A federal grand jury on Thursday indicted a Baton Rouge man, already accused of stealing thousands of dollars from the Mary Bird Perkins Cancer Center, with trying to steal almost $300,000 from other health care centers, U.S. Attorney Walt Green’s office announced.

Larry Butler, 49, was arrested in Tacoma, Washington, on Monday almost a month after Baton Rouge police issued a warrant for his arrest for charging over $16,000 for personal items using Mary Bird Perkins Cancer Center’s credit cards.

He had been employed as a director of the facilities at the center, and the discrepancies only came to light after he announced he was leaving the center for another job.

But now the U.S. Attorney’s Office says that incident was a small fraction of a far larger scheme.

Butler had been orchestrating a scheme since July 2013 to defraud hundreds of thousands of dollars from other institutions, Green said. That scheme involved using fake Social Security numbers, a California driver’s license and other documents to hide a criminal history and keep his job with the groups that he was stealing from, Green said in a news release.

Besides Mary Bird Perkins, the indictment says Butler also worked at Louisiana Health Cooperative, a nonprofit health insurance cooperative in Covington, where he also used credit cards in that company’s name to get cash advances and purchase items for his personal use.

Butler is accused of using the money for traveling, food and furniture.

Baton Rouge police have said that after Butler left the cancer center and employees emailed him about the purchases, he admitted that he spent the money for his own use but did not make any offers to pay the money back.

The indictment against Butler includes wire fraud, false representation of a Social Security number and aggravated identity theft.

The case will be prosecuted by Assistant United States Attorney Ryan Crosswell.