Built on the authoritative federal record
The primary sources, named on every page.
These are the federal agencies whose public datasets Fonteum ingests and attributes — the issuing authorities, not customers or partners. Every figure on the site links back to one of them.
See the full source registry, with license and refresh cadence for each →
Reproducible by design
Every figure traces to its federal source.
14-tuple provenance
Every rendered fact ties to a source URL, dataset ID, snapshot date, row key, and SHA-256 — the full chain-of-custody record.
Reproducible SQL
Each study ships the exact query behind its figures, run against the cited federal snapshot. Re-run it yourself.
Daily reconciliation
Published counts are reconciled against the upstream federal datasets on a daily cadence, with drift logged.
Named medical review
Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.
Two doors
Use the free API and open data
Query providers, facilities, sanctions, and quality scores — each field carrying its federal source. Self-serve, no call to start.
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Managed pilots, enterprise terms, and audit-ready, signed attestation packages for compliance, risk, and research teams.
The substrate, by the numbers
| CCN | Hospital | Op Margin | vs National |
|---|---|---|---|
| 520066 | MERCY HEALTH SYSTEM CORPORATION | +430.1% | +444.0% |
| 523028 | UW HEALTH REHABILITATION HOSPITAL | +36.0% | +49.9% |
| 523027 | PROHEALTH REHABILITATION HOSPITAL OF | +35.4% | +49.2% |
| 520205 | MOSH | +33.7% | +47.6% |
| 524043 | GRANITE HILLS HOSPITAL | +33.3% | +47.1% |
| 520213 | FROEDTERT HLTH NEIGHORHOOD HOSP LLC | +32.7% | +46.5% |
| 520194 | ORTHOPAEDIC HOSPITAL OF WISCONSIN |
| CCN | Hospital | Op Margin | Distress |
|---|---|---|---|
| 521357 | MERCY WALWORTH HOSPITAL | — | — |
| 524008 | MENDOTA MENTAL HEALTH INSTITUTE | -513.2% | Distress |
| 524044 | MENTAL HEALTH EMERGENCY CENTER | -252.8% | Distress |
| 520033 | ASPIRUS WISCONSIN RAPIDS HOSPITAL | -165.8% | Distress |
| 524026 | WAUKESHA COUNTY MENTAL HEALTH CNTR | -159.2% | Distress |
| 520202 |
Fonteum does not independently rate or rank hospitals. This index reflects CMS-published self-reported financial data from HCRIS form 2552-10. Data is public domain per 17 U.S.C. § 105.
| +31.9% |
| +45.8% |
| 520196 | OAK LEAF SURGICAL HOSPITAL LLC | +31.1% | +45.0% |
| 520208 | ST. MARYS JANESVILLE HOSPITAL | +25.2% | +39.0% |
| 520038 | AURORA MEDICAL CENTER - HARTFORD | +24.6% | +38.4% |
| MARSHFIELD MEDICAL CENTER WESTON |
| -149.0% |
| Distress |
| 520087 | GUNDERSEN LUTHERAN MEDICAL CENTER I | -92.9% | Distress |
| 524002 | WINNEBAGO MENTAL HEALTH INSTITUTE | -77.6% | Distress |
| 521309 | MOUNDVIEW MEMORIAL HOSPITAL | -60.2% | Distress |
| 524014 | BROWN COUNTY COMMUNITY TREATMENT CTR | -53.5% | Distress |