Federal prosecutors in Houston say a superseding indictment returned Thursday names Dr. Hossein Lahiji and Najmeh Vahid. They are charged with conspiracy to commit health care fraud and health care fraud.
The McAllen couple allegedly submitted false claims to health care benefit programs since 2003. Prosecutors say Lahiji reported treating as many as 117 patients a day.
The original indictment was returned in January 2011.
Lahiji and Vahid in 2010 were charged in Oregon with secretly sending more than $1.8 million to Iran in funds meant for a children's charity.
They have denied the allegations.
Prosecutors say the Texas and Oregon charges are not related.