The authors analyze existing and developing trends in healthcare fraud litigation. They first review the traditional use of the Medicare-Medicaid Anti-Kickback Statute to prosecute such fraudulent activity. They then consider newer theories that have been employed, or may be employed, in cases involving payors, middlemen, agents, and fiduciaries. These include the use of the Civil False Claims Act, the Federal Travel Act, and the Public Contracts Anti-Kickback (sometimes incorporating violations under state commercial bribery and similar state legislation to form the basis of a federal claim or prosecution). The Article then turns to a discussion and warning of attorneys' potential liability for a client's kickback arrangements. Finally, the Article takes a very brief look at relationships under Medicare Part D that may well prove to be a fertile area of problematic conduct, public and congressional scrutiny, and prosecutions utilizing some of these theories.