Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hyundong Steven Hahn, MD

Psychiatry Physician in Waipahu, HI · enumerated 2006.

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

National Provider Identifier

1578513230

Verified

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Registry record

Entity type Individual (Type 1)

Name Hyundong Steven Hahn

Credential MD

Sex Male

Practice address 94-1480 Moaniani St, Waipahu, HI, 96797

Phone (808) 432-3100

Enumeration date May 11, 2006

Last updated in NPPES Oct 15, 2024

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License ME119855 (FL) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD-23035 (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
184840200	Medicaid	MN	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Hyundong Hahn?

Hyundong Hahn is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-15.