Laura, an undocumented immigrant from Mexico living in the San Francisco Bay Area, faced the loss of her Medi-Cal coverage after missing a renewal deadline driven by fears of immigration enforcement. Her experience reflects a broader trend across California and other states as federal and state policy shifts have led to reduced enrollment in Medicaid expansion programs for low-income immigrants. Since January 1, California has denied full Medi-Cal benefits to undocumented adults amid budget constraints and federal Medicaid cuts, with only those enrolled before 2026 allowed to retain coverage if they do not lapse.

Immigration advocates and health researchers note that heightened enforcement actions, including ICE data-sharing agreements and expanded public charge rules, have created a chilling effect, deterring eligible immigrants from accessing or maintaining health coverage. A study by the Latino Policy and Politics Institute at UCLA found that enrollment declines in state-funded programs exceeded patterns explained by deportations alone, attributing much of the drop to fear of detention or data misuse.

State data shows that between May 2025 and March 2026, approximately 244,000 immigrants disenrolled from California’s Medicaid expansion programs, a significant reversal from prior growth trends. Though these individuals represented about 11% of Medi-Cal enrollees as of May 2025, they accounted for roughly one-third of all disenrollments during that period. Advocates say fear of documentation exposure, rather than ineligibility, has been a primary driver of disenrollment.

The impact extends beyond individual patients. Pediatricians and community health providers report increased missed appointments, delayed treatments, and heightened anxiety among immigrant families. Some parents have opted not to renew coverage for U.S.-citizen children, despite continued eligibility, due to uncertainty about data use and enforcement risks. Nonprofits like Mujeres Unidas y Activas have documented cases of families self-deporting or avoiding care altogether, even for chronic conditions like diabetes and cancer.

Federal policy changes, including the reinstated public charge rule, now consider Medicaid use as a factor in green card applications, further complicating access to benefits. While legal challenges continue, advocates warn that ongoing uncertainty will likely exacerbate health disparities. For Laura, the consequences are immediate: her prescriptions are now paid out of pocket, a burden she cannot sustain without stable income. “I don’t know if I’m going to have the same support,” she said. Her story is one of many illustrating how policy shifts and enforcement climates are reshaping access to essential healthcare for vulnerable populations.