Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Christian Castellanos
Physician Assistant in Oxnard, CA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346027828
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Registry record
Entity type Individual (Type 1)
Name Christian Castellanos
Sex Male
Practice address 2221 Wankel Way, Oxnard, CA, 93030
Phone (805) 988-9366
Fax (805) 483-3747
Enumeration date Sep 11, 2023
Last updated in NPPES Jun 25, 2025
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA66452 (CA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Christian Castellanos?
The National Provider Identifier (NPI) for Christian Castellanos is 1346027828, a Type 1 (individual) record in the CMS NPPES registry.
Where does Christian Castellanos practice?
The practice location on file with NPPES is in Oxnard, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Kevin Deitel Orthopaedic Surgery of the Spine Physician · Oxnard, CA NPI 1033111380 Mark Ghilarducci Sports Medicine (Orthopaedic Surgery) Physician · Oxnard, CA NPI 1922063700 Andre Ishak Orthopaedic Hand Surgery Physician · Oxnard, CA NPI 1639135445 Raymond Pierson Physical Medicine & Rehabilitation Physician · Oxnard, CA NPI 1801852611 Craig Zeman Adult Reconstructive Orthopaedic Surgery Physician · Oxnard, CA NPI 1710943618 Sandra Sipe Physical Therapist · Oxnard, CA NPI 1942319751 Deborah Fuqua Cuen Occupational Therapist · Oxnard, CA NPI 1366544751 Deborah Nadel Orthopedic Physical Therapist · Oxnard, CA NPI 1780782961
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-25.