Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Guan Yu Chen, D.M.D.

Dentist in Seattle, WA · enumerated 2025.

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

National Provider Identifier

1205621539

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Registry record

Entity type Individual (Type 1)

Name Mr. Guan Yu Chen

Credential D.M.D.

Sex Male

Practice address 1959 Ne Pacific Street, Box 357134, Seattle, WA, 98195

Phone (514) 516-2191

Enumeration date Apr 9, 2025

Last updated in NPPES Aug 9, 2025

Taxonomy & licenses

122300000X Dentist Dental Providers · License DR.61676402 (WA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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.

Read the full guide → Validate an NPI →

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 Guan Yu Chen?

Guan Yu Chen is registered in NPPES with the primary taxonomy of Dentist. 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 2025-08-09.