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.

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 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 Trend MDCR ENROLL AB 16. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Age Group, Yearly Trend MDCR ENROLL AB 17. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Demographic Characteristics MDCR ENROLL AB 18. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Demographic Characteristics MDCR ENROLL AB 19. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Total, Aged, and Disabled Enrollees, by Area of Residence MDCR ENROLL AB 20. Medicare Advantage and Other Health Plan Enrollment: Part A and/or Part B Enrollees, by Type of Entitlement and Area of Residence

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 2022, approximately ** percent of all Medicare Advantage enrollees were aged between 65 and 74 years in the United States. This statistic depicts the distribution of Medicare Advantage (MA) enrollees in the United States in 2022, by age.

In 2024, ** percent of Medicare's Advantage enrollment was insured through United Healthcare. Medicare Advantage is an option that allows beneficiaries to receive care management from private health plan networks in the United States. It often also provides prescription drug benefits to beneficiaries without them having to enroll in a stand-alone Part D drug plan. This statistic shows the distribution of Advantage enrollment in 2024, by firm.

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. 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

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 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.

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.

The CMS Program Statistics - Medicare-Medicaid Enrollment tables provide data on characteristics of the Medicare-Medicaid enrollee 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 40. Medicare-Medicaid Enrollment (MME): Total Medicare-Medicaid Enrollees by Type of Eligibility, Yearly Trend MDCR ENROLL AB 41. Medicare-Medicaid Enrollment (MME): Total Medicare-Medicaid Enrollees by Type of Eligibility and by Demographic Characteristics MDCR ENROLL AB 42. Medicare-Medicaid Enrollment (MME): Total Medicare-Medicaid Enrollees by Type of Eligibility and Area of Residence MDCR ENROLL AB 43. Medicare-Medicaid Enrollment (MME): Original Medicare Enrollees by Type of Eligibility, Yearly Trend MDCR ENROLL AB 44. Medicare-Medicaid Enrollment (MME): Original Medicare Enrollees by Type of Eligibility and by Demographic Characteristics MDCR ENROLL AB 45. Medicare-Medicaid Enrollment (MME): Original Medicare Enrollees by Type of Eligibility and Area of Residence MDCR ENROLL AB 46. Medicare-Medicaid Enrollment (MME): Medicare Advantage and Other Health Plan Enrollees by Type of Eligibility, Yearly Trend MDCR ENROLL AB 47. Medicare-Medicaid Enrollment (MME): Medicare Advantage and Other Health Plan Enrollees by Type of Eligibility and by Demographic Characteristics MDCR ENROLL AB 48. Medicare-Medicaid Enrollment (MME): Medicare Advantage and Other Health Plan Enrollees by Type of Eligibility and Area of Residence

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

This dataset tracks the updates made on the dataset "Dual Medi-Cal Enrollment and Medicare Advantage Enrollment in the Medicare Population in California Counties" as a repository for previous versions of the data and metadata.

By 2025, around ** percent of all Medicare Advantage beneficiaries were enrolled in special needs plans (SNPs). SNPs penetration rate has significantly increased in the provided time interval. This statistic shows the SNPs penetration into the total Medicare Advantage (MA) market in the United States from 2020 to 2025.

In 2022, **** million Medicare Advantage beneficiaries were enrolled in PPO plans. Medicare Advantage is the private plan alternative to traditional Medicare and often provides prescription benefits to the beneficiary without them having to enroll in a stand-alone Part D drug plan. This statistic displays the Medicare Advantage enrollment in the United States by plan type from 2014 to 2022.

The CMS Program Statistics - Medicare Advantage, Skilled Nursing Facility tables provide utilization data for skilled nursing facilities, by Medicare Advantage beneficiaries.

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

Below is the list of tables:

MDCR SNF MA 1. Medicare Skilled Nursing Facilities: Utilization for Medicare Advantage Beneficiaries, by Type of Entitlement, Yearly Trend
MDCR SNF MA 2. Medicare Skilled Nursing Facilities: Utilization for Medicare Advantage Beneficiaries, by Demographic Characteristics and Medicare-Medicaid Enrollment Status
MDCR SNF MA 3. Medicare Skilled Nursing Facilities: Utilization for Medicare Advantage Beneficiaries, by Area of Residence

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.

https://www.cms.gov/Medicare/Health-Plans/HealthPlansGenInfo/ReportsFilesData

Trend Reports

This page was added due to popular request at the Sep 2004 Enrollment conference. It contains several useful trend and competition indicators. Certain files will be updated monthly while others will be updated quarterly. This page Contains links to the following 4 Excel files: 13 Month Trend Report

(Zipped Excel and cvs files 127K) Updated 11-02-2005

Note: The typically 1% difference among CMS reports on monthly plan enrollment is due to different run times. Despite these differences, growth indicators tend to be very stable. Therefore, the data is reliable and can be used for projections. Effective September 2005 the 13-month report will contain snapshots from two components of the CMS data system.

This file contains all Medicare Advantage Plans.
This file contains 13 Months of enrollments for each plan.
The file contains two trend indicators:
  Current Month Growth and
  Month Growth over year
(Eff 9-05) This file contains 13-month snapshots from two components of the CMS data system
The file also contains for each plan: Regional Office, Effective Date Organization Type, Geographic Region

Trends By State By Quarter Report

(Zipped Excel file 30K) Updated 10-17-2005

The file contains trends for all 50 states and some protectorates. For each state and each quarter the file contains:

total state eligibles
total state Medicare Advantage Enrollment
Penetration

The file contains excel bar charts showing trends in Penetration for the year. The file is organized by the 10, Center For Medicare And Medicaid Services, Regional Offices. Each Regional Office oversees several states. Competition Macro by Plan / Counties

The Competition Macro may be found in the Geographic Service Area file which is linked to the HealthPlans/ReportFilesData page. The competition macro enables one to review:

Enrollment, eligibles and penetration
  for all plans
  and/or for all relevant counties
  In a given area of counties

By RO Type Report

(Zipped Excel and csv files 87K) Updated 11-02-2005

Note: The 1% difference among CMS reports in July 2005 total plan enrollment is due to different run times. These run time differences will be corrected in the future. The By RO Type report presents:

Both the Number and Percent of
Both Medicare Advantage Organizations and Enrollees
By Regional Office and Organization Type

This dataset tracks the updates made on the dataset "Medicare Advantage & Other Health Plan Enrollment" as a repository for previous versions of the data and metadata.

The CMS Program Statistics – Medicare Advantage, Physician, Non-Physician Practitioner and Supplier tables provide utilization data for physician, non-physician practitioners, and suppliers, by Medicare Advantage beneficiaries. 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 PHYSSUPP MA 1. Medicare Physicians, Non-Physician Practitioners, and Suppliers: Utilization for Medicare Advantage Beneficiaries, by Type of Entitlement, Yearly Trend MDCR PHYSSUPP MA 2. Medicare Physicians, Non-Physician Practitioners, and Suppliers: Utilization for Medicare Advantage Beneficiaries, by Demographic Characteristics and Medicare-Medicaid Enrollment Status MDCR PHYSSUPP MA 3. Medicare Physicians, Non-Physician Practitioners, and Suppliers: Utilization for Medicare Advantage Beneficiaries, by Area of Residence MDCR PHYSSUPP MA 4. Medicare Physicians, Non-Physician Practitioners, and Suppliers: Utilization for Medicare Advantage Beneficiaries, by Place of Service MDCR PHYSSUPP MA 5. Medicare Physicians, Non-Physician Practitioners, and Suppliers: Utilization for Medicare Advantage Beneficiaries, by Restructured BETOS Classification System