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

Mr. Joshua Williams, M.S. ATC

Athletic Trainer in Seattle, WA · enumerated 2015.

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

National Provider Identifier

1851787576

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Registry record

Entity type Individual (Type 1)

Name Mr. Joshua Williams

Credential M.S. ATC

Sex Male

Practice address Seattle, WA, 98109

Phone (253) 720-7422

Enumeration date Apr 9, 2015

Last updated in NPPES Apr 9, 2015

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

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License A160416768 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Joshua Williams?

The National Provider Identifier (NPI) for Joshua Williams is 1851787576, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joshua Williams practice?

The practice location on file with NPPES is in Seattle, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-09.