Guillermo Castro, DMD
NPI 1679259642 · Student in an Organized Health Care Education/Training Program · Waianae, HI
Enrolled with Medicare as Practitioner - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo Castro, DMD is a Student in an Organized Health Care Education/Training Program provider in Waianae, HI (NPI 1679259642).
Provider details
- NPI number
- 1679259642
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 85-175 Ferrington Highway A334Waianae, HI 96792Phone: (912) 844-2200
Registry dates
- Enumerated
- 2023-06-26
- Last updated
- 2023-06-26
- Certified
- 2023-06-25
Frequently asked questions
- What is Guillermo Castro's NPI number?
- Guillermo Castro's National Provider Identifier (NPI) is 1679259642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guillermo Castro's specialty?
- Guillermo Castro is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Guillermo Castro located?
- Guillermo Castro's practice location on file with NPPES is 86-260 Farrington Highway, Waianae, HI 96792-0241.
- What is Guillermo Castro's phone number?
- The practice phone number listed in the NPPES registry for Guillermo Castro is (808) 697-3300.
- Does Guillermo Castro accept Medicare?
- Guillermo Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guillermo Castro's NPI active?
- Yes — Guillermo Castro's NPI (1679259642) is active in the NPPES registry as of the last update on 2023-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.