Eric Conn was captured in the city of La Ceiba, according to Honduran news outlet El Heraldo. The office said the arrest was "the product of arduous intelligence, surveillance and tailing by the agents". In early June he went on the run before sentencing.
The FBI office in Louisville, Kentucky, did not confirm the arrest Monday Conn's attorney, Scott White, issued a statement on Monday evening.
The FBI offered a reward of $20,000 for his capture.
Not long after he disappeared, Conn, or someone acting as him, emailed the Lexington Herald-Leader and a local lawyer claiming that he had fled overseas to a country without an extradition treaty.
Conn, who started his law practice in a trailer in 1993, had portrayed himself as "Mr".
Eric Conn represented clients in Kentucky and southern West Virginia.
He paid doctors to write false medical evaluations and bribed a judge to rubber stamp applications, Associated Press reports.
Authorities had been tracking Conn for a couple of weeks, the newspaper says. The agency decided not to cut off those payments during that process after Republican U.S. Rep. Hal Rogers interceded.
Eric Conn fled from the United States six months ago after pleading guilty to stealing $600m (£450m) by filing bogus disability claims. An indictment said that in late April Wyatt crossed the U.S. -Mexico border in Nogales, Arizona, and Columbus, New Mexico, to check security measures.