Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kuo Hau Chang, D.O.

Hospitalist Physician in Duluth, MN · enumerated 2006.

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

National Provider Identifier

1124077425

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Registry record

Entity type Individual (Type 1)

Name Kuo Hau Chang

Credential D.O.

Sex Male

Practice address 915 E 1st St, Duluth, MN, 55805

Phone (218) 249-5225

Fax (218) 249-5500

Enumeration date May 6, 2006

Last updated in NPPES Dec 4, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 220820 (NY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 53786 (MN) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 53786 (MN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
00354316	Medicaid	NY	-

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 Kuo Hau Chang?

Kuo Hau Chang is registered in NPPES with the primary taxonomy of Hospitalist Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-04.