Individual provider Active NPI

Luz Mayela Ellsworth, BCBA

  • Behavior Analyst
  • Alhambra, CA
National Provider Identifier
1508346479
Registry record updated Apr 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Behavior AnalystTaxonomy code 103K00000X
Practice address
1515 W Mission Rd
Alhambra, CA 91803-1618
Phone
(626) 943-3000
NPI assigned
Aug 20, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 16, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Behavior Analyst 103K00000X Primary

Addresses

Primary practice location

1515 W Mission Rd
Alhambra, CA 91803-1618

Mailing address

1515 W Mission Rd
Alhambra, CA 91803-1618
Phone (626) 943-3000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Open Pathways ABA LLC Behavior Analyst Current Accepting new patients
Alhambra Unified School District PastSince Oct 27, 2019 Accepting new patients

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1534723200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776297600000",
    "number": "1508346479",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1515 W MISSION RD",
            "city": "ALHAMBRA",
            "state": "CA",
            "postal_code": "918031618",
            "telephone_number": "626-943-3000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1515 W MISSION RD",
            "city": "ALHAMBRA",
            "state": "CA",
            "postal_code": "918031618",
            "telephone_number": "626-943-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELLSWORTH",
        "first_name": "LUZ",
        "middle_name": "MAYELA",
        "name_prefix": "Ms.",
        "credential": "BCBA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-08-20",
        "last_updated": "2026-04-16",
        "certification_date": "2026-04-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Alhambra, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 16, 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.