Gwendolyn J Olson, MSW, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

9781 Issued in WI

Practice address

302 N 3Rd St Ste 112
Watertown, WI 53094-3723

Phone

(920) 212-1445

NPI assigned

Sep 14, 2020

Sex

Female

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 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

Interoperability endpoints

• Direct secure messaging: gwendolyn.olson.1@17022.direct.athenahealth.com

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

{
    "created_epoch": "1600041600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788480000000",
    "number": "1770198988",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "302 N 3RD ST STE 104",
            "city": "WATERTOWN",
            "state": "WI",
            "postal_code": "530943723",
            "telephone_number": "920-212-1445"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "302 N 3RD ST STE 112",
            "city": "WATERTOWN",
            "state": "WI",
            "postal_code": "530943723",
            "telephone_number": "920-212-1445"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLSON",
        "first_name": "GWENDOLYN",
        "middle_name": "J",
        "credential": "MSW, LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-09-14",
        "last_updated": "2026-09-04",
        "certification_date": "2026-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "WI",
            "license": "9781",
            "primary": true
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "WI",
            "license": "131482",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1770198988",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Clinical Social Worker in Watertown, WI
• Providers in Watertown, WI by specialty
• Clinical Social Worker in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 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.