The OIG has created a “spotlight page” on its website that compiles information on previous OIG investigations involving independent diagnostic testing facilities (IDTFs) -- Medicare providers that furnish diagnostic services independent from a physician's office or hospital. According to the OIG, “IDTF services have historically been vulnerable to abuse,” and thus have been a topic of focus for the OIG for more than a decade. The spotlight page includes a review of a variety of OIG audit, inspection, and enforcement actions involving IDTFs. This comes in the wake of two recent OIG reports that anounced CMS's plans to conduct more unannounced site visits of IDTFs nationally.