Kathryn Stewart, BCBA, LBA

Primary specialty

Behavior AnalystTaxonomy code 103K00000X

License

BA60777150 Issued in WA

Practice address

6523 California Ave SW Ste 19
Seattle, WA 98136-1833

Phone

(253) 370-4780

NPI assigned

Mar 19, 2015

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

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.

• Magnolia Consulting

  • Behavior Analyst
  • Lake Stevens, WA
  • NPI 1528371226
  NPD (past)

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

{
    "created_epoch": "1426723200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1508250242",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5417 96TH AVENUE CT NW",
            "city": "GIG HARBOR",
            "state": "WA",
            "postal_code": "983356094",
            "telephone_number": "253-370-4780"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6523 CALIFORNIA AVE SW STE 19",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981361833",
            "telephone_number": "253-370-4780"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STEWART",
        "first_name": "KATHRYN",
        "credential": "BCBA, LBA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2015-03-19",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "WA",
            "license": "BA60777150",
            "primary": true
        },
        {
            "code": "106E00000X",
            "taxonomy_group": "",
            "desc": "Assistant Behavior Analyst",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John A Stewart, RN
• Julia Marie Stewart, LMP
• Justin Ryan Stewart, SUDP-T
• Kate L Stewart, MA
• Katherine B Stewart, OT
• Kathryn Stewart, MC61393010
• Kelly Stewart
• Laura Alana Stewart, RN
• Leandra Jonicole Stewart, PHD
• Leslie Marie Stewart, LMP

• Behavior Analyst in Seattle, WA
• Providers in Seattle, WA by specialty
• Behavior Analyst in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 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.