Contact Medicare Secondary Payer (MSP)
Published 10/11/2022
Call the MSP Contractor at: 855-798-2627
TTY/TDD: 1-855-797-2627 for the hearing and speech impaired.
Hours of operation: 8 a.m. to 8:00 p.m. ET, Monday through Friday.
Mailing addresses for the MSP Contractor are available on the CMS.gov website
Submit Documentation
You can submit your completed forms and documentation to:
Fax (Preferred Method):
(803) 870-0146
(803) 870-0146
US Mail:
Palmetto GBA
ATTN: Medicare Secondary Payer (MSP)
P.O. Box 100306
Columbia, SC 29202-3190
Palmetto GBA
ATTN: Medicare Secondary Payer (MSP)
P.O. Box 100306
Columbia, SC 29202-3190
FedEx, USPS, or Overnight Courier:
Palmetto GBA
ATTN: Medicare Secondary Payer (MSP)
2300 Springdale Drive
Building One
Camden, SC 29020-1728
Palmetto GBA
ATTN: Medicare Secondary Payer (MSP)
2300 Springdale Drive
Building One
Camden, SC 29020-1728
Contact a Different Department
View our main Contact Us page for information on how to submit a general inquiry or to contact a different department.