> 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-research-dataset/cms-data-research-catalog/part-cd-plan-crosswalk.md). # Part C\&D Plan Crosswalk Part of the [CMS Data Research Dataset](/data-catalog/cms-data-research-dataset/cms-data-research-catalog.md) › Plan Crosswalk Dataplex delivers this CMS research table as the analysis-ready table `DWV.PLAN_CROSSWALKS` on Snowflake — coverage from 2006 to 2026 in a single aligned 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.PLAN_CROSSWALKS` | | **Coverage** | Jan 2006 – Jan 2026 | | **Rows** | 121,311 (total across all reporting periods) | | **Cadence** | Annual | | **Update pattern** | Time-partitioned — each file adds one reporting period | | **Latest report period** | 2026-01-01 | | **Loaded** | 2025-11-20 | | **Columns** | 14 data + 5 lineage | | **Identifiers** | Contract ID (H-number) · Plan ID | | **File versions** | 17 | | **License** | CMS public data — U.S. Government work | | **Platforms** | Snowflake Marketplace | Included in the CMS Data Research Dataset — [start a free trial on Snowflake Marketplace](https://app.snowflake.com/marketplace/listing/GZT1Z125KDP/dataplex-consulting-data-products-cms-data-research-dataset). {% hint style="success" %} **Current** — data runs through the Jan 2026 report period. Next CMS release expected \~Jan 2027. {% endhint %} {% hint style="info" %} **Partitioned by report period** — each file version covers one report period and history is additive. The sample query below returns the latest report period; drop the `WHERE` clause to query the full history. {% endhint %} ## Sample queries ```sql -- Latest report period only (drop the WHERE clause for the full history) SELECT * FROM DWV.PLAN_CROSSWALKS WHERE FILE_ID IN ( SELECT ID FROM DWV.FEEDS_FILES WHERE IS_LATEST = 1 ) LIMIT 100; ``` ## About this feed > Provides the list of annual plan crosswalks for all organization types. > > — *Source: CMS feed metadata* **Theme:** Plan Crosswalk ## Coverage timeline 2006–2026 🟩🟩🟩🟩🟩⬜⬜⬜🟩🟩⬜🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩 (🟩 covered · ⬜ no data) 17 of 21 years covered — gaps: 2011, 2012, 2013, 2016. ## Release history | Report period | Files | Loaded | Latest | CMS source | | ------------- | ----- | ---------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | 2026-01-01 | 1 | 2025-11-20 | ✓ | [source ↗](https://www.cms.gov/files/zip/plan-crosswalk-2026.zip) | | 2025-01-01 | 1 | 2025-01-12 | | [source ↗](https://www.cms.gov/files/zip/plan-crosswalk-2025.zip) | | 2024-01-01 | 1 | 2025-11-20 | | [source ↗](https://www.cms.gov/files/zip/plan-crosswalk-2024.zip) | | 2023-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/files/zip/plan-crosswalk-2023.zip) | | 2022-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/files/zip/plan-crosswalk-2022.zip) | | 2021-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/files/zip/plancrosswalk-2021.zip) | | 2020-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan-crosswalk/plan-crosswalk-2020.zip) | | 2019-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan-crosswalk/plan-crosswalk-2019.zip) | | 2018-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan-crosswalk/plan-crosswalk-2018.zip) | | 2017-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan-crosswalk/plan-crosswalk-2017.zip) |
Show 7 earlier report periods | Report period | Files | Loaded | Latest | CMS source | | ------------- | ----- | ---------- | ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 2015-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/plan-crosswalks-items/plan-crosswalk-2015.zip) | | 2014-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/plan-crosswalks-items/plan-crosswalk-2014.zip) | | 2010-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan_crosswalk_2010.zip) | | 2009-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan_crosswalk_2009.zip) | | 2008-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan_crosswalk_2008.zip) | | 2007-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/plan_crosswalk_2007.zip) | | 2006-01-01 | 1 | 2023-12-03 | | [source ↗](https://www.cms.gov/research-statistics-data-and-systems/statistics-trends-and-reports/mcradvpartdenroldata/downloads/2010/plan_crosswalk_2006.zip) |
## Data dictionary
📋 14 data columns + 5 lineage columns **Data columns** | Column | Type | | ---------------------------- | ---- | | `PREVIOUS_CONTRACT_ID` | TEXT | | `PREVIOUS_PLAN_ID` | TEXT | | `PREVIOUS_PLAN_NAME` | TEXT | | `PREVIOUS_SNP_TYPE` | TEXT | | `PREVIOUS_SNP_INSTITUTIONAL` | TEXT | | `CURRENT_CONTRACT_ID` | TEXT | | `CURRENT_PLAN_ID` | TEXT | | `CURRENT_PLAN_NAME` | TEXT | | `CURRENT_SNP_TYPE` | TEXT | | `CURRENT_SNP_INSTITUTIONAL` | TEXT | | `STATUS` | TEXT | | `DESCRIPTION` | TEXT | | `PREVIOUS_SNP_POPULATION` | TEXT | | `CURRENT_SNP_POPULATION` | TEXT | **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 |
## 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{ PLAN_CROSSWALKS : "ID = FILE_FEED_ID" FEEDS_FILES ||--o{ PLAN_CROSSWALKS : "ID = FILE_ID" FEEDS { text ID PK text TITLE text VIEW_NAME text FEED_SUBTYPE } FEEDS_FILES { text ID PK text FEED_ID FK date FILE_REPORT_PERIOD text FILE_DOWNLOAD_URL number IS_LATEST } PLAN_CROSSWALKS { text ROW_ID PK text FILE_ID FK text FILE_FEED_ID FK text PREVIOUS_CONTRACT_ID text PREVIOUS_PLAN_ID text PREVIOUS_PLAN_NAME text PREVIOUS_SNP_TYPE number remaining_10_data_columns } ``` Trace any row back to its source file and reporting period: ```sql SELECT d.PREVIOUS_CONTRACT_ID, d.PREVIOUS_PLAN_ID, d.PREVIOUS_PLAN_NAME, ff.TEMPORAL_START, ff.TEMPORAL_END, ff.CMS_FEED_MODIFIED FROM DWV.PLAN_CROSSWALKS d JOIN DWV.FEEDS_FILES ff ON d.FILE_ID = ff.ID; ``` ## Source & provenance Published by the **Centers for Medicare & Medicaid Services**. * [Official CMS documentation (MA/Part D contract and enrollment data)](https://www.cms.gov/data-research/statistics-trends-and-reports/medicare-advantagepart-d-contract-and-enrollment-data/plan-crosswalks) * [Latest source file from CMS (zip)](https://www.cms.gov/files/zip/plan-crosswalk-2026.zip) ## Frequently asked questions ### How often is Part C\&D Plan Crosswalk updated? Annually. CMS last published this feed on 2026-01-01, and Dataplex loaded it to the warehouse on 2025-11-20. New releases are added automatically when CMS publishes them. ### What years does Part C\&D Plan Crosswalk cover? 2006 through 2026. Coverage gaps: 2011, 2012, 2013, 2016. ### How many records are in Part C\&D Plan Crosswalk? 121,311 rows across all 17 report periods. Because this feed is partitioned by report period, the full table total is the meaningful count — no deduplication needed. ### How do I get Part C\&D Plan Crosswalk data? It's included in the CMS Data Research Dataset on the [Snowflake Marketplace](https://app.snowflake.com/marketplace/listing/GZT1Z125KDP/dataplex-consulting-data-products-cms-data-research-dataset) (free trial available). Once mounted, query `DWV.PLAN_CROSSWALKS` directly — no pipeline setup required. ## Get this feed 1. [Start a free trial on Snowflake Marketplace](https://app.snowflake.com/marketplace/listing/GZT1Z125KDP/dataplex-consulting-data-products-cms-data-research-dataset) 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 . *** Part of the [CMS Data Research Dataset](/data-catalog/cms-data-research-dataset.md) — 22 research tables · 20 years of Medicare Advantage & Part D history · updated daily. [Back to the full catalog →](/data-catalog/cms-data-research-dataset/cms-data-research-catalog.md#part-cd-plan-crosswalk) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.dataplex-consulting.com/data-catalog/cms-data-research-dataset/cms-data-research-catalog/part-cd-plan-crosswalk.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.