Corporations, Not Immigrants, Are Responsible for Vast Majority of Healthcare Fraud, OIG Report Shows

OIG Semiannual Report Details Corporate Provider Fraud Cases

The Department of Health and Human Services Office of Inspector General released its semiannual report to Congress covering enforcement actions over a six-month period. The document outlines multiple cases involving corporate executives and providers accused of billing Medicare and other federal programs for medically unnecessary services or fraudulent enrollments.

One case described a chief executive who directed a scheme supplying medically unnecessary medical devices to Medicare beneficiaries. Another involved an insurance broker and marketing executive who organized an Affordable Care Act enrollment operation targeting individuals experiencing homelessness and substance use disorders. The report does not reference immigration status or noncitizen participation in any of the summarized actions.

Administration officials have separately addressed healthcare program integrity in public statements. In May, Vice President JD Vance and Centers for Medicare and Medicaid Services Administrator Mehmet Oz held a press conference that included claims about potential fraudulent payments in California systems linked to immigration-related costs and undocumented individuals accessing Medicaid. Vance stated there could be tens of billions of dollars in questionable payments involving illegal aliens and fraudulent businesses. Oz referenced hundreds of millions in questionable expenditures tied to immigration-related costs.

President Trump granted clemency in May to Lawrence Duran, former owner of American Therapeutic, who had received a 50-year sentence for a $205 million Medicare fraud scheme. An analysis from the California governor’s office estimated that certain prior pardons reduced repayment obligations totaling nearly $2 billion across Medicare, tax, and other fraud matters.

The National Health Care Anti-Fraud Association has estimated annual healthcare fraud losses at up to $300 billion, with the majority attributed to providers submitting claims for services not rendered or for medically unnecessary procedures. The OIG report format follows prior semiannual submissions that have similarly catalogued provider-level enforcement actions without comparative analysis of participant demographics.

Public statements from administration figures have emphasized immigration in discussions of benefit program integrity. Deputy White House Chief of Staff Stephen Miller has linked improper payments to broader fiscal concerns, though specific attributions tying the national debt directly to immigrant benefit fraud lack independent verification in available records. The administration has also directed freezes on more than $1 billion in Medicaid funding to California and Minnesota.

Sarah Krieger, senior policy counsel at the National Immigration Law Center, stated that available data do not show systemic fraud patterns tied to immigrant communities and that public messaging has centered on immigrants rather than corporate providers. Isha Weerasinghe, director of the public benefits justice team at the Center for Law and Social Policy, described the approach as directing scrutiny toward noncitizen populations while enforcement mechanisms for large-scale provider cases have seen reduced funding and staffing.

A Cato Institute review of federal welfare fraud convictions from 2013 to 2024 found that noncitizens accounted for 5 percent of total documented losses, while citizens accounted for 95 percent. The OIG reports have consistently documented provider billing practices as the primary category of identified fraud across multiple administrations, without demographic breakdowns by citizenship in the summaries released to Congress.

The semiannual report format provides case summaries and aggregate recovery figures but does not include direct comparisons between corporate and individual or immigrant-linked activity. Administration actions on program integrity have included both enforcement announcements and adjustments to funding streams for state Medicaid programs.