Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Esther T Chu

Oncology Pharmacist in Kirkland, WA · enumerated 2026.

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

National Provider Identifier

1154276848

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Registry record

Entity type Individual (Type 1)

Name Esther T Chu

Sex Female

Practice address 12040 Ne 128th St, Kirkland, WA, 98034

Phone (425) 441-2600

Enumeration date Feb 27, 2026

Last updated in NPPES Feb 27, 2026

Taxonomy & licenses

1835X0200X Oncology Pharmacist Pharmacy Service Providers · License PH00062100 (WA) Primary

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 Esther Chu?

Esther Chu is registered in NPPES with the primary taxonomy of Oncology Pharmacist. 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 2026-02-27.