Registry data as of Aug 27, 2026

Nikki Del Castillo, DDS

Dentist · Dededo, GU

Nikki Del Castillo, DDS is a dentist with a practice address in Dededo, Guam, and NPI 1356044309, issued on Mar 27, 2023. Check the license (Guam D1058, as entered in NPPES) with the Guam board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1356044309
Name
Nikki Del Castillo
Credential
DDS
Primary taxonomy
Dentist 122300000X
License numbers
D1058 GU
DT-3186 HI
Self-reported in NPPES; status is on the state search
Practice location
505 Harmon Loop RD Ste 300, Dededo, GU 96929
Phone
(671) 637-9696
Enumerated
Mar 27, 2023
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Nikki Del Castillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Guam board licenses this profession
    Search for license D1058
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Guam license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

5 dentist records list a Dededo practice address

They are 5 of the 139 NPPES records with a Dededo practice address, and 27 dentist records in Guam. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other dentist records in Guam

  1. Krystal Mae Aldaca, DDSTamuning, GU1649073586
  2. David Bero, D.D.S.Tamuning, GU1245508670
  3. Jason Hartup, DMDDededo, GU1780856849
  4. William Hightower, D.D.S.Tamuning, GU1336630672
  5. Albert Huang, D.D.S.Dededo, GU1700086147
  6. Jeffrey IvesHagatna, GU1588938229
  7. Damon Jensen, DDSAgana Heights, GU1851598437
  8. Elwood JohnsonTamuning, GU1215158696
  9. Kimberly KaneshiroTamuning, GU1225648322
  10. Backhabwha Kim, DDSHagatna, GU1427451731

Common questions

What is Nikki Del Castillo, DDS's NPI number?

Nikki Del Castillo, DDS's National Provider Identifier (NPI) is 1356044309, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Nikki Del Castillo, DDS located?

The NPPES record lists a practice address at 505 Harmon Loop RD Ste 300, Dededo, GU, 96929. Phone: (671) 637-9696. Providers update this record themselves, so call before visiting.

How can I verify Nikki Del Castillo, DDS's license?

NPPES lists Guam license number D1058, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.