DMEPOS Development Guidelines

DMEPOS suppliers must respond to development requests made by the National Supplier Clearinghouse (NSC) within 30 days. This development time frame is in accordance with the Centers for Medicare & Medicaid Service publishing a final rule titled, "Appeals of CMS or CMS Contractor  Determinations When a Provider or Supplier Fails to Meet the Requirements for Medicare Billing Privileges (CMS 6003-F)" in the Federal Register. This final rule directs Medicare contractors to reject an enrollment application when a provider or supplier fails to provide missing information or documentation within 30 days of a contractor’s request for additional information. If a supplier’s application is closed or the Medicare billing privileges are deactivated due to non-response of a development request, the supplier does not have appeal rights and must reapply to the NSC for Medicare billing privileges using the CMS-855S enrollment application or through Internet-based PECOS.

Contact NSC

Email National Supplier Clearinghouse

Contact a specific NSC department

Telephone: 866-238-9652

IVR: 866-238-9652


National Supplier Clearinghouse

Palmetto GBA, AG-495

P.O. Box 100142

Columbia, SC 29202-3142

Other Palmetto GBA Sites

Palmetto GBA Home

DMEPOS Competitive Bidding Program

Jurisdiction J Part A MAC

Jurisdiction J Part B MAC

Jurisdiction M Part A MAC

Jurisdiction M Part B MAC

Jurisdiction M Home Health and Hospice MAC


National Supplier Clearinghouse MAC


RRB Specialty MAC Providers

RRB Specialty MAC Beneficiaries