Individual provider Active NPI

Cassandra Marie O'Boyle, LMSW

  • Social Worker
  • Las Vegas, NV
National Provider Identifier
1336986801
Registry record updated Apr 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
12987-M Issued in NV
Practice address
4485 S Buffalo Dr # 1
Las Vegas, NV 89147-5006
Phone
(702) 888-6300
NPI assigned
Jul 11, 2024
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 21, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X 12987-M NV Primary

Addresses

Primary practice location

4485 S Buffalo Dr # 1
Las Vegas, NV 89147-5006

Mailing address

4485 S Buffalo Dr # 1
Las Vegas, NV 89147-5006
Phone (702) 888-6300

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

State licenses

LicenseStateTypeSpecialty
12987-MNVMDSocial Worker

NPI Registry JSON

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

{
    "created_epoch": "1720656000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1336986801",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4485 S BUFFALO DR # 1",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891475006",
            "telephone_number": "702-888-6300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4485 S BUFFALO DR # 1",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891475006",
            "telephone_number": "702-888-6300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BOYLE",
        "first_name": "CASSANDRA",
        "middle_name": "MARIE",
        "credential": "LMSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-07-11",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NV",
            "license": "12987-M",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Las Vegas, NV

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 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.