NSC Referral Form to Report Possible Supplier Standards Violations

If you need to report a suspected violation of the Medicare DMEPOS supplier standards, please complete the attached referral form and send it to the NSC Supplier Audit and Compliance Unit (SACU) by mail or by fax (803) 865-7024. If you wish to submit the form by mail, please use one of the following addresses:

National Supplier Clearinghouse
Palmetto GBA
Attn: SACU
P.O. Box 100142
Columbia, SC 29202-3142

Overnight Mailing Address
National Supplier Clearinghouse
Palmetto GBA
Attn: SACU
2300 Springdale Drive, Bldg. 1
Camden, SC 29020

The referral form may be downloaded by clicking the link below. For security reasons, this form may not be submitted electronically to the NSC SACU. 

This referral form contains a helpful reminder of the current supplier standards as listed in Title 42 of the Code of Federal Regulations, Sec. 424.57(c). With your help, the NSC SACU is committed to ensure all DMEPOS suppliers remain in compliance and maintain standards of quality service to Medicare beneficiaries.

Should you have any questions or comments, please feel free to contact the NSC SACU manager, Marlena Harris, at (803) 763-5579. Thank you for your assistance in protecting the Medicare Trust Fund.

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