With 26 percent, Maine had the highest percentage of Medicare beneficiaries among its total population in 2021. This statistic depicts the top 10 U.S. states based on Medicare beneficiaries as a percentage of the total population in the calendar year 2021.

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 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.

The Medicare Geographic Variation by National, State & County dataset provides information on the geographic differences in the use and quality of health care services for the Original Medicare population. This dataset contains demographic, spending, use, and quality indicators at the state level (including the District of Columbia, Puerto Rico, and the Virgin Islands) and the county level.

Spending is standardized to remove geographic differences in payment rates for individual services as a source of variation. In general, total standardized per capita costs are less than actual per capita costs because the extra payments Medicare made to hospitals were removed, such as payments for medical education (both direct and indirect) and payments to hospitals that serve a disproportionate share of low-income patients. Standardization does not adjust for differences in beneficiaries’ health status.

In 2023, ten percent - or around 5.85 million - of all Medicare beneficiaries in the United States were Hispanic. This statistic depicts the distribution of Medicare beneficiaries in 2023, by ethnicity.

The Insurance Coverage of Noninstitutionalized Medicare Beneficiaries dataset includes data about Medicare insurance coverage beneficiaries aged 65 in the United States by age, gender, race, poverty and marital status between 1992 and 2015.

The Medicare Current Beneficiary Survey (MCBS) - Survey File Microdata Public Use File (PUF) dataset provides information on topics such as Medicare beneficiaries' access to care, health status, other information regarding beneficiaries’ knowledge of, attitudes toward, and satisfaction with their health care, as well as demographic data and information on all types of health insurance coverage.Resources for Using and Understanding the DataThis dataset is based on information from the MCBS and administrative data. The MCBS is a continuous, multi-purpose longitudinal survey covering a representative national sample of the Medicare population, including the population of beneficiaries aged 65 and over and beneficiaries aged 64 and below with certain disabling conditions. The MCBS collects this information in three data collection periods, or rounds, per year. Disclosure protections have been applied to the file, including de-identification and other methods. As a result, the MCBS Survey File Microdata file does not require a Data Use Agreement (DUA). In contrast, the MCBS Limited Data Set (LDS) releases contain beneficiary-level protected health information (PHI) and therefore require a DUA. The MCBS - Survey File Microdata file is not intended to replace the more detailed LDS files but, rather, it makes available a general-use publicly-available alternative that provides the highest degree of protection to the Medicare beneficiaries’ PHI. The main benefits of using the MCBS - Survey File Microdata file are:Increased data access for researchers of the MCBS through a free file download that is consistent with other U.S. Department of Health and Human Services (HHS) public-use survey files.Enhanced potential for policy-relevant analyses, by attracting new researchers and policymakers. Accessing the MCBS LDS can be a significant deterrent due to the associated costs and time but the MCBS - Survey File Microdata file mitigates these barriers to encourage broader utilization. A link to the more detailed MCBS LDS files is provided in the Resources section on this page. MCBS LDS data are also presented in the MCBS Chartbook linked in the Visualization section on this page.

In 2021, California reported some 6.49 million Medicare beneficiaries and therefore was the U.S. state with the highest number of beneficiaries. Medicare is a U.S. publicly funded health insurance program that covers those that are aged 65 years and older and those that have certain disabilities. This statistic depicts the leading 10 U.S. states based on their number of Medicare beneficiaries in 2021.

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.

This statistic represents the characteristics of the Medicare population in the United States in 2020. In that year, 23 percent of the Medicare population had a functional impairment that included activity of daily living limitations.

The Hospice Utilization and Payment Public Use File provides information on services provided to Medicare beneficiaries by hospice providers. The Hospice PUF contains information on utilization, payment (Medicare payment and standard payment), submitted charges, primary diagnoses, sites of service, and hospice beneficiary demographics organized by CMS Certification Number 6-digit provider identification number, and state. This PUF is based on information from CMSs Chronic Conditions Data Warehouse (CCW) data files. The data in the Hospice PUF covers calendar year 2014 and contains 100 percent final-action i.e., all claim adjustments have been resolved, hospice claims for the Medicare population including beneficiaries enrolled in a Medicare Advantage plan.
Although the Hospice PUF has a wealth of payment and utilization information about hospice services, the data set also has a number of limitations. The information presented in this file does not indicate the quality of care provided by individual hospice providers. The file only contains cost and utilization information. Additionally, the data are not risk adjusted and thus do not account for differences in patient populations. For additional limitations, please review the methodology document available below.

This dataset contains State data for all Medicare beneficiaries regardless of age. The dataset includes state and county level data that covers demographic, cost utilization and quality data for all ages. The Geographic Variation Public Use File serve as an evaluation of the utilization and quality of healthcare services according to the geographic area of the population covered by Medicare.

The CMS Program Statistics - Medicare Part A & Part B - All Types of Service tables provide use and payment data by type of coverage and type of service. 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 SUMMARY AB 1. Medicare Part A and Part B Summary: Utilization, Program Payments, and Cost Sharing for All Original Medicare Beneficiaries, by Type of Coverage and Type of Service, Yearly Trend MDCR SUMMARY AB 2. Medicare Part A and Part B Summary: Utilization, Program Payments, and Cost Sharing for Aged Original Medicare Beneficiaries, by Type of Coverage and Type of Service, Yearly Trend MDCR SUMMARY AB 3. Medicare Part A and Part B Summary: Utilization, Program Payments, and Cost Sharing for Disabled Original Medicare Beneficiaries by Type of Coverage and Type of Service, Yearly Trend MDCR SUMMARY AB 4. Medicare Part A and Part B Summary: Utilization, Program Payments, and Cost Sharing for Original Medicare Beneficiaries, by Type of Coverage, Demographic Characteristics, and Medicare-Medicaid Enrollment Status MDCR SUMMARY AB 5. Medicare Part A and Part B Summary: Utilization, Program Payments, and Cost Sharing for Original Medicare Beneficiaries, by Type of Coverage and by Area of Residence MDCR SUMMARY AB 6. Medicare Part A and Part B Summary: Utilization and Program Payments for Original Medicare Beneficiaries, by Type of Entitlement, Amount of Program Payments, Type of Coverage, and Type of Service

This series of files links two large population-based sources providing detailed data about Medicare beneficiaries with cancer. The SEER (Surveillance, Epidemiology, and End Results) program consists of clinical, demographic, and cause of death information collected from tumor registries beginning in January 1, 1973. The Medicare contribution includes all claims for covered health care services from beneficiaries’ time of eligibility until death. Linkage is processed biennially by SEER and Centers for Medicare and Medicaid Services (CMS) staff. 95% of individuals age 65 and older are included in the SEER files. Due to privacy concerns, access to this database requires an application, SEER-Medicare Data Use Agreement (DUA), and documentation of institutional review board approval. Additionally, the National Cancer Institute’s information technology contractor assesses a processing fee the amount of which is dependent upon the type and number of files requested.

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.

This data collection is the second in a series of data releases from the Medicare Current Beneficiary Survey (MCBS) relating to beneficiary access to medical care. The MCBS is a continuous, multipurpose survey of a representative sample of the Medicare population, both aged and disabled. Sample persons are interviewed three times a year over several years to form a continuous profile of their health care experience. Interviews are conducted regardless of whether the sample person resides at home or in a long-term care facility, using the questionnaire version appropriate to the setting. The MCBS also collects a variety of information about demographic characteristics (date of birth, sex, race, education, military service, and marital status), health status and functioning, access to care, sources of and satisfaction with care, insurance coverage, financial resources, and family supports. The 1992 interview data were collected during September through December of 1992, the fourth round of data collection. The 1992 data are designed to stand alone for cross-sectional analysis, or they can be used for longitudinal analysis. Weights are provided for both cross-sectional and longitudinal analysis.

The MCBS is a multipurpose survey of a nationally representative sample of the Medicare population to determine expenditures and sources of payment for all services used by Medicare beneficiaries. These include co-payments, deductibles, as well as non-covered healthcare costs. Additionally, all types of health insurance coverage has been related to sources of payment. Finally, outcomes over time were traced to assess the impacts of Medicare program changes on satisfaction with care and usual source of care. This UMB dataset is maintained by the Pharmaceutical Research Computing Center within the Department of Pharmaceutical Health Services Research at the University of Maryland School of Pharmacy. The Center provides computer programming, data management, pharmaceutical classification, and analytical support for health services research and evaluation.

Data Overview: ASPR, in partnership with the Centers for Medicare and Medicaid Services (CMS), provide de-identified and aggregated Medicare beneficiary claims data at the state/territory, county, and ZIP code levels in the HHS emPOWER Map and this public HHS emPOWER REST Service. The REST Service includes aggregated data from the Medicare Fee-For-Service (Parts A&B) and Medicare Advantage (Part C) Programs for beneficiaries who rely on electricity-dependent durable medical equipment (DME) and cardiac implantable devices.

Data includes the following DME and devices: Cardiac devices (left, right, and bi-ventricular assistive devices
  (LVAD, RVAD, BIVAD) and total artificial hearts (TAH)), ventilators
  (invasive, non-invasive and oscillating vests), bi-level positive airway
  pressure device (BiPAP), oxygen concentrator, enteral feeding tube,
  intravenous (IV) infusion pump, suction pump, end-stage renal disease
  (ESRD) at-home dialysis, motorized wheelchair or scooter, and electric
  bed.



Purpose: Over 3 million Medicare beneficiaries rely on electricity-dependent
 medical equipment, such as ventilators, to live independently in their
 homes. Severe weather and other emergencies, especially those with long
 power outages, can be life-threatening for these individuals. The HHS
 emPOWER Map and public REST Service give every public health official,
 emergency manager, hospital, first responder, electric company, and
 community member the power to discover the electricity-dependent Medicare
 population in their state/territory, county, and ZIP Code.



Data Source: The REST Service’s data is developed from Medicare Fee-For-Service
  (Part A & B) (>33M 65+, blind, ESRD [dialysis], dual-eligible,
  disabled [adults and children]) and Medicare Advantage (Part C) (>21M
  65+, blind, ESRD [dialysis], dual-eligible, disabled [adults and
  children]) beneficiary administrative claims data. This data does not
  include individuals that are only enrolled in a State Medicaid Program.
  Note that Medicare DME are subject to insurance claim reimbursement caps
  (e.g. rental caps) that differ by type, so the DME may have different
  “look-back” periods (e.g. ventilators are 13 months and oxygen
  concentrators are 36 months).



ZIP Code Aggregation: Some ZIP Codes do not have specific geospatial boundary data (e.g.,
  P.O. Box ZIP Codes). To capture the complete population data, the HHS
  emPOWER Program identified the larger boundary ZIP Code (Parent) within
  which the non-boundary ZIP Code (Child) resides. The totals are added
  together and displayed under the parent ZIP Code.




Approved Data Uses: The public HHS emPOWER REST Service is approved for use by all partners
  and is intended to be used to help inform and support emergency
  preparedness, response, recovery, and mitigation activities in all
  communities.






Privacy Protections: Protecting the privacy of Medicare beneficiaries is an essential
  priority for the HHS emPOWER Program. Therefore, all personally
  identifiable information are removed from the data and numerous
  de-identification methods are applied to significantly minimize, if not
  completely mitigate, any potential for deduction of small cells or
  re-identification risk. For example, any cell size found between the
  range of 1 and 10 is masked and shown as 11.

This data package contains the information on the number of beneficiaries of the different types of Medicare Part D Plan with prescription drug coverage, number of prescription drug plans that are eligible for low income subsidy, percent of Medicare Part D Beneficiaries that are eligible, number of prescription drug plans available per region, percent of Medicare population enrolled in the Stand Alone Prescription Drug Plan.

The Medicare Home Health Agency tables provide use and payment data for home health agencies. The tables include use and expenditure data from home health Part A (Hospital Insurance) and Part B (Medical Insurance) claims.

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 HHA 1. Medicare Home Health Agencies: Utilization and Program Payments for Original Medicare Beneficiaries, by Type of Entitlement, Yearly Trend MDCR HHA 2. Medicare Home Health Agencies: Utilization and Program Payments for Original Medicare Beneficiaries, by Demographic Characteristics and Medicare-Medicaid Enrollment Status MDCR HHA 3. Medicare Home Health Agencies: Utilization and Program Payments for Original Medicare Beneficiaries, by Area of Residence MDCR HHA 4. Medicare Home Health Agencies: Persons with Utilization and Total Service Visits for Original Medicare Beneficiaries, Type of Agency and Type of Service Visit MDCR HHA 5. Medicare Home Health Agencies: Persons with Utilization and Total Service Visits for Original Medicare Beneficiaries, by Type of Control and Type of Service Visit MDCR HHA 6. Medicare Home Health Agencies: Persons with Utilization, Total Service Visits, and Program Payments for Original Medicare Beneficiaries, by Number of Service Visits and Number of Episodes