Market Intelligence Report |Of the 326 million individuals in the United States, approximately 21.2 million adults (9%) have a diagnosis of serious mental illness. In 2016, 17.9 million adults had a diagnosis of serious mental illness – also representing 9% of the population. Of the individuals with an SMI, the majority, 6.42 million (30%) have health care coveage through commercial health plans in 2018. The second largest insurer of individuals with SMI, with 6.38 million (30%) people, was Medicare. This is a change from 2016, when 34% of adults with an SMI were covered by commercial insurance and 23% had . . .