National Supplier Clearinghouse

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Email National Supplier Clearinghouse to have your NSC inquiries answered.

Website Feedback
Do you have website feedback? Contact our Webmaster.

You may also call the National Supplier Clearinghouse toll-free at 866-238-9652 from 9 a.m. until 5 p.m. ET to reach a customer service representative. The automated response system is available 24 hours a day.

Our Address
Should you like to contact the NSC in writing, send your inquiry to:

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

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

You may also visit our offices located in Columbia, South Carolina.

Send Freedom of Information Act (FOIA) Requests to:
Palmetto GBA - NSC
FOIA Coordinator
Mail Code: AG-615
P.O. Box 100190
Columbia, SC 29202-3190

Still have questions?

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Feedback to the Centers for Medicare & Medicaid Services (CMS)
If you would like to send any feedback to CMS regarding your experience with Palmetto GBA, please direct your comments to:

PCOM Coordinator
CMS Region IV
61 Forsyth Street, S.W., Suite 4T20
Atlanta, GA 30303-8909


    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

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