# clia-laboratory-records

> https://clia-laboratory-records.pages.dev

## What this site answers

One query, one record. Key: **a laboratory or facility name, or a 10-character CLIA number**.
Format: ^[0-9]{2}D[0-9]{7}$
Entities: 681059

## Source

- Origin: Centers for Medicare & Medicaid Services — Provider of Services File, Clinical Laboratories
- URL: https://data.cms.gov/provider-characteristics/hospitals-and-other-facilities/provider-of-services-file-clinical-laboratories
- Last collected: 2026-06-29
- Re-use: Public domain (work of the United States government).

## Access points

Every HTML page has a Markdown twin at the same path with the `.md` extension. Example: `/how-to-read/` -> `/how-to-read.md`. Links inside the Markdown files already point to the twins.

Search index, served as JSON with open CORS:

- `https://clia-laboratory-records.pages.dev/d/n/cles.json` — the name-index keys
- `https://clia-laboratory-records.pages.dev/d/n/<key>.json` — names starting with that key -> [CLIA number, name, city, state, active 1/0]
- `https://clia-laboratory-records.pages.dev/d/r/<fragment>.json` — records; fragment = the 9 digits of the CLIA number (its letter D removed), modulo 4096, in hexadecimal on 3 digits
- `/sitemap.xml` — every page

These paths are **version 1** and will not change without notice. Bulk access, an availability guarantee or a change feed goes through `/pro/`.

Indexable pages: 92

## What this site is NOT

- This is not the official register and does not replace consulting it.
- Holding a licence is the minimum legal requirement, not a quality mark.
- One record per CLIA number, active and terminated.
- A certificate type says which tests a laboratory may perform; it is not a quality rating.
- The file is quarterly: a number issued after the file date is absent, not invalid.
- This site ranks no one.

## Privacy

Phone and fax numbers are not republished; laboratories named only after a person are not listed on any page; the file contains no patient information.