Immigrants in the United States can get health care, but the type and extent of coverage depends heavily on immigration status. At one end, naturalized citizens have the same access as anyone born in the U.S. At the other, undocumented immigrants are largely shut out of public insurance programs, with half of undocumented adults uninsured as of 2023. In between, there’s a complex web of federal programs, state options, and safety-net clinics that fill some of the gaps.
Coverage Rates by Immigration Status
The numbers paint a clear picture of how status shapes access. Among U.S.-born citizens, about 8% of adults lack health insurance. Naturalized citizens (immigrants who’ve become citizens) are close behind at 6% uninsured. Lawfully present immigrants who haven’t yet naturalized are uninsured at a rate of 18%. And among likely undocumented immigrant adults, the uninsured rate jumps to 50%.
These gaps exist because federal law ties most public health programs to specific immigration categories, creating a tiered system where your paperwork matters as much as your health needs.
Who Qualifies for Marketplace Insurance
The Affordable Care Act marketplace is open to a broad range of immigrants with legal status. Green card holders, refugees, asylees, people with Temporary Protected Status, those with work visas (H-1B, H-2A, H-2B), student visas, U-visas for crime victims, and T-visas for trafficking survivors can all purchase marketplace plans. People with employment authorization documents, those paroled into the U.S., and holders of Special Immigrant Visas from Iraq or Afghanistan also qualify.
Lawfully present immigrants who meet income requirements can receive the same premium tax credits and cost-sharing reductions that U.S. citizens get, making coverage significantly more affordable. One notable exclusion: DACA recipients are not currently eligible for marketplace coverage as of 2025.
Medicaid and the Five-Year Waiting Period
Most lawful permanent residents face a five-year waiting period before they can enroll in Medicaid or the Children’s Health Insurance Program (CHIP). During those five years, the marketplace is typically the main option for subsidized coverage.
Several groups skip the wait entirely. Refugees and asylees can enroll in Medicaid right away. So can Cuban and Haitian entrants, citizens of the Marshall Islands, Micronesia, and Palau living in the U.S., and green card holders who have a 10-year U.S. work history or a military connection. These exemptions recognize that some immigrants arrive in circumstances where delaying coverage would be especially harmful.
Refugees who don’t qualify for Medicaid have another option: Refugee Medical Assistance, a federal program that provides short-term coverage with benefits similar to Medicaid. It also funds an initial medical screening shortly after arrival in the U.S.
What Undocumented Immigrants Can Access
Undocumented immigrants are ineligible for Medicaid, marketplace insurance, and most other federal health programs. But they are not entirely without options.
Federal law requires every hospital that participates in Medicare to screen and stabilize anyone who shows up with an emergency medical condition, regardless of insurance or immigration status. This protection, known as EMTALA, means emergency rooms cannot turn people away. Emergency Medicaid also exists in every state to cover the cost of emergency treatment for people who would qualify for Medicaid based on income but are barred by their immigration status.
Beyond emergencies, access varies dramatically by state. Some states have used their own funds to extend Medicaid-like coverage to undocumented residents, particularly children and pregnant women. Prenatal care is generally available in all states for qualified immigrants, and many states allow emergency Medicaid to cover prenatal services for those without legal status. Several states also offer state-funded health coverage for undocumented children specifically.
Community Health Centers
For immigrants without insurance of any kind, federally qualified health centers (FQHCs) are often the most reliable source of ongoing care. The U.S. has roughly 1,400 of these centers operating in thousands of locations nationwide. They exist specifically to serve people who face barriers to care elsewhere, and they don’t ask about immigration status.
FQHCs charge on a sliding fee scale based on income, meaning visits can cost very little or nothing for low-income patients. They provide comprehensive primary care and often go further, offering health education, case management, translation services, and sometimes even transportation. Migrant health centers, a subset of FQHCs, are specifically designed to serve agricultural workers and their families, many of whom are immigrants.
This safety net of community clinics, public hospitals, and nonprofit providers forms the backbone of care for immigrants who fall through the gaps in insurance coverage.
Employer-Sponsored Insurance
Immigrants with work authorization can enroll in employer-sponsored health plans just like any other employee. There are no federal restrictions preventing a lawfully present immigrant from joining their company’s group health plan. For many working immigrants, especially those in the five-year Medicaid waiting period, employer coverage is actually the primary way they get insured. The same ACA rules apply: large employers must offer affordable coverage to full-time workers, and the plans must meet minimum coverage standards.
The Public Charge Question
One major reason eligible immigrants avoid enrolling in health programs is fear that it will hurt their chances of getting a green card. Under immigration law, officials can deny a green card to someone they believe is likely to become a “public charge,” meaning primarily dependent on government support.
The current rules, finalized in 2022 and still in effect, define public charge narrowly. Only cash assistance programs (like welfare payments) and government-funded long-term institutional care count against you. Medicaid, CHIP, marketplace subsidies, and other noncash benefits are specifically excluded from public charge assessments. Using these programs will not affect a green card application under current policy. The rules also prohibit officials from considering whether your family members use public benefits.
Despite these protections, research from the Kaiser Family Foundation has documented a persistent “chilling effect” where immigrants and their families, including U.S. citizen children, avoid enrolling in programs they’re entitled to because of confusion or fear about immigration consequences. This chilling effect contributes to higher uninsured rates among immigrant communities even when coverage is technically available.