Medicare Advantage vs. Original Medicare for durable medical equipment: the coverage differences that matter

Original Medicare covers durable medical equipment through Part B at a standard, federally defined benefit structure, with beneficiaries generally able to use any Medicare-enrolled DME supplier nationally. Medicare Advantage plans are required to cover at least the same DME categories, but they administer that coverage through their own private plan structure, which commonly means a narrower network of contracted suppliers and plan-specific prior authorization requirements that Original Medicare's DME benefit doesn't impose in the same way.

Prior authorization is the specific difference that generates the most patient friction in practice — Medicare Advantage plans use prior authorization for DME categories more frequently than Original Medicare, and data on Medicare Advantage prior authorization more broadly has found denial rates and appeal-reversal rates high enough that federal oversight bodies have specifically flagged DME and other benefit categories for scrutiny in recent years.

For someone anticipating a DME need — a new oxygen prescription, a mobility device — checking the specific plan's supplier network and prior authorization requirements before the equipment need becomes urgent avoids the more common failure pattern: discovering network or authorization restrictions only after a device is already prescribed and needed quickly.