{
 "id": "cms:69ec2609-5ce5-4ce1-b14c-1f8809fda2c2",
 "slug": "accountable-care-organizations",
 "source": "data.cms.gov",
 "title": "Accountable Care Organizations",
 "summary": "The Accountable Care Organizations (ACOs) data provides information on ACOs participating in the Medicare Shared Savings Program (Shared Savings Program), including their name, track status, number of years in the...",
 "description": "The Accountable Care Organizations (ACOs) data provides information on ACOs participating in the Medicare Shared Savings Program (Shared Savings Program), including their name, track status, number of years in the program, and contact information for key personnel.",
 "aliases": [],
 "keywords": [
  "Medicare",
  "Original Medicare",
  "Value-Based Care",
  "Coordinated Care",
  "Payment Models",
  "Accountable Care Organizations"
 ],
 "themes": [
  "Medicare"
 ],
 "topics": [
  "aco-value-based",
  "spending-utilization",
  "quality"
 ],
 "category": "medicare-shared-savings-program",
 "publisher": "Office of Enterprise Data and Analytics (OEDA)",
 "contact": "SharedSavingsProgram@cms.hhs.gov",
 "landing_url": "https://data.cms.gov/medicare-shared-savings-program/accountable-care-organizations",
 "csv_url": "https://data.cms.gov/sites/default/files/2026-04/358ddf60-c203-41ef-a0c6-a62a79f466ee/PY2026_Medicare_Shared_Savings_Program_Organizations.csv",
 "api_url": "https://data.cms.gov/data-api/v1/dataset/69ec2609-5ce5-4ce1-b14c-1f8809fda2c2/data",
 "api_kind": "cms-data-api",
 "preview_url": "https://data.cms.gov/data-api/v1/dataset/69ec2609-5ce5-4ce1-b14c-1f8809fda2c2/data?size=10",
 "dictionary_url": "https://data.cms.gov/resources/acos-data-dictionary",
 "dictionary_kind": "page",
 "methodology_urls": [
  "https://data.cms.gov/resources/acos-aco-participants-and-snf-affiliates-methodology"
 ],
 "state_column": null,
 "row_count": 511,
 "posted": "2026-04-16",
 "modified": "2026-04-16",
 "period_start": "2014-01-01",
 "period_end": "2026-12-31",
 "latest_period": "2026-01-01 to 2026-12-31",
 "cadence": "annually",
 "next_update": null,
 "versions": [
  {
   "label": "2026-01-02",
   "uuid": "69ec2609-5ce5-4ce1-b14c-1f8809fda2c2",
   "posted": "2026-04-16",
   "period_start": "2026-01-01",
   "period_end": "2026-12-31"
  },
  {
   "label": "2025-02-01",
   "uuid": "a9a1e2c7-a5be-46fc-b9ff-ea1c9c861263",
   "posted": "2025-09-10",
   "period_start": "2025-01-01",
   "period_end": "2025-12-31"
  },
  {
   "label": "2024-01-24",
   "uuid": "20091eb2-c18b-4f38-8758-c00e300124db",
   "posted": "2024-04-16",
   "period_start": "2024-01-01",
   "period_end": "2024-12-31"
  },
  {
   "label": "2023-01-13",
   "uuid": "ea96c3ef-0dcb-4549-9866-03f087e81a5d",
   "posted": "2023-03-06",
   "period_start": "2023-01-01",
   "period_end": "2023-12-31"
  },
  {
   "label": "2022-01-01",
   "uuid": "b9d03601-1187-4c25-aca6-5754e88ba0cf",
   "posted": "2022-01-26",
   "period_start": "2022-01-01",
   "period_end": "2022-12-31"
  },
  {
   "label": "2021-01-11",
   "uuid": "0ece71c6-1112-47b3-8f7a-5385087e7041",
   "posted": "2022-01-27",
   "period_start": "2021-01-01",
   "period_end": "2021-12-31"
  },
  {
   "label": "2020-01-07",
   "uuid": "37bec819-7143-4b81-b3e0-d2d74b2a9ea1",
   "posted": "2022-01-27",
   "period_start": "2020-01-01",
   "period_end": "2020-12-31"
  },
  {
   "label": "2019-07-31oc1",
   "uuid": "8a5f2a5a-f897-4a78-b38f-c2c74a532e25",
   "posted": "2024-01-29",
   "period_start": "2019-01-01",
   "period_end": "2019-12-31"
  },
  {
   "label": "2019-01-01",
   "uuid": "58ce66bf-aeae-499b-a3af-7607e9d6b052",
   "posted": "2022-01-27",
   "period_start": "2019-01-01",
   "period_end": "2019-12-31"
  },
  {
   "label": "2018-01-01",
   "uuid": "3b8bd4de-3e42-4cf2-9a88-b156a261d572",
   "posted": "2022-01-27",
   "period_start": "2018-01-01",
   "period_end": "2018-12-31"
  },
  {
   "label": "2017-01-01",
   "uuid": "bd0ce4bd-7306-4a0f-8cea-ba5c9e141cdd",
   "posted": "2022-01-27",
   "period_start": "2017-01-01",
   "period_end": "2017-12-31"
  },
  {
   "label": "2016-12-31",
   "uuid": "50a58526-8cf0-4f91-93ec-3712e73d559c",
   "posted": "2022-01-27",
   "period_start": "2016-01-01",
   "period_end": "2016-12-31"
  },
  {
   "label": "2015-12-31",
   "uuid": "3a6aa76e-996a-4440-a4ad-b8c441b185e7",
   "posted": "2022-01-27",
   "period_start": "2015-01-01",
   "period_end": "2015-12-31"
  },
  {
   "label": "2014-12-31",
   "uuid": "3ad5bcaf-8818-48b1-b94d-ef6faf26e297",
   "posted": "2022-01-27",
   "period_start": "2014-01-01",
   "period_end": "2014-12-31"
  }
 ],
 "columns": [
  {
   "name": "aco_id",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_name",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_service_area",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "agreement_period_num",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "initial_start_date",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "current_start_date",
   "label": null,
   "type": "date",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "re-entering_aco",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "basic_track",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "basic_track_level",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "enhanced_track",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "high_revenue_aco",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "low_revenue_aco",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "adv_pay",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aim",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aip",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "pss",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "snf_3-day_rule_waiver",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "prospective_assignment",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "retrospective_assignment",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_address",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_public_reporting_website",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_exec_name",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_exec_email",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_exec_phone",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_public_name",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_public_email",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_public_phone",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_compliance_contact_name",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "aco_medical_director_name",
   "label": null,
   "type": "string",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "lat",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "long",
   "label": null,
   "type": "number",
   "meaning": null,
   "source": "cms-api"
  },
  {
   "name": "pc_flex_agreement_status",
   "label": "ACO PC Flex Model",
   "type": "number",
   "meaning": "A voluntary model that focuses on primary care delivery in the Medicare Shared Savings Program (Shared Savings Program). “0/1 flag; =1 if the ACO is approved to participate in the ACO PC Flex model; otherwise 0”",
   "source": "cms-dictionary"
  }
 ],
 "caveats": [],
 "curated": false,
 "license": "https://www.usa.gov/government-works",
 "detail_key": "69ec2609-5ce5-4ce1-b14c-1f8809fda2c2|2026-04-16",
 "checked": "2026-10-25",
 "source_name": "data.cms.gov"
}