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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Koji Iizuka, M.D.

Psychiatry Physician in Honolulu, HI · enumerated 2010.

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

National Provider Identifier

1811213523

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Registry record

Entity type Individual (Type 1)
Name Dr. Koji Iizuka
Credential M.D.
Sex Male
Practice address 928 Nuuanu Ave Lowr Level, Honolulu, HI, 96817
Phone (808) 728-6618
Fax (808) 215-4255
Enumeration date Apr 20, 2010
Last updated in NPPES Jun 24, 2025

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License EMTL-2020-023 (GU) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 16581 (HI) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 NPI 1811213523 active?
Yes, as of the latest NPPES snapshot, NPI 1811213523 is active (record last updated 2025-06-24).
How do I verify Koji Iizuka's NPI record?
Cross-check NPI 1811213523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-24.