Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William Chau Dc A Chiropractic Corp

Chiropractor in Oakland, CA · enumerated 2007 · authorized official William Wing Hon Chau, Owner.

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

National Provider Identifier

1902019557

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Registry record

Entity type Organization (Type 2)

Legal business name William Chau Dc A Chiropractic Corp

Practice address 2710 Telegraph Ave, Suite 240, Oakland, CA, 94612

Phone (510) 839-0590

Fax (415) 752-9993

Enumeration date May 8, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License 15779 (CA) Primary

Authorized official

Name William Wing Hon Chau

Title Owner

Phone (510) 839-0590

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.

Where is William Chau Dc A Chiropractic Corp located?

The practice location on file with NPPES is in Oakland, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.