Medicaid covers around 80 million people, at roughly $7,000 a year per recipient, which is double what the UK spends per patient.
https://www.kff.org/medicaid/state-indicator/distribution-of...
https://www.kff.org/medicaid/state-indicator/distribution-of...
https://www.kff.org/medicaid/state-indicator/medicaid-spendi...
Much of the spending is on the elderly and disabled (which both group tend to have above average medical needs).