The first 340B cut and the Supreme Court (2018-2022)
The first Trump administration cut Medicare payments for 340B drugs in 2018, arguing hospitals were profiting on drugs bought at steep discounts. Hospitals sued. In 2022 the Supreme Court ruled against CMS because the agency had not surveyed hospitals' acquisition costs before setting the lower rate.
CMS restored the payments and had to make hospitals whole for prior years.
The decision established that CMS can cut 340B payments, but only after documenting what hospitals actually pay. Every subsequent attempt has been built around that requirement.
The 2027 rule is the first cut designed to survive the same legal challenge, because CMS ran an acquisition cost survey in early 2026 before setting the rate.
