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All-or-Nothing P4P

Posted Apr 04 2012 3:06am

Many of Medicare’s value-based purchasing (VBP) initiatives offer a continuum of rewards based on provider performance.  Whereas all-or-nothing VBP initiatives only grant bonuses to providers who exceed a single threshold, the Medicare VBP programs–such as its hospital VBP program–reward hospitals based a value-based modifier that is proportional to its quality score.

One of the reasons to avoid the ‘all-or-nothing’ framework is that providers who are far from the threshold may give up; they may not invest significant efforts to improve quality since the change of reaching the threshold may be small.

A paper by Dowd, Feldmand and Nersesian (2012) finds that providers do in fact ‘give up’ in practice if the threshold is set too high.  The paper examines a physician network’s efforts to improve their generic prescription rate (GPR).  The authors find that:

The GPR-maximizing target would induce an improvement in average GPR from 58.3% to 65.8% or 7.5 percentage points.  When the target is set above 80%, practices with equilibrium GPR below 58.3% will ‘give up’ in the sense that they will not improve relative to their equilibrium value.


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