NPI Portal NPI Lookup & Verification

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

Huailing Cathy Wu

Pharmacist in Ashburn, VA · enumerated 2020 · practices at Ronald Ray D.D.S., P.C..

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1891399598

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Registry record

Entity type Individual (Type 1)
Name Huailing Cathy Wu
Sex Female
Practice address Ashburn, VA, 20147
Phone (703) 724-7546
Fax (703) 724-7531
Enumeration date Nov 24, 2020
Last updated in NPPES Mar 22, 2021

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

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 0202206782 (VA) 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 Huailing Wu's NPI record?
Cross-check NPI 1891399598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1891399598 active?
Yes — as of the latest NPPES snapshot, NPI 1891399598 is active (record last updated 2021-03-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-22.