Medicaid Crackdown Risk: How New Immigration Checks Threaten Health Coverage for 170K Enrollees

A directive from the Trump administration is forcing state health agencies to perform what experts are calling “unprecedented” checks on Medicaid enrollees, creating a massive administrative challenge and raising alarms that thousands of eligible, low-income Americans could lose their essential health coverage.

The Centers for Medicare & Medicaid Services (CMS) has demanded that state Medicaid agencies investigate over 170,000 names flagged as potentially ineligible due to their immigration status.

Medicaid and the closely related Children’s Health Insurance Program (CHIP) are restricted to U.S. citizens and certain lawfully present immigrants. Those without legal status are ineligible for federally funded health coverage.

However, advocates warn that the federal order to reverify the immigration status of enrollees—a process states already conduct—is inherently flawed:

Administrative Errors: Names flagged by CMS may simply be due to common data errors, such as misspellings or outdated information (e.g., maiden names vs. married names), according to Georgetown University research professor Leonardo Cuello.

Paperwork Loss: If states must contact individuals to request documentation, eligible residents may fall off the rolls for failing to see a letter or missing a deadline.

Duplication: Advocacy groups argue the push “duplicates what states already do” and is “a waste of state resources.”

Marian Jarlenski, a health policy professor at the University of Pittsburgh, stated, “I am not sure that evidence suggests there really is a need for this” extra verification.

The directive is part of the administration’s broader immigration crackdown, with CMS Administrator Mehmet Oz claiming over $1 billion in federal Medicaid funds were misspent on ineligible individuals.

State officials in Democratic-led states targeted by the administration, including Colorado, Illinois, and Washington, D.C., forcefully rejected Oz’s spending claims as “inaccurate,” “overstated,” and “misinformation.”

Washington, D.C.’s Medicaid director acknowledged and fixed some administrative errors related to billing for its local program (which covers individuals regardless of status using D.C. funds) but confirmed they are paying back only $654,014—a fraction of the $2.1 million initially claimed by Oz.

The states singled out for the audit all run programs that legally use state tax dollars to cover certain individuals not eligible for federal Medicaid, often including specific services for those without legal status.

The overarching concern remains the policy’s impact on patient stability, as the effort risks creating extensive, unnecessary work for states with potentially “very little pay dirt,” according to experts.