Elen Joie Mercado, MS, BCBA

Primary specialty

Behavior AnalystTaxonomy code 103K00000X

License

1-26-90953 Issued in CA

Practice address

1521 W Cameron Ave Ste 250
West Covina, CA 91790-2738

Phone

(626) 231-0502

Fax

(626) 407-4779

NPI assigned

Nov 14, 2016

Sex

Female

Sole proprietor

No

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

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

{
    "created_epoch": "1479081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1255873808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1521 W CAMERON AVE STE 250",
            "city": "WEST COVINA",
            "state": "CA",
            "postal_code": "917902738",
            "telephone_number": "626-231-0502",
            "fax_number": "626-407-4779"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1521 W CAMERON AVE STE 250",
            "city": "WEST COVINA",
            "state": "CA",
            "postal_code": "917902738",
            "telephone_number": "626-231-0502",
            "fax_number": "626-407-4779"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCADO",
        "first_name": "ELEN JOIE",
        "credential": "MS, BCBA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-11-14",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "CA",
            "license": "1-26-90953",
            "primary": true
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "CA",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Helen Mendoza
• Rafael Enrique Mendoza, M.D.
• Mental Health and Social Justice Clinic Inc.
• Merakey Allos
• Amanda Mercado
• Mia Mercado
• Samantha Mercado
• Merced Medical Pharmacy
• Merced Medical Pharmacy Inc
• Elizabeth Katherine Mercer, MFT

• Behavior Analyst in West Covina, CA
• Providers in West Covina, CA by specialty
• Behavior Analyst in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 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.