Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes

This file contains the footnotes used in the Outpatient and Ambulatory Surgery (OAS CAHPS) survey data.

Part of the CMS Data Feeds Dataset › Medicare

Dataplex delivers this CMS feed as the analysis-ready table DWV.OUTPATIENT_AND_AMBULATORY_SURGERY_CONSUMER_ASSESSMENT_OF_HEALTHCARE_PROVIDERS_AND_SYSTEMS_OAS_CAHPS_SURVEY__FOOTNOTES on Snowflake and Databricks — three snapshot releases spanning 2024–2025, 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.OUTPATIENT_AND_AMBULATORY_SURGERY_CONSUMER_ASSESSMENT_OF_HEALTHCARE_PROVIDERS_AND_SYSTEMS_OAS_CAHPS_SURVEY__FOOTNOTES
Databricks	cms_dwv.outpatient_and_ambulatory_surgery_consumer_assessment_of_healthcare_providers_and_systems_oas_cahps_survey__footnotes
Update pattern	Full-refresh — each file replaces the prior snapshot
CMS published	2025-07-16
Loaded	2025-08-06
Columns	2 data + 6 lineage
File versions	3
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.

Last CMS publication 2025-07-16 — awaiting the next release. New files load automatically when CMS publishes.

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.OUTPATIENT_AND_AMBULATORY_SURGERY_CONSUMER_ASSESSMENT_OF_HEALTHCARE_PROVIDERS_AND_SYSTEMS_OAS_CAHPS_SURVEY__FOOTNOTES
WHERE FILE_ID IN (
  SELECT ID FROM DWV.FEEDS_FILES WHERE IS_LATEST = 1
)
LIMIT 100;

Databricks

About this feed

This file contains the footnotes used in the Outpatient and Ambulatory Surgery (OAS CAHPS) survey data. The OAS CAHPS survey collects information about patients' experiences of care in hospital outpatient departments (HOPDs) and ambulatory surgical centers (ASCs).

— Source: CMS feed metadata

Keywords: Medicare, Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes Theme: Medicare

Coverage timeline

2024 🟩 · 2025 🟩

2 of 2 years with snapshot releases — no gaps.

Release history

Reporting period	CMS published	Loaded	Latest file
Snapshot as of 2025-07-16	2025-07-16	2025-08-06	✓
Snapshot as of 2025-01-08	2025-01-08	2025-02-27
Snapshot as of 2024-10-10	2024-10-10	2024-12-14

Data dictionary

📋 2 data columns + 6 lineage columns

Column-level definitions are maintained by CMS in the official Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes data dictionary.

Data columns

Column	Type
FOOTNOTE_NUMBER	NUMBER
OAS_CAHPS_FOOTNOTES	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
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.FOOTNOTE_NUMBER, d.OAS_CAHPS_FOOTNOTES,
       ff.TEMPORAL_START, ff.TEMPORAL_END, ff.CMS_FEED_MODIFIED
FROM DWV.OUTPATIENT_AND_AMBULATORY_SURGERY_CONSUMER_ASSESSMENT_OF_HEALTHCARE_PROVIDERS_AND_SYSTEMS_OAS_CAHPS_SURVEY__FOOTNOTES 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

Frequently asked questions

How often is Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes updated?

CMS last published this feed on 2025-07-16. New releases are added automatically when CMS publishes them.

What years does Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes cover?

2024 through 2025.

How many records are in Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes?

Count the current snapshot yourself once the share is mounted:

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

How do I get Outpatient and Ambulatory Surgery Consumer Assessment of Healthcare Providers and Systems (OAS CAHPS) survey - Footnotes 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.OUTPATIENT_AND_AMBULATORY_SURGERY_CONSUMER_ASSESSMENT_OF_HEALTHCARE_PROVIDERS_AND_SYSTEMS_OAS_CAHPS_SURVEY__FOOTNOTES directly — no pipeline setup required.

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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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