DME MAC Contact Information

To view the DME MAC contact numbers, open the link below. This document includes Beneficiary Contact Information, Supplier Customer Service and the Common Electronic Data Interchange (CEDI) Support Center. You'll need to contact the appropriate DME MAC if you have questions regarding claims processing, claims payment issues or reimbursement.

Please feel free to contact the NSC at (866) 238-9652 if you have any questions regarding enrollment, re-enrollment, changes of information, the Medicare DMEPOS supplier standards or other related subjects.

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