DR. KENNETH A. ETHIER OD PC
NPI 1558719104
Optometrist in Great Falls, MT

Q: What is Dr. Kenneth A. Ethier Od PC's NPI number?

The NPI number for Dr. Kenneth A. Ethier Od PC is 1558719104. It was assigned to this organization in the NPPES registry on May 24, 2016.

Q: What is Dr. Kenneth A. Ethier Od PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Active since May 24, 2016

1525 10TH AVE S, GREAT FALLS, MT 59405(406) 791-5139(406) 453-5701 Get Directions Write a Review

NPPES record last updated: October 27, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Dr. Kenneth A. Ethier Od Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KENNETH A. ETHIER OD PC (NPI 1558719104) is a healthcare organization registered as an optometrist in Great Falls, Montana and active in the NPI registry since May 2016. The organization lists Kenneth A. Ethier, Optometrist, as its authorized official.

NPPES Registry Identity

NPI1558719104

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameDR. KENNETH A. ETHIER OD PC

Location Address1525 10TH AVE SGreat Falls, MT 59405-2608

Mailing Address1525 10th Ave SGreat Falls, MT 59405-2608 · (406) 791-5139 · Fax (406) 453-5701

Phone(406) 791-5139

Fax(406) 453-5701

Organization SubpartNo

Authorized OfficialKenneth A. EthierOptometrist · (406) 791-5139

Enumeration DateMay 24, 2016

Last NPPES UpdateOctober 27, 2025

NPPES CertifiedOctober 27, 2025

✔ NPI 1558719104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in MT · 751

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

1525 10TH AVE S, Great Falls, MT 59405

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Other Identifiers 1

Medicaid1114061256MT

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Kenneth A. Ethier Od Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Dr. Kenneth A. Ethier Od PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Kenneth Ethier, O.D.

Optometry

NPI 1114061256

1525 10TH AVE S
Great Falls, MT 59405

(406) 791-5139

✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dr. Kenneth A. Ethier Od PC's NPI number?

The NPI number for Dr. Kenneth A. Ethier Od PC is 1558719104. It was assigned to this organization in the NPPES registry on May 24, 2016.

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

Dr. Kenneth A. Ethier Od PC is located at 1525 10th Ave S, Great Falls, MT 59405. The listed phone number is (406) 791-5139.

What is Dr. Kenneth A. Ethier Od PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Dr. Kenneth A. Ethier Od PC enrolled in Medicare?

Yes. Dr. Kenneth A. Ethier Od PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Dr. Kenneth A. Ethier Od PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Dr. Kenneth A. Ethier Od PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Dr. Kenneth A. Ethier Od PC accept?

Health plans from Blue Cross and Blue Shield of Montana list Dr. Kenneth A. Ethier Od PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Dr. Kenneth A. Ethier Od PC was last updated on October 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.