NPI Portal NPI Lookup & Verification

Physiological Laboratory in Saint Louis, MO

6 active Physiological Laboratory providers practice in Saint Louis, Missouri according to the latest NPPES snapshot. Profiles include the NPI number, taxonomy code, license state, and practice address.

Physiological Laboratory providers in Saint Louis, MO
NPI Name Type Specialty Location
1750475588 Clayton Sleep Institute, LLC Organization Physiological Laboratory Saint Louis, MO
1952482531 National Diagnostics Inc Organization Physiological Laboratory Saint Louis, MO

Frequently asked questions

How many Physiological Laboratory providers are in Saint Louis, MO?
The latest NPPES snapshot lists 6 active Physiological Laboratory providers with a practice address in Saint Louis, Missouri.
How do I check a Physiological Laboratory provider's NPI in Saint Louis?
Open a profile below to see the NPI number, taxonomy code, and practice address, then verify against the official NPPES registry — every profile links directly to the CMS record.

Source: CMS NPPES (public data). Snapshot 2026-07-10.