A home oxygen order does not finish the job. You still have to move the order through a Medicare-enrolled supplier, confirm what the supplier will deliver, record who handles refills and repairs, and match the first claim to the equipment in the house.

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Keep the clinical decision with the treating practitioner. The practitioner decides whether oxygen is appropriate and writes the settings. You manage the paper and service trail. Do not change a flow setting, delivery method, or schedule because a supplier employee, relative, or internet checklist suggests it. Send that question back to the practitioner.

Who pays

Original Medicare treats home oxygen and its related equipment as durable medical equipment under Part B when the coverage conditions are met. Covered items can include the oxygen system, storage containers, tubing, related supplies, oxygen contents, and necessary equipment service. Medicare uses a rental structure for oxygen equipment rather than a simple retail purchase. The supplier that remains responsible can therefore matter long after delivery. See the Medicare coverage-page entry on the Sources page.

If the patient has Medicare Advantage, call the plan before choosing the supplier. Ask whether the plan requires an in-network supplier, prior authorization, or a particular referral route. Get the authorization number and the name of the supplier the plan says may fill the order. A Medicare enrollment listing does not prove that a supplier is in a particular plan network.

If Original Medicare is primary, use Medicare's supplier directory to identify enrolled suppliers. Then ask each supplier two separate questions: "Are you enrolled in Medicare?" and "Will you accept assignment for this order?" Medicare tells beneficiaries to check both. Assignment affects how the supplier bills and what it may collect. Send every rate question to the supplier and insurer by phone because the amount can depend on coverage, assignment, other insurance, and the exact equipment billed. Record the representative's name, the number called, and the answer.

If MO HealthNet or another policy is also involved, do not assume it will automatically pay every remaining amount. Ask the secondary payer whether the supplier must also be enrolled with that payer and whether coordination information is complete. Give the supplier every active insurance card before delivery.

The papers

Start a one-page control sheet. Put the patient's name, Medicare number, plan name, prescribing office, supplier, supplier service number, delivery address, and the person authorized to discuss the account at the top.

The working order is the Standard Written Order, usually called the SWO. CMS says the standard elements include the beneficiary's name or Medicare number, a description of the item, quantity when applicable, the treating practitioner's name or National Provider Identifier, the order date, and the practitioner's signature. The practitioner and supplier handle the coverage documentation. Your job is to ask whether the supplier has a complete order and whether anything is still missing. The CMS documentation rules are identified on the Sources page.

Do not build the file around Form CMS-484. CMS no longer requires Certificates of Medical Necessity or DME Information Forms for new services. An old discharge checklist may still name CMS-484, so ask the supplier whether it is relying on a current SWO and current medical-record documentation instead. Do not try to recreate clinical findings yourself.

If the supplier believes Medicare may not pay for an item or service that would ordinarily fall within Medicare, it may present the Advance Beneficiary Notice of Noncoverage, Form CMS-R-131. Read the description and estimated amount before choosing an option. Ask what exact item or coverage rule triggered the notice. An ABN is not a blank promise to pay every charge. Do not sign an incomplete form. For a Medicare Advantage enrollee, ask the plan which organization determination or plan notice applies instead of assuming the Original Medicare ABN controls.

Before delivery, request a written equipment list. It should distinguish the stationary system, any portable system, regulators or conserving devices, tubing, cannulas or masks, tank stands, power cords, batteries, chargers, and other accessories. Ask which items are included in the rental, which require a separate order, and which will appear as separate claim lines. If the patient must leave home with oxygen, ask the practitioner and supplier whether the written order and coverage record address that need. Medicare's oxygen policy treats stationary and portable systems separately in some circumstances.

Set the delivery appointment

Give the supplier the real delivery conditions, not just the address. Say whether there are stairs, a locked entrance, a building desk, limited parking, pets, or a caregiver who must be present. Ask how long the appointment window is, what must be cleared before arrival, and whether electrical access is required.

Before the driver comes, ask these questions:

What exact system is being delivered? Does it match the SWO? Who will demonstrate it? What number answers after ordinary business hours? How are empty cylinders or depleted portable units replaced? How much notice does the supplier require for a refill or delivery? What happens during a power failure or equipment failure? Who arranges service while the patient is temporarily away from home? What paperwork will the driver ask someone to sign?

Do not accept "call us if there is a problem" as the full service plan. Write down the routine ordering number, urgent service number, hours, refill method, delivery area, and the name of the person who gave the instructions.

Control the handoff at the door

Have the written equipment list beside you during delivery. Record the manufacturer, model, and serial number of each powered unit. Count portable cylinders and accessories. Photograph labels and the condition of the equipment for your file, without posting the patient's identifying information.

Ask the installer to demonstrate the equipment using the practitioner's prescribed settings. You should be able to identify the on and off controls, the displayed setting, power indicators, alarms, battery connection, tubing connection, and the supplier's service label. Ask the installer to show the patient and the person who will actually operate the equipment. A signature that says training occurred is weak evidence if the working caregiver was absent.

Use a teach-back check. Have the operator show how to start the unit, read its indicators, connect the ordered accessories, identify an alarm, locate the backup supply, and call for help. Keep this to operation and supplier instructions. Questions about symptoms, oxygen amount, or when to change use go to the practitioner.

Before signing the delivery ticket, compare the delivered items with the ticket. Cross out nothing casually. Ask the driver to correct wrong quantities, missing accessories, or a model substitution on the supplier's copy and yours. Keep the proof of delivery, setup instructions, warranty information, service numbers, and any financial notice together.

Build the service runway

The setup is not complete until you know how the next supply event happens. Put the expected refill or resupply contact point on your calendar, but do not invent a schedule. Use the supplier's written instructions and the actual rate of use. Medicare says the supplier must furnish the oxygen quantity needed under the covered arrangement, and it tells beneficiaries who are running low on tank refills to contact the supplier immediately. See Medicare's oxygen coverage entry on the Sources page.

Keep a service log with five columns: call date, reason, person reached, promise made, and completion. Use it for refill requests, alarm reports, maintenance visits, missed deliveries, and equipment exchanges. When equipment is exchanged, record the old and new serial numbers. Ask whether the change requires a new practitioner order. Medicare says a supplier cannot simply change the equipment type each month without an order from the treating practitioner.

For a malfunction, call the supplier first and describe the equipment message or failure without changing the prescribed setting. Ask for the service ticket number, response time, and interim equipment plan. If the patient may be in immediate danger, use emergency services. The supplier handles equipment operation and replacement. The practitioner handles clinical instructions.

Medicare's rental payment includes necessary maintenance and servicing during the covered rental arrangement. The supplier that furnishes the equipment at the end of the initial rental-payment period generally remains responsible for equipment, accessories, contents, maintenance, and repair through the equipment's reasonable useful lifetime. That is why you keep the supplier identity and rental start in the file. CMS explains these continuing duties in its oxygen policy article listed on the Sources page.

Audit the first claim

When the Medicare Summary Notice or plan Explanation of Benefits arrives, place it beside the order, delivery ticket, and supplier statement. Match the supplier name, service description, service start, and each equipment line. A claim code is not a model number, so ask the supplier to translate every unfamiliar line into the item in the house.

Check whether the claim was processed as rental equipment, whether the supplier accepted assignment, what Medicare or the plan allowed, what another insurer paid, and what the supplier says you owe. Do not pay a balance merely because it appears on an invoice. Ask the supplier to reconcile the invoice to the processed claim. If a line was denied, ask for the denial reason and whether the supplier is correcting missing documentation or expects you to use an appeal route.

If the delivered equipment does not match the order, the supplier refuses required service, or the claim and invoice will not reconcile, preserve the order, notices, call log, delivery ticket, photographs, and bills. That is the point where a free counselor can read the record without reconstructing it from memory.

Free help

Missouri SHIP provides free, unbiased Medicare counseling. A counselor can help you read the Medicare Summary Notice, identify an appeal or complaint route, and separate Original Medicare rules from Medicare Advantage plan rules. Medicare itself can confirm supplier enrollment and explain a processed claim. Use the contacts collected on Local Help With Paying for Care.

Bring the counselor the SWO description, delivery ticket, CMS-R-131 if one was issued, plan authorization, claim notice, invoice, and service log. Bring the problem in one sentence: "The supplier delivered one system but billed another," "the plan says the supplier is out of network," or "the supplier will not provide the refill or repair route."

If the dispute turns on what the practitioner ordered or what the patient medically needs, stop at the practitioner's office. If a contract, liability demand, or threatened collection requires legal interpretation, stop at a lawyer. This desk helps you assemble the payer and service record. It does not replace either professional.

Home Oxygen Is Ordered. Carry the Setup From the Written Order to the First Refill