Dataset family
CMS PECOS
Provider Enrollment, Chain and Ownership System — Medicare enrollment, reassignment, and ownership relationships for providers and organizations. 2.6M rows. Snapshot 2026-05-01.
Dataset spec
| dataset_id | cms-pecos |
|---|---|
| snapshot_date | 2026-05-01 |
| sha256 | Computed per snapshot — see /trust/integrity |
| doi | 10.5072/fonteum.dataset.cms-pecos (reserved) |
| update_cadence | Monthly |
| license | US Government Works (public domain, 17 U.S.C. §105) |
Studies citing CMS PECOS (2)
- Provider exclusions are rising — and clustering around distressed operators2026-05-05 · 7 min
- A March spike in Medicare enrollment deactivations thinned provider supply in shortage areas2026-04-28 · 6 min