Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Nikki Jose Del Castillo, DDS

Dentist in Dededo, GU · enumerated 2023.

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

National Provider Identifier

1356044309

Verified

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Registry record

Entity type Individual (Type 1)

Name Nikki Jose Del Castillo

Credential DDS

Sex Female

Practice address Dededo, GU, 96929

Phone (671) 637-9696

Enumeration date Mar 27, 2023

Last updated in NPPES May 1, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License DT-3186 (HI) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

122300000X Dentist Dental Providers · License D1058 (GU) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Nikki Del Castillo practice?

The practice location on file with NPPES is in Dededo, GU. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Nikki Del Castillo?

The National Provider Identifier (NPI) for Nikki Del Castillo is 1356044309, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-01.