Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Darwin Chan, MD

General Practice Physician in Honolulu, HI · enumerated 2007.

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

National Provider Identifier

1487709341

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Registry record

Entity type Individual (Type 1)

Name Dr. Darwin Chan

Credential MD

Sex Male

Practice address 545 Ohohia St, Honolulu, HI, 96819

Phone (808) 831-3000

Fax (808) 834-5763

Enumeration date Jan 23, 2007

Last updated in NPPES Jun 18, 2026

Taxonomy & licenses

2083P0500X Preventive Medicine/Occupational Environmental Medicine Physician Allopathic & Osteopathic Physicians · License 7011 (HI) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD-7011 (HI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
04958701	Medicaid	HI	-
99-0273205	Other	HI	HMA-HMAA-SUMMERLIN-UHA-O
00A0080927	Other	HI	BLUES
0006095000	Medicaid	HI	-
E34709	Other	HI	UGS

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Darwin Chan?

Darwin Chan is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Timothy Tsuchidana Preventive Medicine/Occupational Environmental Medicine Physician · Honolulu, HI NPI 1336265123 Phuong Nguyen Physical Therapy Assistant · Honolulu, HI NPI 1790081016 Sean Thang Pham Family Medicine Physician · Honolulu, HI NPI 1164950523 Hazel Calinao Physical Therapist · Honolulu, HI NPI 1760363139

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-18.