Yu-Nien Agustin, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

137944 Issued in CA

Practice address

3401 Aero Jet Ave
El Monte, CA 91731-2801

Phone

(626) 286-8700

Fax

(626) 286-8650

NPI assigned

Apr 7, 2026

Last updated

Apr 7, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Yu-Nien Chang Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Specialty

Clinical Social Worker

Education

Other, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1775520000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775520000000",
    "number": "1265374391",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3401 AERO JET AVE",
            "city": "EL MONTE",
            "state": "CA",
            "postal_code": "917312801",
            "telephone_number": "626-286-8700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3401 AERO JET AVE",
            "city": "EL MONTE",
            "state": "CA",
            "postal_code": "917312801",
            "telephone_number": "626-286-8700",
            "fax_number": "626-286-8650"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AGUSTIN",
        "first_name": "YU-NIEN",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-04-07",
        "last_updated": "2026-04-07",
        "certification_date": "2026-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "137944",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "YU-NIEN",
            "last_name": "CHANG",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Gabriela Aguilar
• Gabriela Aguilar
• Genoveva Aguilar, M.D.
• Gloria Maria Aguilar, REGISTER NURSE
• Tania Aguilera
• Marwa Nevenna Ahady, PA-C
• AIDS Healthcare Foundation (Ahf)
• Aimant Hospice, Inc.
• Mohlab Al Sammarraie, DDS
• Sandra Alarcon

• Clinical Social Worker in El Monte, CA
• Providers in El Monte, CA by specialty
• Clinical Social Worker in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 7, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.