ISASS Comments on 2021 Medicare Outpatient Prospective Payment System/Ambulatory Surgical Center (OPPS/ASC) Proposed Rule ISASS submitted a comment letter to the Centers for Medicare and Medicaid Services (CMS) on the 2021 OPPS/ASC Proposed Rule on October 2, 2021. The ISASS letter addressed several areas of interest and relevance to ISASS members, including the proposed reduction...