Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Siew, MD

Internal Medicine Physician in Kirkland, WA · enumerated 2006.

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

National Provider Identifier

1225080211

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Registry record

Entity type Individual (Type 1)

Name Dr. David Siew

Credential MD

Sex Male

Practice address 12040 Ne 128th St, Ms 105, Kirkland, WA, 98034

Phone (425) 899-2560

Fax (425) 899-2079

Enumeration date May 17, 2006

Last updated in NPPES Jun 18, 2009

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00044045 (WA) 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
P00324247	Other	WA	MEDICARE RAILROAD
207022	Other	WA	LABOR & INDUSTRIES
8448979	Medicaid	WA	-
1645SI	Other	WA	BLUE SHIELD

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 NPI 1225080211 active?

Yes, as of the latest NPPES snapshot, NPI 1225080211 is active (record last updated 2009-06-18).

How do I verify David Siew's NPI record?

Cross-check NPI 1225080211 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-18.