> For the complete documentation index, see [llms.txt](https://docs.dataplex-consulting.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dataplex-consulting.com/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/accountable-care-organizations.md).

# Accountable Care Organizations

Part of the [CMS Data Feeds Dataset](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog.md) › 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](https://app.snowflake.com/marketplace/listing/GZT1Z125KDH/dataplex-consulting-data-products-cms-data-feeds-dataset).

{% hint style="success" %}
**Current** — CMS last published this feed on 2026-04-16. Coverage runs through 2026-12-31. Next CMS release expected \~Apr 2027.
{% endhint %}

{% hint style="info" %}
**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.
{% endhint %}

## Sample queries

{% tabs %}
{% tab title="Snowflake" %}

```sql
-- 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;
```

{% endtab %}

{% tab title="Databricks" %}

```sql
-- Latest snapshot only (avoids double-counting across file versions)
SELECT *
FROM cms_dwv.accountable_care_organizations
WHERE file_id IN (
  SELECT id FROM cms_dwv.feeds_files WHERE is_latest = 1
)
LIMIT 100;
```

{% endtab %}
{% endtabs %}

## 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 |             |

<details>

<summary>Show 16 earlier file versions</summary>

| 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 |             |

</details>

## Data dictionary

<details>

<summary>📋 <strong>51 data columns + 6 lineage columns</strong></summary>

Column-level definitions are maintained by CMS in the official [Accountable Care Organizations data dictionary](https://data.cms.gov/resources/acos-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         |

</details>

## 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:

```mermaid
erDiagram
    FEEDS ||--o{ FEEDS_FILES : "ID = FEED_ID"
    FEEDS ||--o{ ACCOUNTABLE_CARE_ORGANIZATIONS : "ID = FILE_FEED_ID"
    FEEDS_FILES ||--o{ ACCOUNTABLE_CARE_ORGANIZATIONS : "ID = FILE_ID"

    FEEDS {
        text ID PK
        text TITLE
        text VIEW_NAME
        text ACCURAL_PERIODICITY
    }
    FEEDS_FILES {
        text ID PK
        text FEED_ID FK
        date TEMPORAL_START
        date TEMPORAL_END
        date CMS_FEED_MODIFIED
        number IS_LATEST
    }
    ACCOUNTABLE_CARE_ORGANIZATIONS {
        text ROW_ID PK
        text FILE_ID FK
        text FILE_FEED_ID FK
        text __ACO_ID
        text ACO_NAME
        text ACO_SERVICE_AREA
        number AGREEMENT_PERIOD_NUM
        number remaining_47_data_columns
    }
```

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

```sql
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](https://data.cms.gov/resources/acos-data-dictionary)
* [Acos Aco Participants And Snf Affiliates Methodology](https://data.cms.gov/resources/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:

```sql
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](https://app.snowflake.com/marketplace/listing/GZT1Z125KDH/dataplex-consulting-data-products-cms-data-feeds-dataset) (free trial available) and via [Databricks Delta Sharing](https://checkout.dataplex-consulting.com/b/3cIdR2e1J59Sh2w7pWbQY00). Once mounted, query `DWV.ACCOUNTABLE_CARE_ORGANIZATIONS` directly — no pipeline setup required.

## Related feeds

{% content-ref url="/pages/lmvArpLrAmt0tFSqeAXL" %}
[Prepaid Shared Savings Spend Plan](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/prepaid-shared-savings-spend-plan.md)
{% endcontent-ref %}

{% content-ref url="/pages/GDDxJdiv70hyWJduhufY" %}
[Next Generation Accountable Care Organization Model Data](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/next-generation-accountable-care-organization-model-data.md)
{% endcontent-ref %}

{% content-ref url="/pages/aTLUkeVSWj51DyXDK1Tn" %}
[County-level Aggregate Expenditure and Risk Score Data on Assignable Beneficiaries](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/county-level-aggregate-expenditure-and-risk-score-data-on-assignable-beneficiaries.md)
{% endcontent-ref %}

{% content-ref url="/pages/P7at2B9eNJhGExBC0kQ8" %}
[REACH ACOs](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/reach-acos.md)
{% endcontent-ref %}

{% content-ref url="/pages/5Q9JzvxOcNxRU1hN1sCb" %}
[ACO REACH Providers](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/aco-reach-providers.md)
{% endcontent-ref %}

## Get this feed

1. [Start a free trial on Snowflake Marketplace](https://app.snowflake.com/marketplace/listing/GZT1Z125KDH/dataplex-consulting-data-products-cms-data-feeds-dataset) or purchase via [Databricks](https://checkout.dataplex-consulting.com/b/3cIdR2e1J59Sh2w7pWbQY00)
2. Mount the share — the database and `DWV` schema appear in your account immediately
3. Run the [sample query](#sample-queries) above — no ETL, no pipeline maintenance

Questions about this feed? Contact us at <notifications@dataplex-consulting.com>.

***

Part of the [CMS Data Feeds Dataset](/data-catalog/cms-data-feeds-dataset.md) — 280+ feeds · 245B+ records · updated daily. [Back to the full catalog →](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog.md#accountable-care-organizations)


---

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