A CMS spokesperson tells Inside Health Policy that about 2 percent of subsidized exchange plan members were dually enrolled in Medicaid or CHIP in the states that were able to compare enrollment numbers, which, when using HHS' most recent enrollment figures, equals about 100,000 of approximately 5 million subsidized exchange members in those 27 states. The agency also revealed that some consumers in the states that were able to fully participate in the periodic data matching (PDM) process may...