Skip to main content
. Author manuscript; available in PMC: 2016 Oct 16.
Published in final edited form as: Am J Health Econ. 2015 Oct 16;1(4):399–431. doi: 10.1162/AJHE_a_00024

FIGURE 1. MA managed care penetration: Share of Medicare beneficiaries enrolled in managed care in 2011.

FIGURE 1

Data source: Medicare Denominator File, CMS, 2011.

Note: MA managed care penetration rate is calculated as the total number of Medicare beneficiaries enrolled in an HMO or PPO plan in January of 2011 divided by the total number of Medicare beneficiaries.