Healthcare spending totaled $3.2 trillion in 2015, up 5.8% from 2014, well above the rate of inflation, and now accounts for a dizzying 17.8% of GDP! However, it’s high-cost patients that drive these costs. The most expensive 1% of patients consume 21% of healthcare spending, the next 4% consume 28% of spending and the next 5% consume 16%. The remaining 90% of all patients consume just 35% of healthcare spending.