Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Walman Optical Company

Eyewear Supplier in Great Falls, MT · enumerated 2007 · authorized official Robert Gustin, Vice President.

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

National Provider Identifier

1477677623

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Registry record

Entity type Organization (Type 2)

Legal business name Walman Optical Company

Practice address 410 Central Avenue, 320 Strain Building, Great Falls, MT, 59401

Phone (406) 761-2872

Fax (406) 761-8194

Enumeration date Mar 16, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

332H00000X Eyewear Supplier Suppliers Primary

Authorized official

Name Robert Gustin

Title Vice President

Phone (612) 520-6000

Other identifiers

Identifier	Type	State	Issuer
5520019	Other	MT	CHIP PROVIDER NUMBER
0550043	Medicaid	MT	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is Walman Optical Company located?

The practice location on file with NPPES is in Great Falls, MT.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.