Reuben Guerrero, M.D.
NPI 1417961038 · Medical Oncology Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Reuben Guerrero, M.D. is a Medical Oncology Physician provider in Honolulu, HI (NPI 1417961038).
Provider details
- NPI number
- 1417961038
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-2511 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-07-28
- Last updated
- 2010-09-29
Frequently asked questions
- What is Reuben Guerrero's NPI number?
- Reuben Guerrero's National Provider Identifier (NPI) is 1417961038, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Reuben Guerrero's specialty?
- Reuben Guerrero is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Reuben Guerrero located?
- Reuben Guerrero's practice location on file with NPPES is 888 S King St, Honolulu, HI 96813-3009.
- What is Reuben Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Reuben Guerrero is (808) 522-4333.
- Does Reuben Guerrero accept Medicare?
- Reuben Guerrero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Reuben Guerrero's NPI active?
- Yes — Reuben Guerrero's NPI (1417961038) is active in the NPPES registry as of the last update on 2010-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.