McKenzie L Sienkiewich

Primary specialty

Social WorkerTaxonomy code 104100000X

License

SWIA.SC.61621115 Issued in WA

Practice address

9125 Bridgeport Way SW Ste 102
Lakewood, WA 98499-2448

Phone

(253) 843-7858

NPI assigned

Aug 8, 2019

Reactivated

Nov 6, 2024

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

Other identifiers 1

Other names 1

• McKenzie L Cooper Former name

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.

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  NPD (past)

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

{
    "created_epoch": "1565222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789171200000",
    "number": "1124673934",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "27421 30TH AVE E",
            "city": "SPANAWAY",
            "state": "WA",
            "postal_code": "98387"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9125 BRIDGEPORT WAY SW STE 102",
            "city": "LAKEWOOD",
            "state": "WA",
            "postal_code": "984992448",
            "telephone_number": "253-843-7858"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIENKIEWICH",
        "first_name": "MCKENZIE",
        "middle_name": "L",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-08-08",
        "last_updated": "2026-09-12",
        "certification_date": "2026-09-12",
        "deactivation_date": "2024-10-09",
        "reactivation_date": "2024-11-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "WA",
            "license": "SWIA.SC.61621115",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LSWAIC",
            "identifier": "SWIA.SC.61621115",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MCKENZIE",
            "last_name": "COOPER",
            "middle_name": "L",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Social Worker in Lakewood, WA
• Providers in Lakewood, WA by specialty
• Social Worker in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 12, 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.