Olivia Ann Kleinsasser

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

Practice address

619 SW Higgins Ave Ste E
Missoula, MT 59803-1430

Phone

(406) 589-6582

NPI assigned

Oct 20, 2025

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1760918400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760918400000",
    "number": "1922975481",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13645 CRYSTAL CREEK RD",
            "city": "CLINTON",
            "state": "MT",
            "postal_code": "598259769"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "619 SW HIGGINS AVE STE E",
            "city": "MISSOULA",
            "state": "MT",
            "postal_code": "598031430",
            "telephone_number": "406-589-6582"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLEINSASSER",
        "first_name": "OLIVIA",
        "middle_name": "ANN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-10-20",
        "last_updated": "2025-10-20",
        "certification_date": "2025-10-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tamara Lee Kittelson-Aldred, MS, OTR, ATP
• Sarah D Kitterman
• Tahj B Kjelland
• Kelly Ann Klauber, PA-C
• Carly Kleinert
• Mary Z Kleschen, MD
• Melissa Kleschen
• Nathan Klette
• Mark Thomas Klietz, DVM
• Joe Klimpel

• Clinical Social Worker in Missoula, MT
• Providers in Missoula, MT by specialty
• Clinical Social Worker in Montana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 20, 2025; 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.