Some believe that measuring the quality of care will discourage doctors from withholding needed care. The ability to measure quality of care is in its infancy and I believe it will take a long time until it is advanced to the point where it will effectively discourage withholding needed care. Current quality of care measurements focus on limited, easily measurable things like vaccination rates. Aspects of medical care that are currently amenable to quality of care measurements represent only a tiny fraction of the totality of medical care. Increasing numbers of people are concerned about doctors receiving financial incentives to withhold care.
Capitation is clearly a system that rewards doctors for withholding care.