George Martin Olsen, DDS

Primary specialty

DentistTaxonomy code 122300000X

License

DE00004703 Issued in WA

Practice address

237 SW Higgins Ave
Ste C
Missoula, MT 59803-1403

Phone

(406) 721-2830

Fax

(406) 549-5053

NPI assigned

Jan 22, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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.

• Smile Missoula PC

  • General Practice Dentistry
  • Missoula, MT
  • NPI 1225306749
  NPD (past) Authorized official

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

{
    "created_epoch": "1169424000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771286400000",
    "number": "1730233412",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "217 S 2ND AVE STE C",
            "city": "WALLA WALLA",
            "state": "WA",
            "postal_code": "993623002",
            "telephone_number": "406-721-2830",
            "fax_number": "406-549-5053"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "237 SW HIGGINS AVE",
            "address_2": "STE C",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598031403",
            "telephone_number": "406-721-2830",
            "fax_number": "406-549-5053"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "217 S 2nd Ave",
            "address_purpose": "LOCATION",
            "city": "Walla Walla",
            "state": "WA",
            "postal_code": "993623002",
            "country_code": "US",
            "telephone_number": "406-370-5879",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLSEN",
        "first_name": "GEORGE",
        "middle_name": "MARTIN",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-22",
        "last_updated": "2026-02-17",
        "certification_date": "2026-02-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "WA",
            "license": "DE00004703",
            "primary": true
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MT",
            "license": "1424",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110162",
            "state": "MT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CHIP",
            "identifier": "5511480",
            "state": "MT"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Colleen Elizabeth Okon, RN
• Lily Oligee, RBT
• Neva McKinnon Oliver, APRN
• Olsen Dental PC (Olsen and Peters Dental Group)
• Diane Olsen, PCLC
• Jason C Olsen, D.D.S., P.C.
• Tessa Marie Olsen
• Barry Arthur Olson, PHYSICAL THERAPY
• Bernard Olson IV, DC
• Byron Chapman Olson, MD

• Dentist in Missoula, MT
• Providers in Missoula, MT by specialty
• Dentist in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.