Provider change events
A dated log of what changed in the federal provider rosters: new providers, deactivations, address changes, ownership changes and equipment-spend jumps.
One row per healthcare-provider change event, unified across 7 federal archive-and-diff sources into a single append-only table with an event_type discriminator. Where the other Healthparse products describe *who a provider is*, this one tells you *what just changed* — a new physician enumerated in your territory, a provider newly billing Medicare, an address change, a deactivation, a hospital ownership change, a new lab certificate, a mammography-facility certification change, or a hospital equipment-purchase jump. Every event is observational — a dated record that a specific fact changed between two published federal file versions — never an inference about why.
Events are derived by diffing successive releases of each source file (every release is retained, so diffs are exact and repeatable), and each event carries its source file family, the source_vintage (which file release produced it), and a dedupe_key that is stable across re-ingests.
All eleven types are emitting. The five NPPES/CHOW/HCRIS-derived types carry dates the source itself publishes (enumeration and deactivation dates back to 2005, ownership effective dates back to 2016, fiscal years back to 2019); the other six began at the July 2026 baseline, when their first two file versions were compared, and build forward from there.
Openings, closures and hand-offs by operator. Roll-up and PE activity. REIT tenant exposure. Delivered as events, not a directory.
- Event date is the roster date, not the transaction date.
- Every event is observational: a fact changed between two published file versions. The reason is not in the data.
- Rows
- 297,204 (2026-08-29 export). Weekly volume since launch has run between 35,000 and 85,000 events in normal weeks, depending on which source files were released; the per-type table below is from the same 2026-08-29 export.
- Product cadence
- Twice weekly (Tuesday and Friday), weekly and quarterly by source
- Lag
- Days for roster sources; quarters for cost-report sources
- Lookback shipped
- Registry events to 2005, ownership changes to 2016, diff-derived types from July 2026
- Backfill available
- None for diff-derived types: an event needs two archived file versions, and the archive starts at the baseline
- Vintage
- 2026-08-28 (most recent ingest in the 2026-08-29 export).
- Tables
- 1
- Licence
- $500 per month per firm, or inside the suite
Where every row comes from.
| Source | Source cadence | History |
|---|---|---|
| CMS NPPES weekly incremental V2 | Weekly | Enumeration and deactivation dates back to 2005 |
| CMS Order and Referring file | Twice weekly | Diff-derived from the 2026-07 baseline |
| CMS pending initial enrollment (PILT) | Weekly | Diff-derived from the 2026-07 baseline |
| CMS Change of Ownership and All-Owners files | Quarterly | Ownership changes back to 2016 |
| CMS Provider of Services CLIA file | Quarterly | Diff-derived from the 2026-07 baseline |
| CMS HCRIS Worksheet A-7 | Quarterly | FY2019 onward |
| FDA MQSA certified mammography facilities | Weekly | Diff-derived from the 2026-07 baseline |
Dictionary source line: CMS (data.cms.gov, download.cms.gov, downloads.cms.gov) and FDA (fda.gov) — 7 file families, per-type table below.
1 table, three meta columns each.
Every table carries _dataset, _vintage and _exported_at in addition to the columns in the dictionary.
| Table | Snowflake path | Columns | Rows |
|---|---|---|---|
| provider_change_events | HEALTHPARSE_DATA.PROVIDER_CHANGE_EVENTS.PROVIDER_CHANGE_EVENTS | 15 | 297,204 |
Provider Change Events
Three real rows pulled from the production tables on 2026-09-10. The query is recorded next to the rows in the site source.
| Date | Event | Entity | Detail |
|---|---|---|---|
| 2026-04-12 | ownership_change | SUTTER VALLEY HOSPITALS | from TWIN CITIES SURGICAL HOSPITAL LLC |
| 2026-02-01 | ownership_change | ATRIUM HEALTH HOSPITALS INC | from THE CHARLOTTE-MECKLENBURG HOSPITAL AUTHORITY |
| 2026-08-23 | address_change | AMANTINE, DYROL (CA) | LAKE ELSINORE → MORENO VALLEY |
Evaluate Provider change events
Free California sample on the marketplaces. 30-day full-table evaluation on request.