The Office of the Inspector General (OIG) released a report earlier this month on Medicare spending on polysomnography (sleep studies to diagnose and guide treatment for conditions such as sleep apnea), which indicated that of the roughly $565 million spent on over 1 million sleep studies in 2011, nearly $17 million in claims appeared not to meet Medicare requirements. As a result, OIG recommended that CMS tighten its claims processing for sleep studies and that the agency takes appropriate actions against offending providers and suppliers that may have received improper Medicare payments.