{
 "id": "cms:d8c69aca-2497-4a83-a181-706a960c77f0",
 "slug": "cms-program-statistics-medicare-part-d-enrollment",
 "source": "data.cms.gov",
 "title": "CMS Program Statistics - Medicare Part D Enrollment",
 "summary": "The CMS Program Statistics - Medicare Part D Enrollment tables provide data on characteristics of the Medicare Part D covered population.",
 "description": "The CMS Program Statistics - Medicare Part D Enrollment tables provide data on characteristics of the Medicare Part D covered 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 D 1. Medicare Part D Enrollment: Part D Enrollees by Type of Plan, Low Income Subsidy (LIS), and Retiree Drug Subsidy, Yearly Trend MDCR ENROLL D 2. Medicare Part D Enrollment: Part D Enrollees by Type of Plan, Low Income Subsidy (LIS), and Retiree Drug Subsidy, by Demographic Characteristics MDCR ENROLL D 3. Medicare Part D Enrollment: Part D Enrollees by Type of Plan, Low Income Subsidy (LIS), and Retiree Drug Subsidy, by Area of Residence",
 "aliases": [],
 "keywords": [
  "National",
  "States & Territories",
  "Medicare",
  "Medicare Advantage",
  "Medicare Prescription Drug",
  "Beneficiary Enrollment",
  "Health Equity"
 ],
 "themes": [
  "Medicare"
 ],
 "topics": [
  "medicare-enrollment",
  "drugs",
  "medicare-advantage"
 ],
 "category": "summary-statistics-on-beneficiary-enrollment",
 "publisher": "Office of Enterprise Data and Analytics (OEDA)",
 "contact": "IPAG_Data_Products@cms.hhs.gov",
 "landing_url": "https://data.cms.gov/summary-statistics-on-beneficiary-enrollment/medicare-and-medicaid-reports/cms-program-statistics-medicare-part-d-enrollment",
 "csv_url": "https://data.cms.gov/sites/default/files/2026-09/34722ca9-3ac4-47fa-87b9-0b7856a51d7d/MDCR%20ENROLL%20D_CPS_03EPD_2024.zip",
 "api_url": null,
 "api_kind": null,
 "preview_url": null,
 "dictionary_url": "https://data.cms.gov/resources/cms-program-statistics-glossary",
 "dictionary_kind": "page",
 "methodology_urls": [
  "https://data.cms.gov/resources/cms-program-statistics-methodology"
 ],
 "state_column": null,
 "row_count": null,
 "posted": "2026-09-30",
 "modified": "2026-09-30",
 "period_start": "2013-01-01",
 "period_end": "2024-12-31",
 "latest_period": "2024-01-01 to 2024-12-31",
 "cadence": "annually",
 "next_update": null,
 "versions": [
  {
   "label": "2024-01-01",
   "uuid": "81d3fe8f-0f30-40c0-882b-6c917cd89611",
   "posted": "2026-09-30",
   "period_start": "2024-01-01",
   "period_end": "2024-12-31"
  },
  {
   "label": "2023-01-01",
   "uuid": "96ae3f16-9e68-4f58-a604-a61abbb71b38",
   "posted": "2025-09-30",
   "period_start": "2023-01-01",
   "period_end": "2023-12-31"
  },
  {
   "label": "2022-01-01",
   "uuid": "89fb5d47-a17b-4cb9-ae3b-bdeb984119ec",
   "posted": "2025-09-30",
   "period_start": "2022-01-01",
   "period_end": "2022-12-31"
  },
  {
   "label": "2021-01-01",
   "uuid": "c62d1526-12b2-40ed-a8c0-446dc71d5f2a",
   "posted": "2025-09-08",
   "period_start": "2021-01-01",
   "period_end": "2021-12-31"
  },
  {
   "label": "2020-12-31",
   "uuid": "af0582a1-3706-405b-b974-cf0231f9be17",
   "posted": "2025-05-14",
   "period_start": "2020-01-01",
   "period_end": "2020-12-31"
  },
  {
   "label": "2019-12-31",
   "uuid": "5f9e4acd-5996-4ebe-8ffc-0a33ed0d3c8f",
   "posted": "2025-05-14",
   "period_start": "2019-01-01",
   "period_end": "2019-12-31"
  },
  {
   "label": "2018-12-31",
   "uuid": "123dd60a-acd9-4066-b9ed-f47893e86aad",
   "posted": "2025-05-14",
   "period_start": "2018-01-01",
   "period_end": "2018-12-31"
  },
  {
   "label": "2017-12-31",
   "uuid": "67ddfd83-be7c-414d-a194-cc70250d1d8d",
   "posted": "2025-05-14",
   "period_start": "2017-01-01",
   "period_end": "2017-12-31"
  },
  {
   "label": "2016-12-31",
   "uuid": "78439d05-e8fd-4bdd-a3f5-613f0b9de781",
   "posted": "2025-05-14",
   "period_start": "2016-01-01",
   "period_end": "2016-12-31"
  },
  {
   "label": "2015-12-31",
   "uuid": "822b230b-ab2c-4f91-8591-169a5d056b9f",
   "posted": "2025-05-14",
   "period_start": "2015-01-01",
   "period_end": "2015-12-31"
  },
  {
   "label": "2014-12-31",
   "uuid": "ffb5fe92-a8a8-4b77-acf2-36fa62fa6bfa",
   "posted": "2025-05-14",
   "period_start": "2014-01-01",
   "period_end": "2014-12-31"
  },
  {
   "label": "2013-12-31",
   "uuid": "adaca380-da17-4168-b2de-5779e48d969e",
   "posted": "2025-05-14",
   "period_start": "2013-01-01",
   "period_end": "2013-12-31"
  }
 ],
 "columns": [],
 "caveats": [],
 "curated": false,
 "license": "https://www.usa.gov/government-works",
 "detail_key": "81d3fe8f-0f30-40c0-882b-6c917cd89611|2026-09-30",
 "checked": null,
 "source_name": "data.cms.gov"
}