This statistic shows the enrollment figures in the Medicare program from 1966 to 2023, by type of beneficiary. In 2011, there were over ** million who benefited from Medicare due to their age, while a further *** million benefited on grounds of disability. By 2024, while the number of Medicare beneficiaries due to age have grown to **** million, the number of enrollees due to disability have gradually decreased and was also *** million in 2024.

In 2004, *** million Medicare beneficiaries were enrolled in Medicare Advantage (MA) plans, by 2024, this has reached ** million. MA penetration within total Medicare has also increased. Medicare Advantage is the private plan alternative to traditional Medicare and often provides prescription benefits to the beneficiary. This statistic depicts the Medicare Advantage (MA) enrollment in the United States from 2004 to 2024.

The Medicare Monthly Enrollment data provides current monthly information on the number of Medicare beneficiaries with hospital/medical coverage and prescription drug coverage, available for several geographic areas including national, state/territory, and county. The hospital/medical coverage data can be broken down further by health care delivery (Original Medicare versus Medicare Advantage and Other Health Plans) and the prescription drug coverage data can be examined by those enrolled in stand-alone Prescription Drug Plans and those enrolled in Medicare Advantage Prescription Drug plans. The dataset provides monthly and yearly enrollee trends.

This data set accompanies the Profile of the California Medicare Population chartbook, published by the Office of Medicare Innovation and Integration in February 2022, and available at (https://www.dhcs.ca.gov/services/Documents/OMII-Medicare-Databook-February-18-2022.pdf). The three data files in this data set were analyzed from federal administrative data (the Medicare Master Beneficiary Summary File) for beneficiary characteristics as of March 2021. These datasets include: Medicare enrollment, Medicare Advantage enrollment (and its converse fee-for-service Medicare enrollment), dual Medi-Cal eligibility and enrollment (and its converse Medicare-only enrollment), by county. Medicare Savings Program enrollees were considered Medicare-only and not dually enrolled in Medi-Cal. All Medicare Part C beneficiaries, including PACE, Cal MediConnect and Special Needs Plans, were considered to have Medicare Advantage.

DHCS partnered with The SCAN Foundation and ATI Advisory in 2021 and 2022 to develop a series of chartbooks that provide information about Medicare beneficiaries in California. This work is supported by a grant from The SCAN Foundation to advance a coordinated and easily navigated system of high-quality services for older adults that preserve dignity and independence. For more information, visit www.TheSCANFoundation.org.

In 2021, about ***** percent of all Medicare enrolled beneficiaries in the United States were aged 85 years or older. Medicare provides low-cost health coverage to people over the age of ** and those with disabilities and certain medical conditions. This statistic depicts the distribution of Medicare enrollees in 2021, by age group.

(Source: CMS Medicare Geographic Variation Public Use File, February 2021)

The CMS Program Statistics - Medicare Advantage & Other Health Plan Enrollment tables provide data on characteristics of the population covered by Medicare Advantage & other health plans. For additional information on enrollment, providers, and Medicare use and payment, visit the CMS Program Statistics page. Below is the list of tables:MDCR ENROLL AB 15. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Total, Aged, and Disabled Enrollees, Yearly TrendMDCR ENROLL AB 16. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Age Group, Yearly TrendMDCR ENROLL AB 17. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Demographic CharacteristicsMDCR ENROLL AB 18. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Demographic CharacteristicsMDCR ENROLL AB 19. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Total, Aged, and Disabled Enrollees, by Area of ResidenceMDCR ENROLL AB 20. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Area of ResidenceResources for using and understanding the dataThe data reported in these enrollment tables are based on information gathered from CMS administrative enrollment data for beneficiaries enrolled in Medicare Advantage and Other Health Plans available from the CMS Chronic Conditions Data Warehouse.

In 2023, Alabama and Michigan had the highest rate of Medicare Advantage (MA) penetration, meaning that ** percent of Medicare beneficiaries in these three states were enrolled in MA plans rather than traditional Medicare plans. The national average was ** percent that year. This statistic depicts the leading 10 U.S. states by percentage of Medicare beneficiaries enrolled in a Medicare Advantage plan in 2024.

This site contains various Medicare enrollment tables. There are national and state enrollment trends, state enrollment by aged, disabled and all, as well as county level enrollment.

The CMS Program Statistics - Medicare Newly Enrolled tables provide data on characteristics of the newly enrolled Medicare population. For additional information on enrollment, providers, and Medicare use and payment, visit the CMS Program Statistics page. Below is the list of tables:MDCR ENROLL AB 21. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Enrollees, Yearly TrendMDCR ENROLL AB 22. Medicare Newly Enrolled Beneficiaries: Total Enrollees by Month of Enrollment, Yearly TrendMDCR ENROLL AB 23. Medicare Newly Enrolled Beneficiaries: Total Enrollees, by Demographic CharacteristicsMDCR ENROLL AB 24. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Enrollees, by Area of ResidenceMDCR ENROLL AB 25. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Original Medicare EnrolleesMDCR ENROLL AB 26. Medicare Newly Enrolled Beneficiaries: Original Medicare Enrollees by Month of Enrollment, Yearly TrendMDCR ENROLL AB 27. Medicare Newly Enrolled Beneficiaries: Original Medicare Enrollees, by Demographic CharacteristicsMDCR ENROLL AB 28. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Original Medicare Enrollees, by Area of ResidenceMDCR ENROLL AB 29. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Medicare Advantage and Other Health Plan Enrollees, Yearly TrendMDCR ENROLL AB 30. Medicare Newly Enrolled Beneficiaries: Medicare Advantage and Other Health Plan Enrollees, by Month of Enrollment, Yearly TrendMDCR ENROLL AB 31. Medicare Newly Enrolled Beneficiaries: Medicare Advantage and Other Health Plan Enrollees, by Demographic CharacteristicsMDCR ENROLL AB 32. Medicare Newly Enrolled Beneficiaries: Total, Aged, and Disabled Medicare Advantage and Other Health Plan Enrollees, by Area of ResidenceThe data reported in these enrollment tables are based on information gathered from CMS administrative enrollment data for beneficiaries newly enrolled in the Medicare program available from the CMS Chronic Conditions Data Warehouse.

The Medicare COVID-19 Hospitalization Trends dataset contains aggregate information from Medicare Fee-for-Service claims, Medicare Advantage encounter, and Medicare enrollment data. It provides insight around the groups of beneficiaries that were hospitalized at different points during the pandemic.

CMS publicly released the first Preliminary Medicare COVID-19 Snapshot in June 2020 during the early stages of the Public Health Emergency for COVID-19. That report focused on COVID-19 cases and hospitalizations data for Medicare beneficiaries with a COVID-19 diagnosis. Throughout 2020 and 2021, that report was subsequently updated with refreshed data 13 times. Beginning in October 2021, CMS shifted its public COVID-19 reporting away from cumulative case and hospitalization rates to hospitalization trends over time with the release of this report, the Medicare COVID-19 Hospitalization Trends Report.

All prior releases of both the Preliminary Medicare COVID-19 Snapshot and the Medicare COVID-19 Hospitalization Trends Report are available for download in the Medicare COVID-19 Data - Prior Releases file.

The CMS Program Statistics - Medicare Total Enrollment tables provide data on characteristics of the Medicare-covered populations.

For additional information on enrollment, providers, and Medicare use and payment, visit the CMS Program Statistics page.

These data do not exist in a machine-readable format, so the view data and API options are not available. Please use the download function to access the data.

Below is the list of tables:

MDCR ENROLL AB 1. Total Medicare Enrollment: Total, Original Medicare, and Medicare Advantage and Other Health Plan Enrollment, Yearly Trend MDCR ENROLL AB 2. Total Medicare Enrollment: Total, Original Medicare, Medicare Advantage and Other Health Plan Enrollment, and Resident Population, by Area of Residence MDCR ENROLL AB 3. Total Medicare Enrollment: Part A and/or Part B Total, Aged, and Disabled Enrollees, Yearly Trend MDCR ENROLL AB 4. Total Medicare Enrollment: Part A and/or Part B Enrollees, by Age Group, Yearly Trend MDCR ENROLL AB 5. Total Medicare Enrollment: Part A and/or Part B Enrollees, by Demographic Characteristics MDCR ENROLL AB 6. Total Medicare Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Demographic Characteristics MDCR ENROLL AB 7. Total Medicare Enrollment: Part A and/or Part B Total, Aged, and Disabled Enrollees, by Area of Residence MDCR ENROLL AB 8. Total Medicare Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Area of Residence

The Medicare Fee-For-Service Public Provider Enrollment dataset includes information on providers who are actively approved to bill Medicare or have completed the 855O at the time the data was pulled from the Provider Enrollment, Chain, and Ownership System (PECOS). The release of this provider enrollment data is not related to other provider information releases such as Physician Compare or Data Transparency. Note: This full dataset contains more records than most spreadsheet programs can handle, which will result in an incomplete load of data. Use of a database or statistical software is required.Resources for Using and Understanding the DataThese files are populated from PECOS and contain basic enrollment and provider information, reassignment of benefits information and practice location city, state and zip. These files are not intended to be used as real time reporting as the data changes from day to day and the files are updated only on a quarterly basis. If any information on these files needs to be updated, the provider needs to contact their respective Medicare Administrative Contractor (MAC) to have that information updated. This data does not include information on opt-out providers. Information is redacted where necessary to protect Medicare provider privacy.

By 2025, 54 percent of all Medicare beneficiaries were enrolled in Medicare Advantage (MA) plans. MA penetration rate has steadily increased throughout the years. Medicare Advantage is the private plan alternative to traditional Medicare and often provides prescription benefits to the beneficiary. This statistic shows the Medicare Advantage penetration into total Medicare in the United States from 2000 to 2025.

The Medicaid Managed Care Enrollment Report profiles enrollment statistics on Medicaid managed care programs on a plan-specific level. The managed care enrollment statistics include enrollees receiving comprehensive benefits and limited benefits and are point-in-time counts. Total Medicaid Enrollees represents an unduplicated count of all beneficiaries in FFS and any type of managed care, including Medicaid-only and Medicare-Medicaid ("dual") enrollees. Total Medicaid enrollment in Any Type of Managed Care represents an unduplicated count of beneficiaries enrolled in any Medicaid managed care program, including comprehensive MCOs, limited benefit MCOs, and PCCMs. The “Medicaid Enrollment in Comprehensive Managed Care” column represents an unduplicated count of Medicaid beneficiaries enrolled in a managed care plan that provides comprehensive benefits (acute, primary care, specialty, and any other), or PACE program. It excludes beneficiaries who are enrolled in a Financial Alignment Demonstration Medicare-Medicaid Plan as their only form of managed care. The “Medicaid Enrollment in Comprehensive MCOs Under ACA Section VIII Expansion” column is a subset of the total reported in column C and includes individuals who are enrolled in comprehensive MCOs and are low-income adults, with or without dependent children, eligible for Medicaid under ACA Section VIII. n/a" indicates that a state or territory was either not able to report data or does not operate a managed care program.

This statistic depicts the projected change in Medicare enrollment in the United States from 2000 to 2099. In 2000, the number of enrollees amounted to just under ** million people, whereas the projected number for the year 2060 is expected to amount to nearly ** million enrollees.

This dataset tracks the updates made on the dataset "Medicare Beneficiary Enrollment and Demographics, Washington State and Counties, 2007-2014" as a repository for previous versions of the data and metadata.

This dataset tracks the updates made on the dataset "Medicare Beneficiary Enrollment and Demographics, Washington State and Counties, 2007-2018" as a repository for previous versions of the data and metadata.

NCHS has linked data from various surveys with Medicare program enrollment and health care utilization and expenditure data from the Centers for Medicare & Medicaid Services (CMS). Linkage of the NCHS survey participants with the CMS Medicare data provides the opportunity to study changes in health status, health care utilization and costs, and prescription drug use among Medicare enrollees. Medicare is the federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease.

Medicare Beneficiary Knowledge of the Part D Program and Its Relationship with Voluntary Enrollment According to findings appearing in Medicare Beneficiary Knowledge of the Part D Program and Its Relationship with Voluntary Enrollment, published in Volume 2, Issue 4 of the Medicare and Medicaid Research Review, during the initial open enrollment period, although overall knowledge about the Part D program was limited, beneficiaries who knew correct facts about the program, like everyone has plan choices and assistance is available for low income beneficiaries, were more likely to enroll in a plan. Efforts to educate Medicare beneficiaries about the Part D program may improve rates of prescription drug coverage.