The Service Employees International Union, the largest union of healthcare workers in the United States, has formed a new union called SEIU Healthcare.

Dennis Rivera, president of 1199 SEIU in New York, the nation’s largest local union of healthcare workers, plans to leave his position to chair the new union. The move is expected to become final this spring.

Nearly 1 million healthcare members, including nursing home workers, will be a part of this new union. The goal of the new union is to unite America’s 10 million healthcare workers “to stand up for quality care, comprehensive healthcare reform, and good jobs,” the SEIU said in a press release.