Medicare DMEPOS Enrollment
The process by which a supplier registers with CMS to bill Medicare for durable medical equipment, prosthetics, orthotics, and supplies.
Before a DME supplier can bill Medicare, it must complete enrollment in the Medicare program as a DMEPOS (Durable Medical Equipment, Prosthetics, Orthotics, and Supplies) supplier. Enrollment is managed through the National Supplier Clearinghouse (NSC), which verifies that suppliers meet all 30 CMS supplier standards.
Key enrollment requirements include maintaining a physical location accessible to beneficiaries, carrying general and professional liability insurance, being accredited by a CMS-approved accrediting organization, and having a valid National Provider Identifier (NPI). Suppliers must be re-validated every five years.
CMS has strict rules around billing: claims must be for items that were ordered by a licensed physician, medically necessary, actually delivered to the beneficiary, and matching the exact HCPCS code billed. Documentation deficiencies — including missing serial numbers on the delivery record — are among the most common reasons for claim denial and audit findings.
Losing Medicare enrollment, even temporarily, is existential for most DME businesses. Maintaining the 30 supplier standards and accreditation is not optional — it is the cost of staying open.