Organization Active NPI

Mazzocco Ambulatory Surgical Center

  • Ambulatory Surgical Clinic/Center
  • Van Nuys, CA
National Provider Identifier
1255314662
Registry record updated Jun 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X
Legal business name
MAZZOCCO AMBULATORY SURGICAL CENTER
Practice address
15243 Vanowen St
Van Nuys, CA 91405-3605
Phone
(818) 787-2020
Fax
(818) 787-8652
NPI assigned
Nov 21, 2005
Last updated
Jun 22, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 22, 2026

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

Authorized official

Name
Dr. George M Rajacich, M.D.NPI 1962407593
Title
Owner
Phone
(818) 787-2020

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 1

Specialty (taxonomy)CodeLicenseStatePrimary
Ambulatory Surgical Clinic/Center 261QA1903X CA Primary

Addresses

Primary practice location

15243 Vanowen St
Van Nuys, CA 91405-3605

Mailing address

14624 Sherman Way Ste 508
Van Nuys, CA 91405-2289
Phone (818) 787-2020

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20120611000468 CA Part B Supplier - Ambulatory Surgical Center 7012171671 Practice locations: Van Nuys, CA

Care Compare: Ambulatory surgical center

Medicare Care Compare
Listed as
Mazzocco Ambulatory Surgical CenterCCN 05C0001014
Medicare certification status
ActiveFrom the Provider of Services file

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
05D0949085Mazzocco Ambulatory Surgical Center15243 Vanowen St Suite 202, Van Nuys, CA 91405Certificate of waiverJul 23, 2028

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, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1132531200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1782086400000",
    "number": "1255314662",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14624 SHERMAN WAY STE 508",
            "city": "VAN NUYS",
            "state": "CA",
            "postal_code": "914052289",
            "telephone_number": "818-787-2020",
            "fax_number": "818-787-8652"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15243 VANOWEN ST",
            "city": "VAN NUYS",
            "state": "CA",
            "postal_code": "914053605",
            "telephone_number": "818-787-2020",
            "fax_number": "818-787-8652"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MAZZOCCO AMBULATORY SURGICAL CENTER",
        "organizational_subpart": "NO",
        "enumeration_date": "2005-11-21",
        "last_updated": "2026-06-22",
        "certification_date": "2026-06-22",
        "status": "A",
        "authorized_official_last_name": "RAJACICH",
        "authorized_official_first_name": "GEORGE",
        "authorized_official_middle_name": "M",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "818-787-2020",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Van Nuys, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 22, 2026; 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.