Datasets · researcher API · citation chain
- , no account
Research dataset corpus
Free CSV + JSON
Published study pages expose the downloads and documentation available for that study — for example the Nursing Home Deficiency & Harm Rate study ( citation records across facilities). Artifact and citation coverage should be read from the individual study page.
- Citation, not a license fee
Researcher API
Free for .edu / .gov
Programmatic access to research snapshots and the provider graph, free for academic and government institutions at /signup/researcher — the same access model as Wharton WRDS, CMS ResDAC, and AHRQ HCUP, where the price is a standard citation rather than a license fee. Includes semantic search over active NPI embeddings.
- Source → snapshot → method
Citation chain
Reproducible by design
Research results publish their named source, methodology, and available observation date so a reader can inspect the cited public file. Retained row history and hash coverage vary by source; the public registry documents declared cadence and redistribution posture.
Free, citable, reproducible — to the snapshot
Free access, the WRDS / ResDAC / HCUP way
Academic and government teams get free programmatic access via the researcher tier at /signup/researcher — the same model as Wharton WRDS, CMS ResDAC, and AHRQ HCUP, where the price is a standard citation rather than a license fee. It exposes research snapshots, the provider graph, and semantic search across active NPI embeddings. Static study files at /research need no account at all.
Reproducible to a pinned snapshot
A study is reproducible only to the extent that its page names the source, observation date, method, limitations, and downloadable artifact. Those elements and retained history vary by source. The is CC-BY-4.0; underlying reuse terms remain source-specific.
Methodology and limitations, in the open
Study pages identify the documentation and artifacts available for that dataset. Findings span the federal corpus — for instance nursing-home deficiency citations with 5.59% at G+ actual harm. Fonteum does not mint external academic identifiers it has not registered.
From federal portal to citable dataset
Ingest
The July 12 production audit separated publisher cadence from loaded dates: NPPES had a June 10, 2026 newest system date, checked Care Compare modules had a May 7 source date, and the table had a May 8 source date. Study pages should state their own source and observation date.
Provenance
A study page can name its source, observation date, methodology, limitations, and downloadable artifact. Those elements and retained history vary by study and source; do not infer a universal replayable snapshot.
Deliver
Start at /research and inspect the downloads and documentation listed on each study page. The researcher API supports programmatic access to available research snapshots and provider records; the /data catalog lists the datasets it currently exposes.
Common questions
- Who qualifies for the free researcher API?
- The researcher tier at /signup/researcher is free for academic and government institutions — .edu and .gov affiliations — modeled directly on the access pattern of Wharton Research Data Services (WRDS), the CMS Research Data Assistance Center (ResDAC), and the AHRQ Healthcare Cost and Utilization Project (HCUP). In each of those, the price of access is a standard citation in resulting work rather than a license fee, and Fonteum follows the same model. The researcher API provides programmatic access to research snapshots and the provider graph, including semantic search over active NPI embeddings for natural-language queries by specialty, geography, or clinical context. For researchers who only need the published study files, the static CSV and JSON downloads at /research require no account or API key at all, so an exploratory analysis can begin immediately and the API credential is needed only for programmatic or graph-scale work.
- What makes Fonteum's datasets reproducible?
- A published study can be reproduced only to the extent that its page names the source, observation date, methodology, limitations, and downloadable artifact. Coverage varies by study and source. Retained row history is not universal: the July 12 audit found banked rows only in named sanctions, procurement, and provenance tables, with none in the EU sanctions table.
- What research studies are already published?
- The /research corpus covers studies built on public-record source families. Representative examples include the Nursing Home Deficiency & Harm Rate study ( citations across facilities), MIPS Score Distribution (477,137 PY2023 clinician scores), Open Payments recipient concentration, and Medicare Part D prescriber concentration. Inspect each study page for its available methodology, limitations, downloads, citation, and observation date.
- How should I cite a Fonteum dataset?
- Inspect the individual study page for its available citation footer, Dataset JSON-LD, methodology version, observation date, and primary source. Cite the study and source actually named there. Fonteum does not mint external academic identifiers it has not registered, and retained snapshot or row-history coverage must not be inferred where the page does not supply it.
- What scale and breadth of data can a researcher expect?
- The provider graph is anchored by CMS NPPES at active records; Fonteum's newest observed production system date was June 10, 2026. Representative study volumes include nursing-home deficiency citations and PBJ daily records per quarter. The OIG LEIE serving table held rows from the May 8 release when checked July 12. The active production registry does not establish loaded, complete, or fresh coverage. Join keys and source metadata vary by dataset.
- Can I use Fonteum data in a published paper or grant deliverable?
- The Fonteum-authored layer is released under CC-BY-4.0, while reuse terms for underlying records remain source-specific. Cite the named study and primary source shown on its page. Methodology, limitations, download, and citation coverage varies by dataset, so inspect the individual study before relying on a fixed-snapshot reproduction claim.
- /research → All published studies — free CSV + JSON downloads.
- /signup/researcher → Free researcher API for .edu/.gov institutions.
- /data → DCAT-US 3.0 catalog — all Fonteum datasets in one place.
- /use-cases/healthcare-analytics → Pipeline-ready bulk export for analytics teams.