National Supplier Clearinghouse

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Email
Email National Supplier Clearinghouse to have your NSC inquiries answered.

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

Telephone
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
AG-495
P.O. Box 100142
Columbia, SC 29202-3142

Overnight Mailing Address
National Supplier Clearinghouse
Palmetto GBA
AG-495
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?

• You can find direct answers to your technical questions by visiting our Site Help page
• Need to contact another Medicare department on this site? Go to our Site Contact page.
• For help with technical problems using your computer on this website, email Palmetto GBA's Technical Assistance  

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