Overall national health spending grew at a rate of 3.9 percent in 2017, almost 1.0 percentage point slower than growth in 2016, according to a study conducted by the Office of the Actuary at the Centers for Medicare & Medicaid Services (CMS. Medicare spending grew at about the same rate in 2017 as in 2016, while Medicaid spending grew at a slower rate in 2017 than in 2016.
The report can be obtained at https://www.cms.gov/Research-Statistics-Data-and-Systems/Statistics-Trends-and-Reports/NationalHealthExpendData/NationalHealthAccountsHistorical.html.