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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

© 2026 Fonteum, Inc. All rights reserved.

The U.S. healthcare graph AI can cite — every fact carries its source.

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PRESS FACTSHEET · FONTEUM.COM/PRESS

Fonteum

US healthcare provenance registry

Fonteum is a US healthcare provenance registry that publishes signed, chain-of-custody-attested research and data pages on Medicare, Medicaid, and federal regulator datasets, drawing from 23 federal source families across CMS, OIG, HRSA, AHRQ, and HHS.

KEY FACTS

Legal nameFonteum, Inc. (Delaware C-corp)
Founded2026
TypeUS healthcare provenance registry
Federal source families23
Active NPIs (NPPES)6.8M+
Published research studies37
US states + territories covered47
Snapshot dateMay 8, 2026
Press contactpress@fonteum.com

SOURCE FAMILIES (23 federal source families)

  • CMS NPPES (6.8M+ provider records)
  • CMS Care Compare (nursing homes, home health, hospice, dialysis, ASC)
  • CMS PECOS PPEF (Medicare enrollment)
  • OIG LEIE (68K+ exclusion records)
  • HRSA HPSA (health professional shortage areas)
  • CMS Open Payments (physician payments)
  • CMS QPP MIPS (clinician quality scores)
  • BLS OEWS + QCEW (workforce economics)
  • BEA Regional (economic benchmarks)
  • CMS POS iQIES (facility identity backbone)
  • CMS HCRIS (hospital cost reports)
  • HRSA UDS (community health centers)

PROVENANCE MODEL

Every published field carries a 14-field provenance contract: source, dataset ID, snapshot date, methodology version, license, confidence tier, last-checked date, and a chain-of-custody signature (Ed25519, in-toto format). Snapshots are DOI-pinned and publicly reproducible.

Full methodology: fonteum.com/methodology · Sources: fonteum.com/sources

HOW TO CITE

Fonteum Research, "{Study Title}," {Month YYYY}.
https://fonteum.com/research/{study-slug}
Dataset: https://fonteum.com/research/data/{study-slug}.csv

AP short form: (Fonteum Research, {Month YYYY})

NON-PRACTICING REVIEWER

Dr. Jennifer Montecillo, MD — Gullas College of Medicine, 2019 — co-founder of Fonteum, also a tattoo artist.

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

fonteum.com/presspress@fonteum.comSnapshot: May 8, 2026