In July 2025, the Trump administration granted Immigration and Customs Enforcement direct access to a federal Medicaid database. This system holds personal details on 79 million enrollees. The move aims to aid deportation efforts, but a 2026 court ruling has created uneven rules across states.
The Information Exchange Agreement
The Centers for Medicare and Medicaid Services, or CMS, signed an Information Exchange Agreement with ICE. This gives ICE access to the T-MSIS database, a national system for Medicaid records. Health Secretary Robert F. Kennedy Jr. ordered the data transfer.
CMS issued a notice on November 25, 2025. It stated that ICE could get biographical details, contact info, and location data. ICE could request more on a case-by-case basis.
ICE staff get access for two-month periods that renew. They can view data Monday through Friday, from 9 a.m. to 5 p.m. They cannot download the information.
Types of Data Involved
The database includes sensitive personal details. These cover name, address, Medicaid ID number, Social Security number, date of birth, sex, phone number, locality, ethnicity, and race. Such information helps ICE find people for deportation.
Acting ICE Director Todd Lyons said the access targets those ordered deported by a judge or released from sanctuary areas. He linked it to plans for the largest deportation operation in U.S. history.
The Lawsuit and Court Ruling
Twenty-two states sued in July 2025 to stop the data sharing. All but one have Democratic governors. California Attorney General Rob Bonta led the suit with 21 others.
U.S. District Judge Vince Chhabria issued a preliminary injunction in December 2025. He limited sharing in those states to six basic items: citizenship, immigration status, address, phone number, date of birth, and Medicaid ID.
The judge restricted access to records of people unlawfully in the U.S. He blocked data on citizens and lawful immigrants. He also barred sharing personal health records or sensitive medical info for enforcement.
Chhabria noted unclear policies and a lack of good reasons for broader sharing.
State-by-State Divide
The ruling applies only to the 22 plaintiff states. In the other 28 states, ICE has full access to enrollees’ personal info without limits. This creates different protections based on where someone lives.
Some suing states, like California, Illinois, Colorado, New York, and others, offer Medicaid benefits regardless of immigration status. Washington, D.C., faces similar issues.
Experts question how CMS separates protected data from the national database. The T-MSIS pulls info from all states, which complicates enforcement of the order.
Reactions and Broader Concerns
California Governor Gavin Newsom called the sharing “legally dubious” and an abuse. He said it risks the safety and health of enrollees and others.
Bethany Pray from the Colorado Center on Law and Policy raised a key worry. She said people should not choose between hospital care, like giving birth, and deportation risk.
Hospitals and officials debate warning immigrant patients. Their addresses given for care could aid ICE. This may deter families from seeking treatment or basic services.
Past efforts to use taxpayer or food aid data for deportations faced court blocks. Medicaid stands out for its size and detail.
Ongoing Questions
The split rules turn a national health program into a patchwork. Enrollees in suing states have narrower exposure. Those elsewhere face broader risks.
Medicaid experts doubt clean data separation. Race and ethnicity fields in the original deal drew extra scrutiny once public.
Conclusion
ICE’s access to Medicaid data marks a major step in deportation plans. The 2026 court ruling protects 22 states but leaves 28 without limits. This raises privacy fears and may chill health care use, highlighting tensions between enforcement and public health.
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