Provider identity
The NPI (National Provider Identifier) is the unique key. We import the monthly NPPES Data Dissemination file and refresh weekly using the incremental files. Deactivated NPIs are excluded.
Specialties
NPPES allows up to 15 taxonomy codes per provider; we display the one with the "Primary Taxonomy Switch" set to Y, falling back to the first listed if none is marked primary. Codes are mapped to names from the NUCC Health Care Provider Taxonomy.
Open Payments
We aggregate the General Payments file from CMS Open Payments by (NPI × payer company × payment type × year). We do not include research or ownership payments unless explicitly noted.
Medicare procedures
From the Medicare Physician & Other Practitioners — by Provider and Service file. Counts are services rendered, beneficiaries are unique patient counts. Note: this only covers Medicare fee-for-service patients, not the provider's full practice.
Sanctions
From OIG LEIE. Cross-referenced on NPI when available. A "No known sanctions" badge means no LEIE record matched on NPI as of the last refresh — it does not guarantee absence elsewhere.
Hospital quality
From CMS Hospital Compare and HCAHPS, refreshed quarterly. The Overall Rating is CMS's published 1–5 stars and combines mortality, safety, readmission, patient experience, timeliness, and effectiveness scores.
Refresh cadence
- NPPES — weekly
- OIG LEIE — monthly
- Hospital Compare / POS — quarterly
- Open Payments — annually (June release)
- Medicare procedures — annually