{
 "id": "cms:041d68a9-3212-42f3-89d5-b23e82103576",
 "slug": "next-generation-accountable-care-organization-model-data",
 "source": "data.cms.gov",
 "title": "Next Generation Accountable Care Organization Model Data",
 "summary": "The Next Generation Accountable Care Organization (NGACO) dataset includes summary‑level information on organizational performance, including aligned beneficiary counts, spending benchmarks, performance‑year...",
 "description": "The Next Generation Accountable Care Organization (NGACO) dataset includes summary‑level information on organizational performance, including aligned beneficiary counts, spending benchmarks, performance‑year expenditures, shared savings or losses, quality performance, and high‑level breakdowns of Medicare service‑category spending.",
 "aliases": [],
 "keywords": [
  "Medicare",
  "Original Medicare",
  "Value-Based Care",
  "Coordinated Care",
  "Financials",
  "Payment Models",
  "Accountable Care Organizations"
 ],
 "themes": [
  "Medicare"
 ],
 "topics": [
  "aco-value-based",
  "spending-utilization",
  "quality"
 ],
 "category": "cms-innovation-center-programs",
 "publisher": "Office of Enterprise Data and Analytics (OEDA)",
 "contact": "cmmi-dataset-support@cms.hhs.gov",
 "landing_url": "https://data.cms.gov/cms-innovation-center-programs/accountable-care-models/next-generation-accountable-care-organization-model-data",
 "csv_url": "https://data.cms.gov/sites/default/files/2026-03/5e4e4f96-38a7-4633-a3e7-cc57baeed4ae/PY6_PUF_NGACO.csv",
 "api_url": "https://data.cms.gov/data-api/v1/dataset/041d68a9-3212-42f3-89d5-b23e82103576/data",
 "api_kind": "cms-data-api",
 "preview_url": "https://data.cms.gov/data-api/v1/dataset/041d68a9-3212-42f3-89d5-b23e82103576/data?size=10",
 "dictionary_url": "https://data.cms.gov/resources/next-generation-aco-model-data-dictionary",
 "dictionary_kind": "page",
 "methodology_urls": [
  "https://data.cms.gov/resources/next-generation-aco-model-data-methodology"
 ],
 "state_column": null,
 "row_count": 35,
 "posted": "2026-03-27",
 "modified": "2026-03-27",
 "period_start": "2016-01-01",
 "period_end": "2021-12-31",
 "latest_period": "2021-01-01 to 2021-12-31",
 "cadence": "annually",
 "next_update": null,
 "versions": [
  {
   "label": "2021-12-01",
   "uuid": "041d68a9-3212-42f3-89d5-b23e82103576",
   "posted": "2026-03-27",
   "period_start": "2021-01-01",
   "period_end": "2021-12-31"
  },
  {
   "label": "2020-12-01",
   "uuid": "a2091f41-1039-4a7b-baf4-befc23ff173d",
   "posted": "2026-03-27",
   "period_start": "2020-01-01",
   "period_end": "2020-12-31"
  },
  {
   "label": "2019-12-01",
   "uuid": "277e5f39-4aa2-429d-825d-a77193967e81",
   "posted": "2026-03-27",
   "period_start": "2019-01-01",
   "period_end": "2019-12-31"
  },
  {
   "label": "2018-12-01",
   "uuid": "89f593cb-4983-41e1-967e-f2dd5e1636da",
   "posted": "2026-03-27",
   "period_start": "2018-01-01",
   "period_end": "2018-12-31"
  },
  {
   "label": "2017-12-01",
   "uuid": "6c600605-57bb-4649-a938-739b7fa3a1eb",
   "posted": "2026-03-27",
   "period_start": "2017-01-01",
   "period_end": "2017-12-31"
  },
  {
   "label": "2016-12-01",
   "uuid": "32c7d7f5-059e-4378-9ae2-29912dd324ca",
   "posted": "2026-03-27",
   "period_start": "2016-01-01",
   "period_end": "2016-12-31"
  }
 ],
 "columns": [
  {
   "name": "ACO_ID",
   "label": "Accountable Care Organization Identifier",
   "type": "string",
   "meaning": "ACO ID",
   "source": "cms-dictionary"
  },
  {
   "name": "ACO_NAME",
   "label": "Accountable Care Organization Name",
   "type": "string",
   "meaning": "ACO name",
   "source": "cms-dictionary"
  },
  {
   "name": "PERF_YR",
   "label": "Performance Year",
   "type": "string",
   "meaning": "Performance Year",
   "source": "cms-dictionary"
  },
  {
   "name": "PBP_ELECTION",
   "label": "ACO Population-Based Payment Election",
   "type": "string",
   "meaning": "ACO elected Population-Based Payment",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_ARRANGEMENT",
   "label": "Risk Arrangement",
   "type": "string",
   "meaning": "Percentage of Gross Savings or Losses shared by an NGACO. The Risk Arrangement can be either Partial Risk (80%) or Full Risk (100%).",
   "source": "cms-dictionary"
  },
  {
   "name": "BENE_CT",
   "label": "Performance Year Aligned Beneficiary Count",
   "type": "number",
   "meaning": "Number of Aligned Beneficiaries in Performance Year",
   "source": "cms-dictionary"
  },
  {
   "name": "MNTH_PY",
   "label": "Performance Year Eligible Months for Aligned Beneficiaries",
   "type": "number",
   "meaning": "Eligible months accrued by Aligned Beneficiaries in Performance Year",
   "source": "cms-dictionary"
  },
  {
   "name": "BNMRK_EXPND",
   "label": "Benchmark Expenditure",
   "type": "number",
   "meaning": "Benchmark Expenditure",
   "source": "cms-dictionary"
  },
  {
   "name": "PERF_YR_EXPND",
   "label": "Performance Year Expenditure",
   "type": "number",
   "meaning": "Performance Year Expenditure",
   "source": "cms-dictionary"
  },
  {
   "name": "GROSS_SAVINGS",
   "label": "Gross Savings (Loss)",
   "type": "number",
   "meaning": "Gross Savings (Loss) - Benchmark less Performance Year Expenditure",
   "source": "cms-dictionary"
  },
  {
   "name": "SHARED_SAVINGS",
   "label": "Shared Savings (Loss)",
   "type": "number",
   "meaning": "Shared Savings (Loss)",
   "source": "cms-dictionary"
  },
  {
   "name": "QUAL_SCRE",
   "label": "Quality Score",
   "type": "number",
   "meaning": "Quality Score (included as a %)",
   "source": "cms-dictionary"
  },
  {
   "name": "MNTH_AD_BY1",
   "label": "Eligible Months Aged & Disabled Base Year 1 Experience",
   "type": "number",
   "meaning": "Eligible Months accruing to Aged & Disabled Benchmark in Base Year 1",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_AD_BY1",
   "label": "Expenditure Aged & Disabled Base Year 1 Experience",
   "type": "number",
   "meaning": "Base Year Expenditure 1 for Aged & Disabled Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_AD_BY1",
   "label": "Risk Score Aged & Disabled Base Year 1 Experience",
   "type": "number",
   "meaning": "Base year 1 Risk Score for Aged & Disabled Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "MNTH_AD_BY2",
   "label": "Eligible Months Aged & Disabled Base Year 2 Experience",
   "type": "number",
   "meaning": "Eligible Months accruing to Aged & Disabled Benchmark in Base Year 2",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_AD_BY2",
   "label": "Expenditure Aged & Disabled Base Year 2 Experience",
   "type": "number",
   "meaning": "Base Year Expenditure 2 for Aged & Disabled Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_AD_BY2",
   "label": "Risk Score Aged & Disabled Base Year 2 Experience",
   "type": "number",
   "meaning": "Base year 2 Risk Score for Aged & Disabled Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_AD_PY",
   "label": "Risk Score Aged & Disabled Performance Year Experience",
   "type": "number",
   "meaning": "Performance Year Risk Score for Aged & Disabled Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "MNTH_ESRD_BY1",
   "label": "Eligible Months ESRD Base Year 1 Experience",
   "type": "number",
   "meaning": "Eligible Months accruing to ESRD Benchmark in Base Year 1",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_ESRD_BY1",
   "label": "Expenditure ESRD Base Year 1 Experience",
   "type": "number",
   "meaning": "Base Year 1 Expenditure for ESRD Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_ESRD_BY1",
   "label": "Risk Score ESRD Base Year 1 Experience",
   "type": "number",
   "meaning": "Base year 1 Risk Score for ESRD Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "MNTH_ESRD_BY2",
   "label": "Eligible Months ESRD Base Year 2 Experience",
   "type": "number",
   "meaning": "Eligible Months accruing to ESRD Benchmark in Base Year 2",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_ESRD_BY2",
   "label": "Expenditure ESRD Base Year 2 Experience",
   "type": "number",
   "meaning": "Base Year 2 Expenditure for ESRD Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_ESRD_BY2",
   "label": "Risk Score ESRD Base Year 2 Experience",
   "type": "number",
   "meaning": "Base year 2 Risk Score for ESRD Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "RISK_SCRE_ESRD_PY",
   "label": "Risk Score ESRD Performance Year Experience",
   "type": "number",
   "meaning": "Performance Year Risk Score for ESRD Experience",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH10",
   "label": "Home Health Expenditure (NCH 10)",
   "type": "number",
   "meaning": "Home Health Expenditure (National Claims History Claim Type 10)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH20",
   "label": "Skilled Nursing Facility Expenditure (NCH 20)",
   "type": "number",
   "meaning": "SNF Expenditure (NCH Claim Type 20)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH30",
   "label": "Skilled Nursing Facility/Distinct Part Unit Expenditure (NCH 30)",
   "type": "number",
   "meaning": "SNF/DPU Expenditure (NCH Claim Type 30)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH40",
   "label": "Outpatient Expenditure (NCH 40)",
   "type": "number",
   "meaning": "Outpatient Expenditure (NCH Claim Type 40)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH50",
   "label": "Hospice Expenditure (NCH 50)",
   "type": "number",
   "meaning": "Hospice Expenditure (NCH Claim Type 50)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH60",
   "label": "Inpatient Expenditure (NCH 60)",
   "type": "number",
   "meaning": "Inpatient Expenditure (NCH Claim Type 60)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH71",
   "label": "Professional Claims Expenditure (NCH 71)",
   "type": "number",
   "meaning": "Professional Claims Expenditure (NCH Claim Type 71)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH72",
   "label": "Professional Claims/Other Expenditure (NCH 72)",
   "type": "number",
   "meaning": "Professional Claims/Other Expenditure (NCH Claim Type 72)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH81",
   "label": "Durable Medical Equipment Regional Carrier/Durable Medical Equipment, Prosthetics, Orthotics, and Supplies Expenditure (NCH 81)",
   "type": "number",
   "meaning": "DMERC/DMEPOS Expenditure (NCH Claim Type 81)",
   "source": "cms-dictionary"
  },
  {
   "name": "EXPND_NCH82",
   "label": "Durable Medical Equipment Regional Carrier/Other Expenditure (NCH 82)",
   "type": "number",
   "meaning": "DMERC/Other Expenditure (NCH Claim Type 82)",
   "source": "cms-dictionary"
  }
 ],
 "caveats": [],
 "curated": false,
 "license": "https://www.usa.gov/government-works",
 "detail_key": "041d68a9-3212-42f3-89d5-b23e82103576|2026-03-27",
 "checked": "2026-10-25",
 "source_name": "data.cms.gov"
}