CMS posts Medicaid expansion enrollment as of March 2025: Still over 20.7 million

The Centers for Medicare & Medicaid Services (CMS) has posted an official update to the enrollment data for ACA Medicaid expansion through March 2025.

According to the new report, total enrollment from December 2024 through March 2025 only dropped slightly (just over 30,000 people, or just 0.14%), and remained at over 20.7 million nationally, so it doesn't look like the Trump Admin has started cooking these particular books, at least not yet.

I've been able to cobble together more recent ACA expansion enrollment for about half of the 40 states (+DC) which participate in the program; since March, expansion enrollment has dropped in some states but is actually up in some others. It remains remarkably stable so far, although this is going to change radically with the draconian provisions of the GOP's Big Ugly Bill starting to kick in soon.