Two Cards That Look Alike, Two Rule Books: Medicare Advantage vs Original Medicare at DME Intake
The patient hands over a red, white and blue card or a plan card with a Medicare logo on it. Your intake process probably treats both the same. The payer doesn't.
Why this matters now: Medicare Advantage keeps taking a larger share of your referral mix, and plans are now working to faster federal decision timelines. Teams that still run one intake script for every Medicare patient are finding out which plans disagree with them one denial at a time.
The order that was fine until it wasn't
Say a coordinator takes a walker referral on a Monday. The patient says "I have Medicare," the eligibility check comes back active, and the order goes into the queue. Delivery happens Thursday. Three weeks later the claim comes back: the patient is enrolled in a Medicare Advantage plan, your company isn't in that plan's DME network, and the plan wanted an authorization that nobody requested.
Nothing about that story involves a careless person. The eligibility screen did say "active." The problem is that active coverage and the right payer are two different questions, and many intake scripts only ask the first one.
Original Medicare pays DME claims through the DME MACs under national and local coverage rules. A Medicare Advantage plan is a private insurer that contracts with CMS to cover those same benefits. Plans must cover what Original Medicare covers, but they can run their own networks, their own prior authorization lists and their own claim submission portals. Your documentation standards stay anchored to Medicare's coverage criteria. Almost everything around them can differ.
Where the two paths split
It helps to put the differences side by side, because most denials in this area come from carrying an assumption from one column into the other.
| Question at intake | Original Medicare | Medicare Advantage | Risk |
|---|---|---|---|
| Who pays the claim? | The DME MAC for the patient's region | The plan or its delegated benefit manager, which may not be the name on the card | High |
| Are you in network? | Enrolled supplier with a valid billing number | Plan-specific contract, often with a preferred supplier list per product category | High |
| Prior authorization | Required-prior-auth list set by CMS | Plan's own list, which can include items Original Medicare doesn't require | High |
| Where do you send the request? | MAC portal or fax | Plan portal, delegated vendor or fax, varying by plan and by product | Moderate |
| Coverage criteria | NCDs and LCDs | The plan must follow the same coverage criteria, but may apply them through its own review process | Moderate |
| Cost-sharing | Standard 20% coinsurance after the Part B deductible | Plan-defined copays, which change from one plan to the next | Moderate |
"'Active Medicare' tells you the patient has coverage. It doesn't tell you who will pay, or what they'll ask for first."
What this costs when it goes wrong
An out-of-network delivery is the expensive version. The product is already in the patient's home, the plan may refuse to pay at all, and you're left deciding between an appeal, a write-off or a conversation with the patient that nobody enjoys. Even the cheaper version, a missed authorization, costs a reopening and a stack of paperwork that a quick call on day one would have prevented.
The volume effect is the part that sneaks up on teams. Each plan has its own quirks, and a coordinator carries a few of them around in their head. When that coordinator is out, the knowledge is out too, and the next person starts guessing.
Timelines are changing too
CMS's interoperability and prior authorization rule, CMS-0057-F, pushes impacted payers, Medicare Advantage organizations among them, to answer standard prior authorization requests within 7 calendar days and expedited ones within 72 hours. Those timeframes started applying in 2026. Faster decisions are good news for patients and for your delivery calendar, provided your team actually submits a complete request the first time.
Speed cuts both ways. A plan that decides in a week will also deny in a week if the clinical documentation is thin, and a denial reason tied to missing records is hard to argue later. The quickest way to use a shorter clock is to send everything the plan's reviewer needs up front.
Pre-acceptance checklist for a Medicare patient
Make the payer question the first question
Most teams already ask for the insurance card. What changes things is a rule that the payer path gets decided before the order is accepted, and written down where the next person can see it. That can be as small as one required field in the intake form: Original Medicare, Medicare Advantage, or unknown, with the plan name behind it.
Then give your team a short lookup for the plans you see most often: how each one handles network status, which items they review, where requests go. Five or six plans cover most of a typical referral base, and a one-page cheat sheet saves the same phone call from happening forty times a month.
If you want a quick test, pull the last twenty Medicare referrals that were accepted and check how many have the payer type recorded before delivery. Gaps there are the same gaps that show up later as denials.
Get a second pair of eyes on your payer-path process
Our team reviews how your intake handles Original Medicare and Medicare Advantage orders, then hands you a short list of what to fix first. Pick whichever route suits you.