Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Yu-Wen Chiu, L.AC.

Acupuncturist in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1386651719

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Registry record

Entity type Individual (Type 1)

Name Ms. Yu-Wen Chiu

Credential L.AC.

Sex Female

Practice address 1520 Stockton St, San Francisco, CA, 94133

Phone (415) 391-9686

Fax (510) 231-0398

Enumeration date Aug 1, 2006

Last updated in NPPES Apr 1, 2019

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License AC 6686 (CA) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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.

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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 Yu-Wen Chiu?

Yu-Wen Chiu is registered in NPPES with the primary taxonomy of Acupuncturist. 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 2019-04-01.