Officials at the U.S. Office of Personnel Management (OPM) say the Multi-State Plan (MSP) program has about 450,000 enrollees.
Insurers are offering about 200 MSP options in the District of Columbia and 35 states, officials at the OPM National Healthcare Operations division say in a new MSP market overview.
In 2014, insurers were offering about 150 MSP options in the District of Columbia and 30 states. MSPs had about 370,000 in 2014 enrollees.
See also: Economist: Give would-be multi-state plans a discount
Drafters of the Patient Protection and Affordable Care Act (PPACA) created MSPs in an effort to create health insurers that could escape from some of the usual state-by-state oversight that affects insurers with operations in multiple states.