Kenneth A Ethier, O.D.

Primary specialty

OptometristTaxonomy code 152W00000X

License

751 Issued in MT

Practice address

1525 10TH Ave S
Great Falls, MT 59405-2608

Phone

(406) 791-5139

NPI assigned

Feb 19, 2007

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MT

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Dr. Kenneth a. Ethier OD PC

  • Optometrist
  • Great Falls, MT
  • NPI 1558719104
  Medicare reassignment NPD Authorized official

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1171843200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761523200000",
    "number": "1114061256",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1025 10TH AVENUE SOUTH",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "59405",
            "telephone_number": "406-791-5139"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1525 10TH AVE S",
            "city": "GREAT FALLS",
            "state": "MT",
            "postal_code": "594052608",
            "telephone_number": "406-791-5139"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ETHIER",
        "first_name": "KENNETH",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "O.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-02-19",
        "last_updated": "2025-10-27",
        "certification_date": "2025-10-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "MT",
            "license": "751",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "807265600",
            "state": "ID"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ericafnpsteele PLLC
• Kate Ann Erickson, PT, DPT
• Taron Esbri, BS, RBT
• Thomas Joseph Eskelsen, D.O.
• Espe Navigation Group, LLC
• Eugene a. Tynes D.D.S. P.C.
• Diane L Evans, CRNP
• Paige Nicole Evans, BA
• Eve M Gerasimou,MD LLC
• Julie Schwartz Evenson, R.PH

• Optometrist in Great Falls, MT
• Providers in Great Falls, MT by specialty
• Optometrist in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 27, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.