S
Sunset Date
The expiration date of a law or government program.
Supplemental Medical Insurance (SMI) Trust Fund
Pays for Medicare Part B and Part D and funding via patient premiums and general revenue.
Sustainable Growth Rate (SGR)
A target growth rate for Medicare spending enacted by law in 1997 that, if exceeded, is supposed to trigger physician payment cuts. The SGR-triggered cuts are continuously delayed and “pushed back” year after year.