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

Chang-I Wu

Public Health & General Preventive Medicine Physician in Arlington, VA · enumerated 2018.

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

National Provider Identifier

1629546379

Verified

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Registry record

Entity type Individual (Type 1)

Name Chang-I Wu

Sex Male

Practice address Arlington, VA, 22209

Phone (585) 329-3397

Enumeration date Nov 9, 2018

Last updated in NPPES Nov 9, 2018

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

Taxonomy & licenses

2083C0008X Clinical Informatics Physician Allopathic & Osteopathic Physicians · License 261717 (NY) Secondary

2083P0901X Public Health & General Preventive Medicine Physician Allopathic & Osteopathic Physicians · License 261717 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1629546379 active?

Yes, as of the latest NPPES snapshot, NPI 1629546379 is active (record last updated 2018-11-09).

How do I verify Chang-I Wu's NPI record?

Cross-check NPI 1629546379 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-09.