MSP Lookup Tool

Published 01/04/2021

The MSP Lookup tool will allow you to answer a series of electronic yes or no questions to determine whether Medicare should be primary or secondary for that beneficiary.

A link to the MSP Lookup tool appears in the Tools menu at the top of this page. Along with the tool, we have developed some language to explain what the tool is designed to do, what it's based on, and what you should do if Medicare records do not match the results from the tool.