The federal HealthCare.gov site will have 1,000 more people at its call center. More insurance assistants, known as navigators, have been added in many states.
Officials from states that run their own health care exchanges said they also are broadening their reach and methods to get as many people enrolled and re-enrolled as possible.
During a conference call hosted by the non-profit group Families USA, state officials said they are targeting groups that are sometimes hard to reach, such as "young invincibles" and residents who don't speak English. States are offering information in different languages and increasing the numbers of customer service representatives at call centers.