Next Generation Accountable Care Organization Model Data

The Next Generation Accountable Care Organization (NGACO) dataset includes summary‑level information on organizational performance, including aligned…

Part of the CMS Data Feeds Dataset › Medicare

Dataplex delivers this CMS feed as the analysis-ready table DWV.NEXT_GENERATION_ACCOUNTABLE_CARE_ORGANIZATION_MODEL_DATA on Snowflake and Databricks — six annual reporting periods (2016–2021) aligned to a single schema, refreshed automatically whenever CMS publishes a new file. Every row carries lineage back to the exact CMS source file that produced it.

Key facts

Snowflake	DWV.NEXT_GENERATION_ACCOUNTABLE_CARE_ORGANIZATION_MODEL_DATA
Databricks	cms_dwv.next_generation_accountable_care_organization_model_data
Coverage	Jan 2016 – Dec 2021 (6 of 6 annual reporting periods)
Rows	225 (total across all reporting periods)
Cadence	Annual
Update pattern	Time-partitioned — each file adds one reporting year
CMS published	2026-03-27
Loaded	2026-03-27
Columns	47 data + 6 lineage
Identifiers	ACO ID
File versions	6
License	CMS public data — U.S. Government work
Platforms	Snowflake Marketplace · Databricks Delta Sharing

Included in the CMS Data Feeds Dataset — start a free trial on Snowflake Marketplace.

Current — CMS last published this feed on 2026-03-27. Coverage is complete through the 2021 reporting year. Next CMS release expected ~Mar 2027.

Time-partitioned feed — each file version covers one reporting year, so history is additive. Query the full table for all years; filter on the reporting period columns for a single period. Do not filter to the latest file only — that would return just the 2021 reporting year.

Sample queries

Snowflake

-- Each file version covers one reporting period (2016, 2017, 2018, 2019, 2020, 2021) — history is additive
SELECT *
FROM DWV.NEXT_GENERATION_ACCOUNTABLE_CARE_ORGANIZATION_MODEL_DATA
LIMIT 100;

Databricks

About this feed

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.

— Source: CMS feed metadata

Keywords: Medicare, Original Medicare, Value-Based Care, Coordinated Care, Financials, Payment Models, Accountable Care Organizations Theme: Medicare

Coverage timeline

2016 🟩 · 2017 🟩 · 2018 🟩 · 2019 🟩 · 2020 🟩 · 2021 🟩

6 of 6 annual reporting periods present — no gaps.

Release history

Reporting period	CMS published	Loaded	Latest file
2021-01-01 – 2021-12-31	2026-03-27	2026-03-27	✓
2020-01-01 – 2020-12-31	2026-03-27	2026-03-27
2019-01-01 – 2019-12-31	2026-03-27	2026-03-27
2018-01-01 – 2018-12-31	2026-03-27	2026-03-27
2017-01-01 – 2017-12-31	2026-03-27	2026-03-27
2016-01-01 – 2016-12-31	2026-03-27	2026-03-27

Data dictionary

📋 47 data columns + 6 lineage columns

Column-level definitions are maintained by CMS in the official Next Generation Accountable Care Organization Model Data data dictionary.

Data columns

Column	Type
__ACO_ID	TEXT
ACO_NAME	TEXT
PERF_YR	NUMBER
PBP_ELECTION	TEXT
RISK_ARRANGEMENT	TEXT
BENE_CT	NUMBER
MNTH_PY	NUMBER
BNMRK_EXPND	NUMBER
PERF_YR_EXPND	NUMBER
GROSS_SAVINGS	NUMBER
SHARED_SAVINGS	NUMBER
QUAL_SCRE	NUMBER
MNTH_AD_BY1	NUMBER
EXPND_AD_BY1	NUMBER
RISK_SCRE_AD_BY1	NUMBER
MNTH_AD_BY2	NUMBER
EXPND_AD_BY2	NUMBER
RISK_SCRE_AD_BY2	NUMBER
RISK_SCRE_AD_PY	NUMBER
MNTH_ESRD_BY1	NUMBER
EXPND_ESRD_BY1	NUMBER
RISK_SCRE_ESRD_BY1	NUMBER
MNTH_ESRD_BY2	NUMBER
EXPND_ESRD_BY2	NUMBER
RISK_SCRE_ESRD_BY2	NUMBER
RISK_SCRE_ESRD_PY	NUMBER
EXPND_NCH10	NUMBER
EXPND_NCH20	NUMBER
EXPND_NCH30	NUMBER
EXPND_NCH40	NUMBER
EXPND_NCH50	NUMBER
EXPND_NCH60	NUMBER
EXPND_NCH71	NUMBER
EXPND_NCH72	NUMBER
EXPND_NCH81	NUMBER
EXPND_NCH82	NUMBER
MNTH_AD_BY	NUMBER
EXPND_AD_BY	NUMBER
RISK_SCRE_AD_BY	NUMBER
RGNL_TRND_AD	NUMBER
DISCNT_AD	NUMBER
MNTH_ESRD_BY	NUMBER
EXPND_ESRD_BY	NUMBER
RISK_SCRE_ESRD_BY	NUMBER
RGNL_TRND_ESRD	NUMBER
DISCNT_ESRD	NUMBER
COVID_AMNDMNT	BOOLEAN

Lineage columns (present on every feed table)

Column	Type	Description
ROW_ID	TEXT	Unique row ID for this table (PK)
FILE_ID	TEXT	Source file — joins to FEEDS_FILES.ID (FK)
FILE_FEED_ID	TEXT	Parent feed — joins to FEEDS.ID (FK)
FILE_NAME	TEXT	Source file name as published by CMS
ROWNUM	NUMBER	Row number within the source file
CREATED_AT	TIMESTAMP_NTZ	Timestamp when the record was loaded

Row-level lineage

Every row in this table traces to the exact CMS source file that produced it. The FILE_ID column joins to the FEEDS_FILES catalog table, and FILE_FEED_ID joins to the FEEDS master table:

Trace any row back to its source file and reporting period:

SELECT d.__ACO_ID, d.ACO_NAME, d.PERF_YR,
       ff.TEMPORAL_START, ff.TEMPORAL_END, ff.CMS_FEED_MODIFIED
FROM DWV.NEXT_GENERATION_ACCOUNTABLE_CARE_ORGANIZATION_MODEL_DATA d
JOIN DWV.FEEDS_FILES ff ON d.FILE_ID = ff.ID;

Source & provenance

Published by the Centers for Medicare & Medicaid Services (bureau 009:38).

• Official CMS data dictionary

• Next Generation Aco Model Data Methodology

Frequently asked questions

How often is Next Generation Accountable Care Organization Model Data updated?

Annually. CMS last published this feed on 2026-03-27, and Dataplex loaded it to the warehouse the same day. New releases are added automatically when CMS publishes them.

What years does Next Generation Accountable Care Organization Model Data cover?

2016 through 2021 — six annual reporting periods with no gaps. Each reporting year arrives as its own file version, and all years remain queryable side by side.

How many records are in Next Generation Accountable Care Organization Model Data?

225 rows across all six reporting periods. Because this feed is time-partitioned, the full table total is the meaningful count — no deduplication needed.

How do I get Next Generation Accountable Care Organization Model Data data?

It's included in the CMS Data Feeds Dataset on the Snowflake Marketplace (free trial available) and via Databricks Delta Sharing. Once mounted, query DWV.NEXT_GENERATION_ACCOUNTABLE_CARE_ORGANIZATION_MODEL_DATA directly — no pipeline setup required.

Related feeds

Advance Investment Payment Spend PlanCounty-level Aggregate Expenditure and Risk Score Data on Assignable BeneficiariesPrepaid Shared Savings Spend PlanPerformance Year Financial and Quality ResultsRealizing Equity, Access, and Community Health ACOs

Get this feed

1. Start a free trial on Snowflake Marketplace or purchase via Databricks

2. Mount the share — the database and DWV schema appear in your account immediately

3. Run the sample query above — no ETL, no pipeline maintenance

Questions about this feed? Contact us at [e-mail].

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