04 The 90-Day CPAP Compliance Rule and Doctor Visits
Medicare approves CPAP therapy on a trial basis during your initial 12 weeks of treatment. To maintain coverage beyond this 90-day trial, you must satisfy the strict Medicare CPAP compliance rule.
CMS requires you to use your machine for at least 4 hours per night on 70% of nights. This standard requires 4 or more hours of nightly use for 21 out of 30 consecutive days.
You can achieve this 30-day compliance window at any point during your first 90 days of treatment. Modern CPAP devices record your exact breathing metrics and securely upload your usage data to your medical provider.
Meeting the usage threshold alone does not guarantee ongoing Medicare coverage. You must also complete a mandatory, in-person follow-up appointment with your treating physician strictly between day 31 and day 91 of therapy.
CMS enforces this re-evaluation appointment window with extreme precision. If you visit your physician on day 30, Medicare will reject your claim because the consultation occurred prematurely.
Scheduling your appointment on day 92 or later will also trigger an automatic claim denial. You must ensure your medical provider schedules this crucial follow-up visit inside the permitted 60-day calendar window.
During this consultation, your doctor must review your machine’s recorded compliance data and document clinical progress in your medical chart. Your practitioner must explicitly confirm that your sleep apnea symptoms are improving under active therapy.
If you fail to meet the compliance benchmark or miss your appointment deadline, Medicare stops paying for the machine. When coverage terminates, the equipment supplier will require you to return the CPAP device immediately.
Beneficiaries who fail their initial trial can restart the entire process later. You must undergo a fresh clinical evaluation, complete a new sleep study, and establish a new 90-day trial period.
