Green Health & Wellness Medicare Advantage is taking over – Healthcare Economist – GWC Mag gwcmagOctober 20, 2023055 views Via the Kaiser Family Foundation: In 2023, more than half (51%) of eligible Medicare beneficiaries – 30.8 million people out of 60.0 million Medicare beneficiaries with both Medicare Parts A and B – are enrolled in Medicare Advantage plans. Medicare Advantage enrollment as a share of the eligible Medicare population has jumped from 19% in 2007 to 51% in 2023..