Elizabeth Marie Sierra, LCSW, PPSC

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

136156 Issued in CA

Practice address

4218 W Hazard Ave
Santa Ana, CA 92703-2610

Phone

(714) 663-6403

NPI assigned

May 14, 2026

Sex

Female

Sole proprietor

No

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

State licenses

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

{
    "created_epoch": "1778716800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1770412926",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4218 W HAZARD AVE",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927032610",
            "telephone_number": "714-663-6403"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4218 W HAZARD AVE",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927032610",
            "telephone_number": "714-663-6403"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIERRA",
        "first_name": "ELIZABETH",
        "middle_name": "MARIE",
        "credential": "LCSW, PPSC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-05-14",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "136156",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amber Sherrie Sibbett-Robles
• Saif Haq Siddiqi, M.D.
• Pritpal Sidhu
• Douglas Martin Siegmund, FNP-C
• Sierra Clinical Trials & Research Organization, Inc
• Lawrence Joseph Sieve III, O.D.
• Brandon S. Sievers, M.D.
• Eliza Delfina Sifuentes
• Timothy Alan Sigafoos
• Sight Concepts Optometry

• Clinical Social Worker in Santa Ana, CA
• Providers in Santa Ana, 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 May 14, 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.