Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathy Wu, RDH

Dental Hygienist in Boston, MA · enumerated 2014.

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

National Provider Identifier

1639595796

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Registry record

Entity type Individual (Type 1)

Name Kathy Wu

Credential RDH

Sex Female

Practice address 145 South St, Boston, MA, 02111

Phone (617) 521-6760

Enumeration date Mar 13, 2014

Last updated in NPPES Sep 3, 2014

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers Secondary

124Q00000X Dental Hygienist Dental Providers · License DH88187 (MA) Primary

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

How do I verify Kathy Wu's NPI record?

Cross-check NPI 1639595796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639595796 active?

Yes, as of the latest NPPES snapshot, NPI 1639595796 is active (record last updated 2014-09-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-03.