SHARECOMMENTMORE

ANNAPOLIS, Md. (AP) - An audit has found a Maryland commission did not adequately investigate the impact of hospital billing overcharges that were identified through annual reviews.

The state audit released Friday says the Health Services Cost Review Commission didn't determine how long overcharges had been occurring or the extent of prior year overcharges. Auditors examined billing records from four hospitals.

As of June 30, 2011, they found overcharges totaling at least $13.2 million at four hospitals for one procedure at each one, dating as far back as 2001.

The state health department says the commission will require the hospitals to repay overcharges dating back to when the error occurred by adjusting for future rates. The department also says the hospitals will be fined for reporting inaccurate data on their reports to the commission.