I just got diagnosed with OSA and the doctor also added supplemental oxygen at night only as my sats were 84/86 during the sleep study. However, medicare denied coverage for the oxygen and I then asked the supplier to contact her and review that decision so I don't have to pay $100 month for the concentrator.. It's been two nights of cpap and it has relieved the closed throat issue but I'm concerned about the oxygen. Should I just go ahead and pay for it?