International Institute of Sleep Inc, an independent diagnostic testing facility based in Deerfield Beach, Fla, billed Medicare for polysomnography services that did not meet Medicare billing requirements, according to the the Office of the Inspector General (OIG).The OIG reports that Medicare billing requirements were not met for all 100 randomly selected beneficiaries with 130 corresponding lines of service, resulting in overpayments of $78,000. “These errors occurred primarily because the Institute did not have adequate controls to ensure that it properly documented polysomnography services billed to Medicare,” the OIG states in a release. “On the basis of our sample results, we estimated that the Institute received overpayments of at least $1 million for the audit period.” The full report is available on the OIG’s website.