Can I make an appointment for my site visit?

Site visits are unannounced and will take place during your posted hours of operation. Supplier Standard 30 requires the location to be in operation for a minimum of 30 hours per week unless exempted by supplier type. If a site inspector visits your location outside of the posted hours of operation, the inspector will attempt a subsequent site visit during the posted hours.

If a site visit is refused or cannot be completed, the supplier is subject to the denial/revocation of Medicare billing privileges.

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


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RRB Specialty MAC Beneficiaries