from the summary:
In 2010, total U.S. health-related expenditures were an estimated $3.2 trillion or 23.9 percent higher than reported in the National Health Expenditure Accounts (NHEA). This translates to $10,392 per person.
An additional $621 billion in direct and indirect costs was estimated for goods and services above what is captured in NHEA accounting. Of this additional amount, $492 billion (79 percent) is the imputed value of unpaid supervisory care given to individuals by family or friends.
The hidden costs of U.S. health care: Consumer discretionary health care spending. a study by the Deloitte Center for Health Solutions, estimates U.S. health-related spending by taking a broad view of direct and indirect costs as well as items such as alternative medicines, functional foods, and the imputed cost of supervisory care.