more than 32 million lives. ACOs were created to share in the savings they create for Medicare patients and if you want to dig deeper, here is a list of 110 ACOs “you need to know” complied by Becker’s Hospital Review. As ACOs grow, so will their negotiating power and influence. All we are saying is “keep an eye on it” and don’t let the math (Chevy Chase clip) stand in the way.