Darwin Chan, MD
NPI 1487709341 · Preventive Medicine/Occupational Environmental Medicine Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darwin Chan, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Honolulu, HI (NPI 1487709341).
Provider details
- NPI number
- 1487709341
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 7011 (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
- 2007-01-23
- Last updated
- 2011-12-09
Frequently asked questions
- What is Darwin Chan's NPI number?
- Darwin Chan's National Provider Identifier (NPI) is 1487709341, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darwin Chan's specialty?
- Darwin Chan is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Darwin Chan located?
- Darwin Chan's practice location on file with NPPES is 545 Ohohia St, Honolulu, HI 96819-1935.
- What is Darwin Chan's phone number?
- The practice phone number listed in the NPPES registry for Darwin Chan is (808) 831-3000.
- Does Darwin Chan accept Medicare?
- Darwin Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darwin Chan's NPI active?
- Yes — Darwin Chan's NPI (1487709341) is active in the NPPES registry as of the last update on 2011-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.