More than 400,000 Californians have been enrolled in county health programs since 2010. Farrah McDaid-Ting is from the California State Association of Counties.
McDaid-Ting: "We're really testing out what the ACA is designed to do, which is get care, primary care to these childless adults."
California is one of a handful of states using federal funds for the early expansion of Medicaid.
McDaid-Ting says the Low-Income Health Programs seek to bring down costs by giving uninsured adults primary care.
McDaid-Ting: "It costs a lot of money to treat someone who has a chronic condition who shows up in the ER. If we can treat that person and get that person under control with primary care, I think it will in the long run save taxpayers money."
The federal government will give almost three billion dollars to this phase of California's low-income health program.