Full report - page 44" Notwithstanding the rationale prompting this Audit, the medical record documentation for every audited claim contained an order from the treating physician for an NHV, not a CPAP or RAD, and demonstrated that the equipment was set up for ventilator mode for NHV therapy, the NHV therapy was medically necessary in each case, and each patient used the device in ventilator mode in a manner consistent with the patient’s ventilatory needs and the treating physician’s order. In other words, OIG found no evidence in any medical records related to the 100 audited claims that VieMed was using the ventilators in CPAP or RAD mode or billing the Medicare program inappropriately, as reflected in OIG’s concerns in the Data Brief. "
In other words, VMD fullfilled the prescriptions for NHV accurately. I read the other parts of full report and the crux of the issue is documentation of patient diagnosis and severity of it (which is actually something that puts the onus on physicians and I don't see this as a supplier issue).