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Key Findings of the Lewin Group

By Leslie Champlin
4/8/2005

  • Imaging grew more slowly than all Medicare Part B services between 2001 and 2003 and accounted for 16 percent of the growth in all Medicare Part B services between 1999 and 2003.
  • Expanding the applications of diagnostic imaging has contributed to the growth in these services and is generally safer than the more invasive techniques they are replacing.
  • Self-referral is not the key driver of growth; some of the highest-growing areas of diagnostic imaging are controlled by radiologists who do not self-refer.
  • Research and experience have shown that, with proper training, cardiologists and other specialists can adequately perform certain diagnostic imaging services.
  • Any policy restrictions limiting the use of ultrasound by specialists will be frustrated by the fact that radiologists currently are in short supply and that most are working at capacity.