Earlier today I noted that according to the most recent Medicare enrollment report from the Centers for Medicare & Medicaid Services (CMS), Medicare Advantage enrollment--in which a private insurance carrier is paid by the federal government to administer Medicare benefits, and which differs in some important ways from "traditional" or "Fee for Service" Medicare--is on the verge of overtaking traditional Medicare in terms of total enrollment.

As of May 2023, 48.5% of all Medicare enrollees were covered via a Medicare Advantage plan, a percentage which has been steadily increasing over the years (it was only at 35.5% as of 2019).

While I mention this every time I post about the latest Medicare enrollment report, it's been some time since I've checked on the traditional vs. privately administered variants of Medicaid enrollees. For a long time I've been under the impression that roughly 70% of Medicaid enrollment was handled via Managed Care Organizations (MCOs):