Accountable Care Organizations

The Accountable Care Organizations (ACOs) data provides information on ACOs participating in the Medicare Shared Savings Program (Shared Savings Program)…

Part of the CMS Data Feeds Dataset › Medicare

Dataplex delivers this CMS feed as the analysis-ready table DWV.ACCOUNTABLE_CARE_ORGANIZATIONS on Snowflake and Databricks — 26 snapshot releases spanning 2014–2026, 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.ACCOUNTABLE_CARE_ORGANIZATIONS
Databricks	cms_dwv.accountable_care_organizations
Coverage	Jan 2014 – Dec 2026
Cadence	Annual
Update pattern	Full-refresh — each file replaces the prior snapshot
CMS published	2026-04-16
Loaded	2026-04-16
Columns	51 data + 6 lineage
Identifiers	ZIP codes · ACO ID
File versions	26
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 2026-04-16. Coverage runs through 2026-12-31. Next CMS release expected ~Apr 2027.

Full-refresh feed — each file version is a complete snapshot and newer files supersede older ones. Filter to the latest file (see the sample query) to avoid double-counting across versions.

Sample queries

Snowflake

-- Latest snapshot only (avoids double-counting across file versions)
SELECT *
FROM DWV.ACCOUNTABLE_CARE_ORGANIZATIONS
WHERE FILE_ID IN (
  SELECT ID FROM DWV.FEEDS_FILES WHERE IS_LATEST = 1
)
LIMIT 100;

Databricks

About this feed

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.

— Source: CMS feed metadata

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

Coverage timeline

2014–2026 🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩 (🟩 covered · ⬜ no data)

13 of 13 years with snapshot releases — no gaps.

Release history

Reporting period	CMS published	Loaded	Latest file
Snapshot as of 2026-04-16	2026-04-16	2026-04-16	✓
Snapshot as of 2026-02-04	2026-02-04	2026-02-04
Snapshot as of 2025-09-10	2025-09-10	2025-10-18
Snapshot as of 2025-01-15	2025-01-15	2025-01-15
Snapshot as of 2024-01-29	2024-01-29	2024-01-29
Snapshot as of 2023-03-06	2023-03-06	2024-01-29
Snapshot as of 2022-01-26	2022-01-26	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2024-01-29	2024-01-29	2024-01-29

Show 16 earlier file versions

Reporting period	CMS published	Loaded	Latest file
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2022-01-27	2022-01-27	2024-01-29
Snapshot as of 2023-03-06	2023-03-06	2023-08-29
Snapshot as of 2022-01-26	2022-01-26	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29
Snapshot as of 2022-01-27	2022-01-27	2023-08-29

Data dictionary

📋 51 data columns + 6 lineage columns

Column-level definitions are maintained by CMS in the official Accountable Care Organizations data dictionary.

Data columns

Column	Type
__ACO_ID	TEXT
ACO_NAME	TEXT
ACO_SERVICE_AREA	TEXT
AGREEMENT_PERIOD_NUM	NUMBER
INITIAL_START_DATE	DATE
CURRENT_START_DATE	DATE
RE_ENTERING_ACO	NUMBER
BASIC_TRACK	NUMBER
BASIC_TRACK_LEVEL	TEXT
ENHANCED_TRACK	NUMBER
HIGH_REVENUE_ACO	NUMBER
LOW_REVENUE_ACO	NUMBER
ADV_PAY	NUMBER
AIM	NUMBER
AIP	NUMBER
PSS	NUMBER
SNF_3_DAY_RULE_WAIVER	NUMBER
PROSPECTIVE_ASSIGNMENT	NUMBER
RETROSPECTIVE_ASSIGNMENT	NUMBER
ACO_ADDRESS	TEXT
ACO_PUBLIC_REPORTING_WEBSITE	TEXT
ACO_EXEC_NAME	TEXT
ACO_EXEC_EMAIL	TEXT
ACO_EXEC_PHONE	TEXT
ACO_PUBLIC_NAME	TEXT
ACO_PUBLIC_EMAIL	TEXT
ACO_PUBLIC_PHONE	TEXT
ACO_COMPLIANCE_CONTACT_NAME	TEXT
ACO_MEDICAL_DIRECTOR_NAME	TEXT
LAT	NUMBER
LONG	NUMBER
PC_FLEX_AGREEMENT_STATUS	NUMBER
ACO_ID	TEXT
ACO_NUM	TEXT
ACO_WEBSITE_ADDRESS	TEXT
ACO_AGREEMENT_TYPE	TEXT
ACO_EXECUTIVE_NAME	TEXT
ACO_EXECUTIVE_EMAIL	TEXT
ACO_EXECUTIVE_PHONE	TEXT
RE_ENTERING_ACOS	NUMBER
TRACK_1	NUMBER
ACO_PUBLIC_CONTACT_NAME	TEXT
PUBLIC_CONTACT_NAME	TEXT
TRACK_1_	NUMBER
ACO_PUBLIC_CONTACT_EMAIL	TEXT
PUBLIC_CONTACT_EMAIL	TEXT
TRACK_2	NUMBER
ACO_PUBLIC_CONTACT_PHONE	TEXT
PUBLIC_CONTACT_PHONE	TEXT
ACO_ZIP	TEXT
TRACK_3	NUMBER

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.ACO_SERVICE_AREA,
       ff.TEMPORAL_START, ff.TEMPORAL_END, ff.CMS_FEED_MODIFIED
FROM DWV.ACCOUNTABLE_CARE_ORGANIZATIONS 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

• Acos Aco Participants And Snf Affiliates Methodology

Frequently asked questions

How often is Accountable Care Organizations updated?

Annually. CMS last published this feed on 2026-04-16, and Dataplex loaded it to the warehouse the same day. New releases are added automatically when CMS publishes them.

What years does Accountable Care Organizations cover?

2014 through 2026.

How many records are in Accountable Care Organizations?

Count the current snapshot yourself once the share is mounted:

SELECT COUNT(*)
FROM DWV.ACCOUNTABLE_CARE_ORGANIZATIONS d
JOIN DWV.FEEDS_FILES ff ON d.FILE_ID = ff.ID
WHERE ff.IS_LATEST = 1;

How do I get Accountable Care Organizations 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.ACCOUNTABLE_CARE_ORGANIZATIONS directly — no pipeline setup required.

Related feeds

Prepaid Shared Savings Spend PlanNext Generation Accountable Care Organization Model DataCounty-level Aggregate Expenditure and Risk Score Data on Assignable BeneficiariesREACH ACOsACO REACH Providers

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].

---

Part of the CMS Data Feeds Dataset — 280+ feeds · 245B+ records · updated daily. Back to the full catalog →