NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Pec Warson, LLC

Optometrist in Saint Louis, MO · enumerated 2019 · authorized official Dirk Massie, Optometrist/Od.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1063058386

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Pec Warson, LLC
Practice address 9973 Manchester Rd, Saint Louis, MO, 63122
Enumeration date Nov 21, 2019
Last updated in NPPES Feb 26, 2026

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Dirk Massie
Title Optometrist/Od

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Pec Warson, LLC located?
The practice location on file with NPPES is in Saint Louis, MO.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-02-26. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-26.