Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Julian David Restrepo Castrillon, DDS

Dentist in Downey, CA · enumerated 2025.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1164221776

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Registry record

Entity type Individual (Type 1)

Name Dr. Julian David Restrepo Castrillon

Credential DDS

Sex Male

Practice address 11942 Paramount Blvd, Downey, CA, 90242

Phone (562) 904-6930

Enumeration date Mar 8, 2025

Last updated in NPPES Apr 17, 2025

Taxonomy & licenses

122300000X Dentist Dental Providers · License 111159 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

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Frequently asked questions

What specialty is Julian Restrepo Castrillon?

Julian Restrepo Castrillon is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Maribel Brand DDS Inc Dentist · Downey, CA NPI 1336327345 Maribel Brand Dentist · Downey, CA NPI 1154509180 Ame Medical Group Inc Family Medicine Physician · Downey, CA NPI 1861711863 Wendy Nguyen Medical Physician Assistant · Downey, CA NPI 1508249962 Katie Nguyen Nurse Practitioner · Downey, CA NPI 1851839880 Ebony Bankhead Family Nurse Practitioner · Downey, CA NPI 1811406168 Alessandra Adamo Nurse Practitioner · Downey, CA NPI 1295228799 Yunji Kim Primary Care Nurse Practitioner · Downey, CA NPI 1144786369

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-17.