Transparency
Data Sources
Every external dataset MediBill Saver uses. All public domain. All attributed. All dated.
Last reviewed May 2026 · MediBill Saver Editorial Team
Why this page exists
Healthcare pricing data goes stale. Hospitals update their price-transparency files. CMS publishes new fee schedules annually. Drug acquisition costs change weekly. We refresh every dataset we publish on a documented cadence and stamp the page with “updated [X] days ago” so anyone comparing our numbers to their bill can see whether our copy is current.
If you find an inaccuracy on any data-driven page, the fastest fix is the “Report inaccuracy” link on that page. We review reports as quickly as we can; the page stays out of search results while we investigate.
How we describe procedure codes
Medical procedure codes (CPT, HCPCS) appearing in this product are read either from the medical bills you upload, or from each hospital’s federally-mandated Hospital Price Transparency file. All plain-English procedure descriptions and bundling-rule rationales shown in our service are MediBill Saver’s own original work-product, written from procedure-code conventions and standard clinical terminology. We do not republish proprietary medical-coding manuals.
Datasets we ingest
CMS Care Compare (Hospital Quality Metrics)
Updated 35 days agoVerified unchanged today.
- License:
- Public domain (CMS)
- Refresh cadence:
- every 30 days
- Records:
- 5,426
- Official source:
- https://www.medicare.gov/care-compare/
Source: CMS Care Compare hospital quality metrics (HCAHPS, infection, readmission rates).
CMS MS-DRG (Inpatient Bundled Payment Classifications)
Updated 31 days ago- License:
- Public domain (US federal work, 17 USC 105)
- Refresh cadence:
- every 365 days
- Records:
- 770
CMS National Correct Coding Initiative (NCCI) Edits
Maintained in sourceMaintained as an in-app curated set of common bundling patterns written from CMS regulatory text in our own words. CMS’s bulk NCCI files are distributed behind the AMA CPT license-acceptance wall; we do not bulk-ingest, and instead expand the curated set manually each quarter.
- License:
- Public domain (CMS)
- Lookup mode:
- in-app curated set
- Records:
- ~120 curated bundling pairs
Source: CMS National Correct Coding Initiative procedure-to-procedure edits.
CMS Physician Fee Schedule
Updated 35 days agoVerified unchanged today.
- License:
- Public domain (US federal work)
- Refresh cadence:
- every 90 days
- Records:
- 7,835
- Official source:
- https://www.cms.gov/medicare/physician-fee-schedule/search
Source: CMS Physician Fee Schedule (PFS), national-average non-facility payment amounts.
Hospital Price Transparency files (45 CFR §180.50)
Updated 31 days agoVerified unchanged today.
- License:
- Federally mandated public posting (45 CFR §180.50); each hospital is the originating publisher
- Refresh cadence:
- every 90 days
- Records:
- 185,649
Source: Hospital Price Transparency machine-readable file, published by the originating hospital under 45 CFR §180.50.
IRS Publication 78 — Tax-Exempt Organization Search
Updated 30 days agoVerified unchanged today.
- License:
- Public domain (US Internal Revenue Service)
- Refresh cadence:
- every 30 days
- Records:
- 42,001
- Official source:
- https://apps.irs.gov/app/eos/
Source: IRS Publication 78, list of organizations eligible to receive tax-deductible charitable contributions.
NADAC — National Average Drug Acquisition Cost
Updated Today- License:
- Public domain (CMS Medicaid)
- Refresh cadence:
- every 7 days
- Records:
- 33,814
Source: NADAC — National Average Drug Acquisition Cost, published weekly by CMS from a survey of approximately 60,000 retail pharmacies.
NPPES NPI Registry
Queried live per auditQueried live at audit time — no cached snapshot to age.
- License:
- Public domain (CMS)
- Lookup mode:
- live API call per audit
- Official source:
- https://npiregistry.cms.hhs.gov/
Source: NPPES National Provider Identifier (NPI) Registry, published by CMS.
Legal posture
Every dataset above is published in the public domain by the US federal government (CMS, IRS, HHS) or by individual hospitals under federal mandate (45 CFR §180.50). United States government works are in the public domain by statute (17 USC §105). We republish these datasets with attribution, with date stamps, and with a documented corrections workflow.
Hospital Price Transparency files are the only dataset where the originating publisher is a private entity (the hospital). Each hospital is required to publish their file under federal law; our use is consistent with the Republish-Public-Records doctrine and the same practice followed by CMS itself, Hospital Compare, FairHealth Consumer, and Healthgrades.
Related
- Methodology — how we use this data to estimate fair-market amounts.
- Trust & Security — encryption, no-storage architecture, vulnerability disclosure.
- Privacy Policy