Individual provider Active NPI

Christian Castellanos

  • Physician Assistant
  • Oxnard, CA
National Provider Identifier
1346027828
Registry record updated Jun 25, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA66452 Issued in CA
Practice address
2221 Wankel Way
Oxnard, CA 93030-0192
Phone
(805) 988-9366
Fax
(805) 483-3747
NPI assigned
Sep 11, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 25, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA66452 CA Primary

Addresses

Primary practice location

2221 Wankel Way
Oxnard, CA 93030-0192

Mailing address

1203 Flynn Rd Unit 160
Camarillo, CA 93012-6203
Phone (805) 804-4168

Other practice location 1

3901 Las Posas Rd Ste 4
Camarillo, CA 93010-1502
Phone (805) 585-5166

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250702003856 CA Practitioner - Physician Assistant 7214440197 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Ventura Orthopedics Medical Group IncGroup PAC ID 2062312911, 79 clinicians

Practice addresses (Care Compare)

2221 Wankel Way
Oxnard, CA 93030-0192
Phone (805) 988-9366

2525 Erringer Rd
Simi Valley, CA 93065-2352
Phone (805) 527-1404

3525 Loma Vista Rd
Ventura, CA 93003-3165

3901 Las Posas Rd
Camarillo, CA 93010-1502

Hospital & facility affiliations

  • St Johns Regional Medical Center Hospital, Oxnard, CA, CCN 050082
  • Adventist Health Simi Valley Hospital, Simi Valley, CA, CCN 050236

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA66452CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Ventura Orthopedics Medical Group, Inc. CurrentSince Jul 1, 2025 Accepting new patients
Ventura Orthopedics Medical Group, Inc. Past Accepting new patients
Trias Global, LLC Past Accepting new patients

Locations

3901 Las Posas Rd
Ste 4
Camarillo, CA 93010
Phone (805) 585-5166

1203 Flynn Rd
Unit 160
Camarillo, CA 93012
Phone (805) 306-9700

2221 Wankel Way
Oxnard, CA 93030
Phone (805) 988-9366

2525 Erringer Rd
Simi Valley, CA 93065
Phone (805) 527-1404

137 E Thousand Oaks Blvd
Thousand Oaks, CA 91360
Phone (805) 379-4574

3525 Loma Vista Rd
Ste A
Ventura, CA 93003
Phone (805) 641-6415

3525 Loma Vista Rd
Ste C
Ventura, CA 93003
Phone (805) 652-6955

1145 Lindero Canyon Rd
Ste C1
Westlake Village, CA 91362
Phone (818) 865-9800

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1694390400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750809600000",
    "number": "1346027828",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1203 FLYNN RD UNIT 160",
            "city": "CAMARILLO",
            "state": "CA",
            "postal_code": "930126203",
            "telephone_number": "805-804-4168",
            "fax_number": "805-830-1177"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2221 WANKEL WAY",
            "city": "OXNARD",
            "state": "CA",
            "postal_code": "930300192",
            "telephone_number": "805-988-9366",
            "fax_number": "805-483-3747"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3901 Las Posas Rd Ste 4",
            "address_purpose": "LOCATION",
            "city": "Camarillo",
            "state": "CA",
            "postal_code": "930101502",
            "country_code": "US",
            "telephone_number": "805-585-5166",
            "fax_number": "805-383-1786",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CASTELLANOS",
        "first_name": "CHRISTIAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-09-11",
        "last_updated": "2025-06-25",
        "certification_date": "2025-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA66452",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oxnard, CA

Sources for this page

Verify at the official NPI Registry.