Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. Kenneth A. Ethier Od PC

Optometrist in Great Falls, MT · enumerated 2016 · authorized official Kenneth Ethier, Optometrist.

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

National Provider Identifier

1558719104

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Dr. Kenneth A. Ethier Od PC

Practice address 1525 10th Ave S, Great Falls, MT, 59405

Phone (406) 791-5139

Fax (406) 453-5701

Enumeration date May 24, 2016

Last updated in NPPES Oct 27, 2025

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 751 (MT) Primary

Authorized official

Name Kenneth Ethier

Title Optometrist

Phone (406) 791-5139

Other identifiers

Identifier	Type	State	Issuer
1114061256	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

Where is Dr. Kenneth A. Ethier Od PC located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-10-27. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Kenneth Ethier Optometrist · Great Falls, MT NPI 1114061256 Eyemart Express Ltd Eyewear Supplier · Great Falls, MT NPI 1114354958 Eye Mart Express LLC Eyewear Supplier · Great Falls, MT NPI 1932507894

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-27.