dr. mcdermott, members of the committee, thank you very much for this opportunity to testify before you today. i'm dr. ellen evans, lead physician with health data insight, cms recovery auditor. i am a proud graduate of the university of texas medical school, residency-trained, board-certified licensed family physician with a certificate of added qualifications in geriatric medicine. i joined hgi during the rac demonstration program. at hdi i oversee all of our medical and clinical recovery audit activities. the recovery audit program is not focused on fraudulent payments. we review claims to insure compliance with medicare practices and also identify underpayments that are returned to the providers. this program is a critical component of medicare operations because over $30 billion are improperly paid by medicare every year. since the recovery audit program was passed and implemented in 2006, over 8 billion improperly paid medicare dollars have been recovered as well as $700 million in under payments returned to providers. recovery auditors identify types of claims most at risk of improper