Active NPI
Mazzocco Ambulatory Surgical Center
- Ambulatory Surgical Clinic/Center
- Van Nuys, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ambulatory Surgical Clinic/Center
- 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, 2026
- Organization subpart
- No
NPPES NPI Registry
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.
- 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) | Code | License | State | Primary |
|---|---|---|---|---|
| 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 ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| 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 Center
- Medicare certification status
- Active
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 05D0949085 | Mazzocco Ambulatory Surgical Center | Certificate of waiver | Jul 23, 2028 |
National Provider Directory
National Provider DirectoryPractitioners & 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.
-
- Ophthalmology Physician
- Van Nuys, CA
- NPI 1962407593
-
- Ophthalmology Physician
- Pasadena, CA
- NPI 1770748758
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.