Prior to the Medicare Secondary Payer Act (MSP Act), Medicare was the primary payer (i.e., Medicare paid first) for its beneficiaries' claims with limited exceptionssuch as situations where claims were covered by workers' compensation. The majority of the book explains Medicare's secondary payer recovery rights under Medicare Parts A and B, traditional Medicare." Although the program is comprised of four separate parts: Part A, Part B, Part C and Part D. This book serves as an introductory source as well as an intermediate resource for anyone that wants the most up to date information on Medicare secondary payer programs, U.S. Supreme Court decisions regarding the programs, statutory changes, regulatory rule implementations, and current trends in the practical application of MSP laws.