Coy Orville Williard III

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

License

RT1421941025 Issued in CA

Practice address

225 N Mariposa Ave
Los Angeles, CA 90004-4509

Phone

(213) 736-5441

NPI assigned

Jun 9, 2026

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

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": "1780963200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780963200000",
    "number": "1285568808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13181 CROSSROADS PKWY N STE 440",
            "city": "CITY OF INDUSTRY",
            "state": "CA",
            "postal_code": "917463499",
            "telephone_number": "562-353-5611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "225 N MARIPOSA AVE",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900044509",
            "telephone_number": "213-736-5441"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIARD",
        "first_name": "COY",
        "middle_name": "ORVILLE",
        "name_suffix": "III",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-06-09",
        "last_updated": "2026-06-09",
        "certification_date": "2026-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "CA",
            "license": "RT1421941025",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Denise D Williamson, M.D.
• Elizabeth Estelle Williamson, MA, BCBA
• Eric Williamson, MD
• Matthew Williamson
• Rickey Williamson, PHD
• Giselle Haettig Willick, PHARMD
• Precious N Willie
• Trisha Willie, OT
• Christine Michelle Willinger, MD, MPH
• Angela L Willis

• Addiction (Substance Use Disorder) Counselor in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Addiction (Substance Use Disorder) Counselor in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 9, 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.