Medicare Secondary Payer Manual (Pub. 100-05), Ch. 5 § 10.6
Referring Calls to the MSP Contractor
10.6 - Referring Calls to the MSP Contractor
(Rev. 11550; Issued: 08-12-22; Effective: 10-13-22; Implementation:10-13-22)
The MSP Contractor Customer Service number is 855-798-2627 All questions on any of the activities
listed in §10.7 shall appropriately go directly to the MSP Contractor. A/B MACs and DME MACs
shall refer telephone calls on any of the activities listed in §10.7 to the MSP Contractor Customer
Service number. Where the A/B MAC and DME MAC phone system has the capability, it shall
transfer the caller to the MSP Contractor. If the A/B MAC and DME MAC does not have this
capability, it shall transfer the call through a manual transfer process that does not require the caller to
dial another number. If it has neither capability, it shall take the information from the caller and refer
the issue to the MSP Contractor via ECRS within two (2) calendar days of receipt of phone call. Also,
it shall provide the caller with the MSP Contractor's toll-free Customer Service number and direct the
caller to place any follow-up calls to the MSP Contractor. The A/B MACs and DME MACs shall
always provide this number to the caller. The hearing and speech impaired shall be referred to
TTY/TDD: 1-855-797-2627.