November 2022, CMS releases updated Medicaid/Medicare enrollment numbers.
Total enrollment in both CMS programs and the ACA Marketplace is 157.9M (adjusted for 12M dual enrollment in Medicare/Medicaid; and of the 157.9, 14.5M are in ACA Marketplace plans).
$83.5M in Medicaid (includes duals), 7M in CHIP (children's care).
64.9m in Medicare, of which, 34M in traditional Medicare and 30M in Medicare Advantage.
https://www.cms.gov/pillar/expand-access