Search the hospitals' own item descriptions (as published in their price files) for billing codes, e.g. 'mri brain' or 'office visit established'. Returns each code with the hospitals that publish it and their descriptions. Use the code with compare_code_prices or get_payer_rates.

Negotiated-rate summary (min, quartiles, max over payer plans) for one billing code at each hospital in the release, for one rate basis, with the hospital's source file cited on every row. Hospitals that publish the code differently are listed in not_included with what they do publish.

Every published charge for one billing code at one hospital: payer, plan, setting, negotiated rate (or the percentage/algorithm when no dollar figure is published), gross and cash price, with the charge's position in the hospital's source file. The first call downloads the 117 MB charge table once.

Look up a National Provider Identifier in the NPPES registry history: name, entity type, status, practice address and taxonomy as of a date (or now), every version on record, and whether a hospital in the release discloses it. Validates the NPI check digit first.

Per hospital: whether the NPIs its price file discloses resolve to it in NPPES, how many of its NPIs it leaves undisclosed, how its file departs from the CMS template (and how often), and rows quarantined. Use it to qualify any price answer.

The pinned clear-pricer release this server answers from: its tag, the manifest hash it was verified against, the hospital price files and NPPES files it was built from, and each table's row count and status.