California's biggest provider of medical lab testing has agreed to repay the state $241 million for more than 15 years of overcharges to Medi-Cal, the state attorney general's office said Thursday.

The settlement from Quest Diagnostics Inc. is the result of a 2005 lawsuit brought by a whistleblower who alleged the labs systematically overcharged patients of Medi-Cal, the state's Medicaid program for the poor.

Read the complete Businessweek story, “Quest Diagnostics to pay $241M for overcharges.”