Choosing the wrong DME supplier is an expensive mistake. Some suppliers aren't enrolled in Medicare, aren't accredited, or won't accept Medicare assignment — leaving you with a bill you didn't expect. Here's how to find the right one.
Step 1: Know What You're Looking For
DME stands for durable medical equipment — anything your doctor prescribes for home use to treat a medical condition. Common examples include CPAP machines, continuous glucose monitors, oxygen concentrators, wheelchairs, and hospital beds.
Step 2: Verify They're Enrolled in Medicare
Not every medical supply store accepts Medicare. A supplier must be enrolled in Medicare as a DME supplier and have a valid NPI (National Provider Identifier) number. Every provider listed on DMEHelper has been verified through the NPI registry.
Step 3: Confirm They Accept Medicare Assignment
Suppliers who accept assignment agree to accept Medicare's approved amount as full payment — you only owe the 20% coinsurance after your deductible. Non-participating suppliers can charge up to 15% more than the Medicare rate.
Always ask: "Do you accept Medicare assignment?" before ordering.
Step 4: Check Accreditation
For most DME categories, Medicare requires suppliers to be accredited by a CMS-approved accrediting organization. Unaccredited suppliers cannot bill Medicare. Ask: "Are you CMS-accredited?" — a legitimate Medicare supplier will answer immediately.
Step 5: Ask the Right Questions
- Do you handle prior authorization with Medicare if required?
- Do you bill my secondary insurance?
- What's your return policy if the equipment doesn't work for me?
- Do you provide in-home setup or fitting?
Red Flags to Watch Out For
- Can't provide their NPI number on request
- Vague about whether they accept Medicare assignment
- Ask for your Medicare number before your doctor sends a prescription
- No physical address or contact information