CMS Releases Latest Enrollment Figures for Medicare, Medicaid, and Children’s Health Insurance Program (CHIP), and ACA Marketplaces


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Today, the Centers for Medicare & Medicaid Services (CMS) released the latest enrollment figures for Medicare, Medicaid, and the Children’s Health Insurance Program (CHIP). These programs serve as key connectors to care for more millions of Americans.


As of December 2022, 65,489,211 people are enrolled in Medicare. This is an increase of 116,430 since the last report.

  • 35,206,920 are enrolled in Original Medicare.
  • 30,282,291 are enrolled in Medicare Advantage or other health plans. This includes enrollment in Medicare Advantage plans with and without prescription drug coverage.
  • 50,778,441 are enrolled in Medicare Part D. This includes enrollment in stand-alone prescription drug plans as well as Medicare Advantage plans that offer prescription drug coverage.

Over 12 million individuals are dually eligible for Medicare and Medicaid, so are counted in the enrollment figures for both programs. 

Detailed enrollment data can be viewed here: The data now include counts of Part D enrollees receiving the low income subsidy.

Medicaid and Children’s Health Insurance Program (CHIP)

As of December 2022, 92,340,585 people are enrolled in Medicaid and CHIP. This is an increase of 512,406 since the last report. 

  • 85,280,085 are enrolled in Medicaid
  • 7,060,500 are enrolled in CHIP

For more information on Medicaid/CHIP enrollment, including enrollment trends, visit

2022-2023 Marketplace Open Enrollment

The Biden-Harris Administration announced that a record-breaking more than 16.4 million people have selected an Affordable Care Act (ACA) Marketplace health plan nationwide during the 2023 Marketplace Open Enrollment Period (OEP) that ran from November 1, 2022-January 15, 2023 for most Marketplaces.

Enrollment has increased year-over-year, with 1.8 million more consumers signing up for coverage during the 2023 open enrollment compared to the 2022 open enrollment, a 13% increase, and nearly 4.4 million more consumers signing up compared to the 2021 open enrollment, a 36% increase.

To view the 2023 Open Enrollment Report, visit:

Every day, CMS ensures that people across the U.S. have coverage that works. See the latest coverage totals across all CMS programs at This information is updated on a monthly basis. Enrollment data for CMS programs are compiled on different timelines owing to the unique nature of each program.