In a post on social media platform X, FBI Director Kash Patel wrote that $14.6 billion in losses were incurred, while $245 million was seized, as FBI Deputy Director Dan Bongino said in a separate post on X that hundreds of people were charged in the case.

"Public corruption will not be tolerated as the Director and I vigorously pursue bad actors who violated their oaths to all of us," Bongino said, describing the case as the "largest healthcare fraud investigation" in the country's history.

The investigation encompassed 50 federal districts and 12 state attorneys general, according to the DOJ. State and federal law enforcement agencies also took part, according to the FBI.

A statement issued by the DOJ said that criminal charges were filed against 324 defendants, including 96 doctors, nurse practitioners, pharmacists, and other health care workers across the United States. Officials said that 29 defendants were charged with partaking in transnational criminal groups who allegedly submitted around $12 billion in fraudulent health-related claims to U.S. health insurance companies.

Further, four defendants were apprehended in Estonia based on cooperation with law enforcement agencies in that country, while seven others were arrested at the U.S.–Mexico border or at American airports, the DOJ said.

That organization, federal prosecutors said, is accused of using individuals sent into the United States from other countries to purchase "dozens of medical supply companies located across the United States" before submitting $10.6 billion in fraudulent health care claims to Medicare for medical devices and equipment.

At the same time, that group allegedly exploited stolen identities from U.S. citizens across all 50 states, using their stolen medical information to submit the false claims, according to the DOJ.