Were 43% of Exchange Enrollees Insured in 2013?
As predicted, people apparently are dropping pre-existing coverage to enroll in the exchanges. Express Scripts reports that 43 percent of the enrollees in the exchange plans that it contracts with were previously enrolled in a 2013 plan that also used Express Scripts. This means that at least 43 percent of exchange enrollees had previous coverage. The actual fraction of those with previous coverage may well be higher given that a one 2013 estimate concluded that Express Scripts controlled about 40 percent of the U.S. pharmacy benefit management market.
As this blog previously reported, Express Scripts also reported that exchange enrollees used 47 percent more specialty medications, drugs that account for more than a quarter of the nation’s spending on prescription drugs. The increased medication use is not surprising given that many states moved the people in their high risk pools into the exchanges.
The Express Scripts analysis was based on a national sample of more than 650,000 pharmacy claims from approximately 423,000 people enrolled in a public health insurance exchange from January 1, 2014 to February 24, 2014.