The Trump administration has ordered states to investigate certain individuals enrolled in Medicaid to determine whether they are ineligible because of their immigration status, with five states reporting theyāve together received more than 170,000 names ā an āunprecedentedā step by the federal government that ensnares the state-federal health program in the presidentās immigration crackdown.
Advocates say the push burdens states with duplicative verification checks and could lead people to lose coverage just for missing paperwork deadlines. But the administrator of the Centers for Medicare & Medicaid Services, Mehmet Oz, said in a post on the social platform X on Oct. 31 that more than $1 billion āof federal taxpayer dollars were being spent on funding Medicaid for illegal immigrantsā in five states and Washington, D.C.
(ACoM adds: In California, Medicaid is known as MediCal)
Medicaidās overall spending topped $900 billion in fiscal year 2024.
It wasnāt clear from Ozās statement or an accompanying video over what period the spending happened, and CMS spokespeople did not immediately respond to questions, either for an earlier version of this article or after Ozās statement was posted.
Only U.S. citizens and some lawfully present immigrants are eligible for Medicaid, which covers low-income and disabled people, and the closely related Childrenās Health Insurance Program. Those without legal status are ineligible for federally funded health coverage, including Medicaid, Medicare, and plans through the Affordable Care Act marketplaces.
Several states disputed Ozās comments.
āOur payments for coverage of undocumented individuals are in accordance with state and federal laws,ā said Marc Williams, a spokesperson for Coloradoās Department of Health Care Policy & Financing, which administers the stateās Medicaid program. āThe $1.5 million number referenced by federal leaders today is based on an incorrect preliminary finding, and has been refuted with supporting data by our Department experts.ā
He added: āIt is disappointing that the administration is announcing this number as final when it is clearly overstated and the conversations are very much in the education and discussion phase.ā
Illinois Medicaid officials blasted Ozās comments.
āOnce again, the Trump administration is spreading misinformation about standard uses of Medicaid dollars,ā said Illinois Medicaid spokesperson Melissa Kula. āThis is not a reality show, and there is no conspiracy to circumvent federal law and provide ineligible individuals with Medicaid coverage. Dr. Oz should stop pushing conspiracy theories and focus on improving health care for the American people.ā
The Washington State Health Care Authority, which runs the stateās Medicaid program, was also blunt.
āThe numbers Dr. Oz posted on social media today are inaccurate,ā said spokesperson Rachelle Alongi. āWe were very surprised to see Dr. Ozās post, especially considering we continue to work with CMS in good faith to answer their questions and clear up any confusion.ā
In August, CMS began sending states the names of people enrolled in Medicaid that the agency suspected might not be eligible, demanding state Medicaid agencies check their immigration status.
KFF Health News in October reached out to Medicaid agencies in 10 states. Five provided the approximate number of names they had received from the Trump administration, with expectations of more to come: Colorado had been given about 45,000 names, Ohio 61,000, Pennsylvania 34,000, Texas 28,000, and Utah 8,000. More than 70 million people are enrolled in Medicaid.
Most of those states declined to comment further. Medicaid agencies in California, Florida, Georgia, New York, and South Carolina refused to say how many names they were ordered to review or did not respond.
Read the full KFF story here.



