Organization Active NPI

Westside Treatment, LLC.

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Los Angeles, CA
National Provider Identifier
1093129306
Registry record updated Aug 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Substance Use Disorder Rehabilitation Clinic/CenterTaxonomy code 261QR0405X
Legal business name
WESTSIDE TREATMENT, LLC.
Practice address
11150 W Olympic Blvd
Ste 760
Los Angeles, CA 90064-1817
Phone
(855) 619-5383
Fax
(310) 894-5354
NPI assigned
Jun 13, 2014
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 29, 2025

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

Authorized official

Name
Mr. Castle BrusaNPI 1649165978
Title
Chief Operating Officer
Phone
(855) 619-5383

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 6

Specialty (taxonomy)CodeLicenseStatePrimary
Community/Behavioral Health Agency 251S00000X
Mental Health Clinic/Center (Including Community Mental Health Center) 261QM0801X
Adult Mental Health Clinic/Center 261QM0850X
Substance Use Disorder Rehabilitation Clinic/Center 261QR0405X Primary
Substance Use Disorder Rehabilitation Hospital Unit 276400000X
Substance Abuse Rehabilitation Facility 324500000X

Addresses

Primary practice location

11150 W Olympic Blvd
Ste 760
Los Angeles, CA 90064-1817

Mailing address

11150 W Olympic Blvd Ste 760
Los Angeles, CA 90064-1855

Other names 1

  • Totality Treatment Center Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20250715003602 CA Part B Supplier - Clinic/Group Practice 6709391071 Receives reassigned benefits from 1 practitioner
Practice locations: Los Angeles, CA

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
05D2098568Westside Treatment, LLC11150 W Olympic Blvd Ste 760, Los Angeles, CA 90064Certificate of waiverJul 8, 2027

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1402617600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1756425600000",
    "number": "1093129306",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11150 W OLYMPIC BLVD STE 760",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900641855"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11150 W OLYMPIC BLVD",
            "address_2": "STE 760",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900641817",
            "telephone_number": "855-619-5383",
            "fax_number": "310-894-5354"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WESTSIDE TREATMENT, LLC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2014-06-13",
        "last_updated": "2025-08-29",
        "certification_date": "2025-08-29",
        "status": "A",
        "authorized_official_last_name": "BRUSA",
        "authorized_official_first_name": "CASTLE",
        "authorized_official_title_or_position": "CHIEF OPERATING OFFICER",
        "authorized_official_telephone_number": "855-619-5383",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QM0801X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Mental Health (Including Community Mental Health Center)",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QM0850X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Adult Mental Health",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QR0405X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Rehabilitation, Substance Use Disorder",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "276400000X",
            "taxonomy_group": "",
            "desc": "Rehabilitation, Substance Use Disorder Unit",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "324500000X",
            "taxonomy_group": "",
            "desc": "Substance Abuse Rehabilitation Facility",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Totality Treatment Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Los Angeles, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 29, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.