In 2015, brand-name specialty drugs accounted for about 30 percent of net spending on prescription drugs under Medicare Part D and Medicaid, but they accounted for only about 1 percent of all prescriptions dispensed in each program.
CBO
2019-03-18
<a rel="nofollow" class="external free" href="https://www.cbo.gov/publication/54964">https://www.cbo.gov/publication/54964</a>