As the Affordable Care Act (ACA) kicks in today, Health and Human Services (HHS) says 2.1 million people will be covered through marketplace sign-ups and another 4 million will gain Medicaid coverage.
HHS Secretary Kathleen Sibelius said that "we expect those numbers will continue to grow over time."
People have until March 31 to buy private insurance and avoid paying a penalty for not having health insurance.