Reed Smith Analysis of Changes to Medicare Secondary Payer (MSP) Law By Debra A. McCurdy on 28 January 2013 Print:Email this postLike this postShare this post on LinkedIn As discussed in a recent post, a new law, the Medicare IVIG Access and Strengthening Medicare and Repaying Taxpayers Act, makes significant revisions to MSP policies. A Reed Smith analysis of the MSP changes is now available.