Patient Protection and Affordable Care Act: Largest Issuers of Health Coverage Participated in Most Exchanges, and Number of Plans Available Varied

Source: U.S. Government Accountability Office (GAO), GAO-14-657, August 29, 2014

From the summary:
Most of the largest issuers of health coverage from 2012 participated in the exchanges that the Patient Protection and Affordable Care Act (PPACA) required be established in all states in 2014. Previously, in 2012, while a large number of issuers participated in state individual and small-group markets, a small number of these participating issuers held a majority of the market share in terms of enrollment. In 2014, for both those exchanges serving the individual market and those serving the small-group market, in more than two-thirds of states the issuer with the largest share of the 2012 market participated in the 2014 exchange. In addition, in most states, other larger issuers with a 5 percent or more share of the 2012 market participated in the 2014 exchanges. Most smaller issuers with less than 5 percent of the 2012 market did not participate in the 2014 exchanges, although in many states more than one of these smaller issuers did participate. In addition, some issuers that participated in a 2014 individual or small-business exchange had not offered coverage in the respective 2012 market, although they may have offered coverage in other markets within the same state. In most states, for 2014, the issuers participating in the exchanges represented a mix of larger issuers, smaller issuers, and issuers new to that market….