> 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/health-insurance-exchanges-annual-effectuated-enrollment.md). # Health Insurance Exchanges Annual Effectuated Enrollment Part of the [CMS Data Feeds Dataset](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog.md) › Health Insurance Marketplace Dataplex delivers this CMS feed as the analysis-ready table `DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT` on Snowflake and Databricks — coverage from 2025 to 2025 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.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT` | | **Databricks** | `cms_dwv.health_insurance_exchanges_annual_effectuated_enrollment` | | **Coverage** | Jan 2025 – Dec 2025 | | **Cadence** | Annual | | **CMS published** | 2026-06-26 | | **Loaded** | 2026-06-26 | | **Columns** | 11 data + 6 lineage | | **File versions** | 1 | | **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 2026-06-26. Coverage runs through 2025-12-31. Next CMS release expected \~Jun 2027. {% endhint %} ## Sample queries {% tabs %} {% tab title="Snowflake" %} ```sql SELECT * FROM DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT LIMIT 100; ``` {% endtab %} {% tab title="Databricks" %} ```sql SELECT * FROM cms_dwv.health_insurance_exchanges_annual_effectuated_enrollment LIMIT 100; ``` {% endtab %} {% endtabs %} ## About this feed > The Health Insurance Exchanges Annual Effectuated Enrollment data provide select metrics on annual average effectuated enrollment across the Federally Facilitated Exchange (FFE) and State Based Exchanges on the Federal Platform (SBE-FPs), which both use the federal enrollment platform (HealthCare.gov), as well as State Based Exchanges (SBEs) that operate their own eligibility and enrollment platforms. > > These metrics include average effectuated enrollment, the average number of consumers with Advanced Premium Tax Credit (APTC) subsidies, the average number of consumers with Cost Sharing Reduction (CSR) subsidies, and the average APTC subsidy amount for consumers receiving APTC, at the state level. > > — *Source: CMS feed metadata* **Keywords:** Health Insurance Marketplace, Federally Facilitated Exchanges, State Based Exchanges, Beneficiary Enrollment **Theme:** Health Insurance Marketplace ## Coverage timeline 2025 🟩 1 of 1 years covered — no gaps. ## Release history | Reporting period | CMS published | Loaded | Latest file | | ----------------------- | ------------- | ---------- | ----------- | | 2025-01-01 – 2025-12-31 | 2026-06-26 | 2026-06-26 | ✓ | ## Data dictionary
📋 11 data columns + 6 lineage columns Column-level definitions are maintained by CMS in the official [Health Insurance Exchanges Annual Effectuated Enrollment data dictionary](https://data.cms.gov/resources/health-insurance-exchanges-annual-effectuated-enrollment-data-dictionary). **Data columns** | Column | Type | | ------------------ | ------ | | `STATE` | TEXT | | `YEAR` | NUMBER | | `PLATFORM` | TEXT | | `EFFECTUATED_ENR` | NUMBER | | `APTC_ENR` | NUMBER | | `PCT_APTC_ENR` | NUMBER | | `CSR_ENR` | NUMBER | | `PCT_CSR_ENR` | NUMBER | | `AVG_PRM` | NUMBER | | `AVG_APTC` | NUMBER | | `AVG_PRM_AFT_APTC` | 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: ```mermaid erDiagram FEEDS ||--o{ FEEDS_FILES : "ID = FEED_ID" FEEDS ||--o{ HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT : "ID = FILE_FEED_ID" FEEDS_FILES ||--o{ HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT : "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 } HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT { text ROW_ID PK text FILE_ID FK text FILE_FEED_ID FK text STATE number YEAR text PLATFORM number EFFECTUATED_ENR number remaining_7_data_columns } ``` Trace any row back to its source file and reporting period: ```sql SELECT d.STATE, d.YEAR, d.PLATFORM, ff.TEMPORAL_START, ff.TEMPORAL_END, ff.CMS_FEED_MODIFIED FROM DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT 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/health-insurance-exchanges-annual-effectuated-enrollment-data-dictionary) * [Health Insurance Exchanges Annual Effectuated Enrollment Methodology](https://data.cms.gov/resources/health-insurance-exchanges-annual-effectuated-enrollment-methodology) ## Frequently asked questions ### How often is Health Insurance Exchanges Annual Effectuated Enrollment updated? Annually. CMS last published this feed on 2026-06-26, and Dataplex loaded it to the warehouse the same day. New releases are added automatically when CMS publishes them. ### What years does Health Insurance Exchanges Annual Effectuated Enrollment cover? 2025 through 2025. ### How many records are in Health Insurance Exchanges Annual Effectuated Enrollment? Count the current snapshot yourself once the share is mounted: ```sql SELECT COUNT(*) FROM DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT d JOIN DWV.FEEDS_FILES ff ON d.FILE_ID = ff.ID WHERE ff.IS_LATEST = 1; ``` ### How do I get Health Insurance Exchanges Annual Effectuated Enrollment 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.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT` directly — no pipeline setup required. ## Related feeds {% content-ref url="/pages/vfprZh1RHS8BLjy6Cdsb" %} [Health Insurance Exchanges Monthly Effectuated Enrollment](/data-catalog/cms-data-feeds-dataset/cms-data-feeds-catalog/health-insurance-exchanges-monthly-effectuated-enrollment.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 . *** 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#health-insurance-exchanges-annual-effectuated-enrollment) --- # 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. 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