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Mario Jhoneal Siu, LMT

Massage Therapist in Seattle, WA · enumerated 2020 · practices at Chad Duvall Pllc.

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

National Provider Identifier

1417556598

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Registry record

Entity type Individual (Type 1)
Name Mario Jhoneal Siu
Credential LMT
Sex Male
Practice address 2722 Eastlake Ave E, Suite # 360, Seattle, WA, 98102
Phone (206) 324-8600
Fax (206) 322-8520
Enumeration date Oct 20, 2020
Last updated in NPPES Oct 20, 2020

Taxonomy & licenses

225700000X Massage Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1333881 (WA) 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 Mario Siu's NPI record?
Cross-check NPI 1417556598 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1417556598 active?
Yes, as of the latest NPPES snapshot, NPI 1417556598 is active (record last updated 2020-10-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-20.