mr. brian ritchie is the acting deputy inspector general at the office of inspector general at hhs. thank you all for being here. and thanks for your testimony today. we've all received your written testimony. that will be a part of the permanent record. we would now be glad to receive your oral testimony as well. i would ask to limit it to five minutes. you'll see the clock in front of you. miss king, you are first. >> mr. chairman, and members of the subcommittee, thank you for inviting me to talk about improver payments. cms has made progress in implementing recommendations to reduce improper payments. i want to focus my remarks today on three areas. provider enrollment, prepayment claims review, and post-payment claims review. with respect to provider enrollment, cms has implemented provisions of the patient protection in the affordable care act to strengthen the enrollment so the providers are prevented from enrolling in medicare and higher risk providers undergo more scrutiny before being permitted to enroll. there's more moratoria on the certain types of providers, and has co