Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Sean S Tsang, C.A., L.AC.

Acupuncturist in Mequon, WI · enumerated 2016.

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

National Provider Identifier

1629437256

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Registry record

Entity type Individual (Type 1)

Name Mr. Sean S Tsang

Credential C.A., L.AC.

Sex Male

Practice address Mequon, WI, 53092

Phone (262) 821-2825

Enumeration date Feb 10, 2016

Last updated in NPPES Feb 10, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Sean Tsang's NPI record?

Cross-check NPI 1629437256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1629437256 active?

Yes, as of the latest NPPES snapshot, NPI 1629437256 is active (record last updated 2016-02-10).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-10.