CMS proposes mandatory 340B claims data reporting in 2027 PFS

ArentFox Schiff reports the 2027 Physician Fee Schedule proposed rule includes a requirement for 340B hospitals to report claims data for drugs purchased under the discount program. This move is part of CMS's effort to collect comprehensive data on 340B utilization and spending, which has been contentious. The agency has not specified how it will use the data, but industry analysts expect it will inform future policy on 340B reimbursement, particularly for Medicare Part B drugs. The comment period for the proposed rule is open until September 2026. Monitor the final rule for any changes to the reporting mandate.