Advantage PPO 以前就有。

https://www.kff.org/medicare/issue-brief/medicare-advantage-2022-spotlight-first-look/
  “HMOs account for about six in ten (59%) of all plans offered in 2022, a slight decline from prior years where they accounted for about two-thirds of all plans offered. The availability of local PPOs has increased rapidly over recent years. In 2022, more than one-third of plans (37%) offered are local PPOs, compared to a quarter in 2018. Between 2021 and 2022, the number of regional PPOs has remained constant, while the number of private fee-for-service plans has continued to decline.”