Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Helen Kuan Quan, M.D.

General Practice Physician in Seattle, WA · enumerated 2007 · practices at Helen K Quan MD Ps Inc.

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

National Provider Identifier

1922281419

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Registry record

Entity type Individual (Type 1)

Name Dr. Helen Kuan Quan

Credential M.D.

Sex Female

Practice address 6517 35th Ave Sw, Seattle, WA, 98126

Phone (206) 937-1050

Fax (206) 937-9590

Enumeration date Dec 7, 2007

Last updated in NPPES Feb 15, 2008

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License MD00019716 (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
63712	Other	WA	LABOR AND INDUSTRIES
4282309	Other	-	AETNA
1067750	Medicaid	WA	-
91943	Other	-	FIRST CHOICE
QU4050	Other	WA	REGENCE BLUESHIELD

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 Helen Quan?

Helen Quan is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Helen K Quan MD Ps Inc General Practice Physician · Seattle, WA NPI 1245338789

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-15.