How Often Will Medicare Pay For A Cpap Machine? Key Facts

If you have obstructive sleep apnea and your doctor has prescribed a CPAP machine, Medicare Part B generally covers the device and the supplies you need to keep it running. The key word is generally. Medicare does not simply hand over a machine and pay for it forever. It pays on a schedule, and your continued coverage depends on whether you are actually using the equipment.

For most people with confirmed obstructive sleep apnea, Medicare will rent a CPAP machine for a 13-month period. After you meet your deductible and pay your 20 percent coinsurance, Medicare pays the rest. Once those 13 months of rental are complete, you own the machine and Medicare stops paying for the device itself. Supplies like masks, tubing, filters, and headgear are covered separately and replaced on a set schedule.

How Often Will Medicare Pay For A CPAP Machine?

Medicare pays for a CPAP machine in monthly rental installments over 13 months, not as a single purchase. This is how the program has structured CPAP coverage for years, and it applies to beneficiaries enrolled in Medicare Part B.

The rental period is designed to give you and your doctor time to confirm the therapy is helping. If you stop using the machine, Medicare can stop paying. If you use it consistently, the rental months continue, and after the 13th month the machine becomes yours.

Here is how the payment structure breaks down:

• Months 1 through 3: This is a trial period. Your doctor must document that you are using the machine and that it is helping your sleep apnea.
• Months 4 through 13: Medicare continues to pay the monthly rental, but only if you keep using the machine.
• After month 13: The rental period ends and you own the machine. Medicare no longer pays for the device itself.

Your exact out-of-pocket cost depends on your deductible, your supplemental insurance, and whether you have a Medicare Advantage plan instead of Original Medicare. Original Medicare pays 80 percent of the approved amount after your deductible. You pay the other 20 percent. A Medigap policy or Medicare Advantage plan may cover some or all of that remaining share.

What Usage Requirements Does Medicare Have For CPAP Coverage?

Medicare requires you to use your CPAP machine at least 4 hours per night on 70 percent of nights during a consecutive 30-day period. This is the standard threshold used to show that the therapy is helping and that continued payment is justified.

That 4-hour figure is not arbitrary. It comes from the clinical criteria Medicare uses to define adherence. The machine itself records your usage, and your supplier transmits that data to Medicare. If your usage falls below the threshold during the trial period, Medicare may stop paying, and you may have to return the machine.

Here is what matters most during those first months:

• Your doctor must see you and document that you are benefiting from the therapy.
• The machine’s data must show you are meeting the usage requirement.
• You must keep the same supplier or notify Medicare if you switch.

This is where many people run into trouble. If you struggle with the mask or the air pressure and stop using the machine, Medicare stops paying. The usage requirement is not a formality. It is the condition for coverage.

Does Medicare Cover CPAP Supplies Separately?

Yes. Masks, tubing, filters, headgear, and cushions are covered separately from the machine itself. Medicare pays for replacements on a schedule based on how often each item is typically worn out or needs to be replaced.

These supplies fall under the same durable medical equipment benefit as the machine. After your deductible, you pay 20 percent of the approved amount, and Medicare pays 80 percent. If you have supplemental coverage, it may pick up your share.

Replacement schedules are based on typical wear and tear, not on a fixed calendar you can ignore. If your mask tears or your tubing cracks before the scheduled replacement date, most suppliers will work with you, but Medicare’s payment rules still apply. Your supplier handles the billing and knows the current schedule for each item.

One point people often miss: the replacement schedule is a maximum, not a guarantee. Medicare pays for a new mask when the schedule allows it, but you are not required to replace supplies you are still using and that are still working.

What Happens If You Stop Using Your CPAP Machine?

If you stop using your CPAP machine during the rental period, Medicare can stop paying, and your supplier may ask you to return the equipment. The machine records your usage, and that data is the basis for continued coverage.

This is not meant to punish anyone. It reflects the way Medicare approaches durable medical equipment. The program pays for equipment that is medically necessary and actually being used. A CPAP machine sitting in a closet is not treating anything.

If you are having trouble with your machine, talk to your doctor or supplier before you give up on it. Mask fit problems, pressure that feels too high or too low, and dry mouth or nose are common issues that often have practical fixes. A different mask style or a humidifier adjustment can make a real difference for some people. Your doctor can also adjust the pressure settings if needed.

If you truly cannot tolerate CPAP therapy, other options exist, including oral appliances and surgery in selected cases. These have their own coverage rules under Medicare, and you would need to discuss them with your doctor.

Does Medicare Advantage Cover CPAP The Same Way?

Medicare Advantage plans must cover at least the same services as Original Medicare, but they can set their own rules for how you get equipment and what you pay. Most Medicare Advantage plans cover CPAP machines and supplies, but the rental structure, supplier network, and cost sharing can differ from Original Medicare.

Some Medicare Advantage plans use in-network suppliers only. If you have a Medicare Advantage plan, check with your plan before you get a machine or supplies. Using an out-of-network supplier could mean paying more or having a claim denied.

Original Medicare allows you to use any supplier that is enrolled in Medicare and accepts assignment. That flexibility is one of the main differences between the two programs.

What Do You Need Before Medicare Will Pay For CPAP?

Medicare requires a confirmed diagnosis of obstructive sleep apnea and a face-to-face visit with your doctor before it will pay for CPAP therapy. The documentation requirements are specific, and your doctor’s office handles most of them.

The general requirements include:

• A sleep test that confirms obstructive sleep apnea. This is usually a home sleep apnea test or an in-lab sleep study.
• A face-to-face visit with the treating physician before the equipment is ordered.
• A written order from your doctor that includes the specific diagnosis and the equipment being prescribed.
• Documentation that you have obstructive sleep apnea, not central sleep apnea, for standard CPAP coverage. Central sleep apnea involves a different device and different coverage rules.

Your doctor also needs to document that you will benefit from the therapy. This is not just a formality. Medicare uses these records to decide whether to pay.

If you have not had a sleep test, you will need one before Medicare will consider covering a CPAP machine. A diagnosis based on symptoms alone is not enough for coverage.

How Much Will You Pay Out Of Pocket?

After you meet your Part B deductible, you pay 20 percent of the Medicare-approved amount for the machine and supplies during the rental period. Medicare pays the other 80 percent.

The Medicare-approved amount is not the same as the retail price. Suppliers that accept assignment agree to charge no more than the approved amount, which is set by Medicare. If you use a supplier that does not accept assignment, you could be charged more.

Your total out-of-pocket cost over 13 months depends on several things:

• Whether you have met your deductible for the year.
• Whether you have a Medigap policy or Medicare Advantage plan that covers your 20 percent.
• What your supplier charges and whether they accept assignment.
• How many supplies you need and how often they are replaced.

Because the approved amounts vary by region and supplier, there is no single dollar figure that applies to everyone. Your supplier can give you an estimate based on your specific situation.

What Is The Bottom Line On Medicare CPAP Coverage?

Medicare pays for a CPAP machine through a 13-month rental period, then you own it. Supplies are covered separately and replaced on a set schedule. The whole arrangement depends on you using the machine enough to meet Medicare’s usage requirement.

The usage rule catches people off guard. It is worth understanding before you start therapy, not after. If you are struggling with your machine, address it early. The first few months determine whether Medicare keeps paying.

This article is informational and not medical or billing advice. Coverage rules can change, and your specific situation may differ. For questions about your own coverage, contact Medicare directly or speak with your supplier and your doctor’s office.