Original Medicare Enrollment

The Original Medicare Enrollment tables provide data on characteristics of the Original Medicare population.

These data, previously published as CMS Program Statistics (CPS), do not exist in a machine-readable format yet, 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 9.  Original Medicare Enrollment:  Part A and/or Part B Total, Aged, and Disabled Enrollees, Yearly Trend MDCR ENROLL AB 10.  Original Medicare Enrollment: Part A and/or Part B Enrollees, by Age Group, Yearly Trend MDCR ENROLL AB 11.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Demographic Characteristics MDCR ENROLL AB 12.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Type of Entitlement and Demographic Characteristics MDCR ENROLL AB 13.  Original Medicare Enrollment:  Part A and/or Part B Total, Aged, and Disabled Enrollees, by Area of Residence MDCR ENROLL AB 14.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Type of Entitlement and Area of Residence

Data and Resources

Field Value
accessLevel public
accrualPeriodicity R/P1Y
bureauCode {009:38}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://healthdata.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
dataQuality true
describedBy https://data.cms.gov/resources/medicare-summary-reports-glossary
identifier https://data.cms.gov/data-api/v1/dataset/3997fb87-a6d5-41d0-823f-7a62283e8035/data-viewer
issued 2021-12-22
landingPage https://data.cms.gov/summary-statistics-on-beneficiary-enrollment/medicare-and-medicaid-reports/original-medicare-enrollment
language {en-US}
license https://www.usa.gov/government-works
modified 2022-02-03
programCode {009:000}
publisher Centers for Medicare & Medicaid Services
references {https://data.cms.gov/resources/medicare-and-medicaid-reports-methodology}
resource-type Dataset
source_datajson_identifier true
source_hash 4a21278f5894966c288eb5dab8b80b7be81b155a
source_schema_version 1.1
temporal 2013-01-01/2020-12-31
theme {Medicare}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • beneficiary-enrollment
  • ckan
  • geo
  • geoss
  • health-equity
  • medicare
  • national
  • north-america
  • original-medicare
  • states-territories
  • united-states
isopen False
license_id other-license-specified
license_title other-license-specified
maintainer CMS Program Statistics - OEDA
maintainer_email IPAG_Data_Products@cms.hhs.gov
metadata_created 2025-11-20T18:33:54.983264
metadata_modified 2025-11-20T18:33:54.983268
notes The Original Medicare Enrollment tables provide data on characteristics of the Original Medicare population. These data, previously published as CMS Program Statistics (CPS), do not exist in a machine-readable format yet, 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 9.  Original Medicare Enrollment:  Part A and/or Part B Total, Aged, and Disabled Enrollees, Yearly Trend MDCR ENROLL AB 10.  Original Medicare Enrollment: Part A and/or Part B Enrollees, by Age Group, Yearly Trend MDCR ENROLL AB 11.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Demographic Characteristics MDCR ENROLL AB 12.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Type of Entitlement and Demographic Characteristics MDCR ENROLL AB 13.  Original Medicare Enrollment:  Part A and/or Part B Total, Aged, and Disabled Enrollees, by Area of Residence MDCR ENROLL AB 14.  Original Medicare Enrollment:  Part A and/or Part B Enrollees, by Type of Entitlement and Area of Residence
num_resources 8
num_tags 13
title Original Medicare Enrollment