How we verify

Sleep Clinic Index is compiled from public records, not from who paid to be listed.

Sources

• NPPES NPI Registry (CMS) — The federal registry of National Provider Identifiers, published monthly by the Centers for Medicare & Medicaid Services. We use the September 2026 bulk file.
• NUCC Health Care Provider Taxonomy — The code set that defines each registered specialty.

We load every active NPI in the NPPES data (the monthly bulk file plus CMS's weekly updates) whose primary taxonomy is Clinic/Center, Sleep Disorder Diagnostic (261QS1200X), organizations only. Deactivated NPIs are excluded.

The registered specialty and license number are what each organization entered when registering. NPPES does not verify them, and it does not show accreditation. We link every profile to the official registry record.

We drop organizations whose NPI record has not been updated since before 2013, because providers must update NPPES within 30 days of a change; a record untouched for over a decade usually belongs to a center that has closed or moved. Organizations with the same name, address and ZIP are merged.

Center-type categories come from words in the organization's name (hospital, medical center, pediatric). They are a convenience for browsing, not a statement about services.

Order within a city: NPI records updated in 2024 or later first, then 2019 to 2023, then older, each alphabetical. Featured listings appear in a separate, labelled box and never change that order.

What a badge means

Registry-checked: the organization's National Provider Identifier (NPI) is active in the September 2026 NPPES file published by CMS. Each listing shows the registered specialty and any license number exactly as the organization entered them. We only publish positive matches. A listing without a badge is not an accusation — most gaps are name variations between registries.

Freshness

Data was last refreshed on 2026-10-22. CMS publishes the full NPPES file every month and weekly update files in between; we apply both every week, so listings are at most about a week behind, and every page shows the date of the data.

Corrections

Email sabrsystemssoftware@gmail.com or claim your listing on the for-business page. We fix verified errors within two business days.