Health Insurance Exchanges Annual Effectuated Enrollment

The Health Insurance Exchanges Annual Effectuated Enrollment data provide select metrics on annual average effectuated enrollment across the Federally…

Part of the CMS Data Feeds Dataset › 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.

Current — CMS last published this feed on 2026-06-26. Coverage runs through 2025-12-31. Next CMS release expected ~Jun 2027.

Sample queries

Snowflake

SELECT *
FROM DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT
LIMIT 100;

Databricks

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.

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:

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

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

• 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:

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 (free trial available) and via Databricks Delta Sharing. Once mounted, query DWV.HEALTH_INSURANCE_EXCHANGES_ANNUAL_EFFECTUATED_ENROLLMENT directly — no pipeline setup required.

Related feeds

Health Insurance Exchanges Monthly Effectuated Enrollment

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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