Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joy C Wu, D.O.

Q: What specialty is Joy Wu?

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

Dermatology Physician in Mill Creek, WA · enumerated 2006.

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

National Provider Identifier

1255303632

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Registry record

Entity type Individual (Type 1)

Name Joy C Wu

Credential D.O.

Sex Female

Practice address 15906 Mill Creek Blvd, Ste 105, Mill Creek, WA, 98012

Phone (425) 385-2009

Fax (425) 939-0807

Enumeration date Feb 1, 2006

Last updated in NPPES May 22, 2012

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 0102201216 (VA) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 6867 (AK) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License OP 60212402 (WA) 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
MD1434	Medicaid	AK	-

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 Joy Wu?

Joy Wu is registered in NPPES with the primary taxonomy of Dermatology 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 2012-05-22.