Individual provider Active NPI

Ariana Lopez Casillas

  • Social Worker
  • San Francisco, CA
National Provider Identifier
1578283610
Registry record updated Nov 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
131983 Issued in CA
Practice address
425 7TH St
San Francisco, CA 94103-4500
Phone
(650) 266-7569
NPI assigned
Aug 30, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 19, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X 131983 CA Primary
Community Health Worker 172V00000X
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

425 7TH St
San Francisco, CA 94103-4500

Mailing address

PO Box 962
Boyes Hot Springs, CA 95416-0962

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

NPI Registry JSON

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

{
    "created_epoch": "1661817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1578283610",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 962",
            "city": "BOYES HOT SPRINGS",
            "state": "CA",
            "postal_code": "954160962"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "425 7TH ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941034500",
            "telephone_number": "650-266-7569"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LOPEZ CASILLAS",
        "first_name": "ARIANA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-08-30",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CA",
            "license": "131983",
            "primary": true
        },
        {
            "code": "172V00000X",
            "taxonomy_group": "",
            "desc": "Community Health Worker",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 2025; 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.