1. Centers for Medicare and Medicaid Services. NHE summary including share of GDP CY 1960–2018 (ZIP).https://www.cms.gov/Research‐Statistics‐Data‐and‐Systems/Statistics‐Trends‐and‐Reports/NationalHealthExpendData/NationalHealthAccountsHistorical. Accessed October 15 2020.
2. Public Law 111–148 (124 Stat. 119; Date: 3/23/2010)
3. Public Law 114–10 (129 Stat. 87; Date: 4/16/2015)
4. The Consolidated Appropriations Act of 2021(Public Law 116–260; Date: 12/27/2020) froze the minimum threshold levels of participation required to achieve Advanced APM status for two years. With its passage thresholds that apply for payment year 2022 continue to apply for payment years 2023 and 2024 rather than increasing as originally specified in MACRA.
5. Centers for Medicare and Medicaid Services Office of the Actuary. Estimated financial effects of the Medicare Access and CHIP Reauthorization Act of 2015 (H.R. 2). April 9 2015.https://www.cms.gov/Research‐Statistics‐Data‐and‐Systems/Research/ActuarialStudies/Downloads/2015HR2a.pdf. Accessed February 24 2020.