KFF March 6, 2024
More than 65 million people—nearly 20% of the U.S. population—receive their health insurance coverage through the federal Medicare program. In 2021, Medicare spending comprised one-fifth (21%) of national health care spending and 13% of the federal budget. The largest share of total Medicare spending (48% in 2021) is dedicated to Part B services, including physician services, outpatient services, and physician-administered drugs, and accounts for 26% of national payments for physician and clinical services.
Each year, the Centers for Medicare and Medicaid Services (CMS) updates Medicare payments to physicians and other clinicians through rulemaking, based on parameters established under law. In November 2023, CMS finalized a 3.4% decrease in the physician fee schedule conversion factor, a key aspect of payment rates...