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Trenton Jon Williams, PH.D.

Psychologist in Tacoma, WA · enumerated 2007 · practices at Rainier Associates Partnership.

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

National Provider Identifier

1124164645

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Registry record

Entity type Individual (Type 1)
Name Trenton Jon Williams
Credential PH.D.
Sex Male
Practice address 5909 Orchard St W, Tacoma, WA, 98467
Phone (253) 475-6021
Fax (253) 474-1871
Enumeration date Jan 30, 2007
Last updated in NPPES Jan 23, 2009

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PY00001678 (WA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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

Where does Trenton Williams practice?
The practice location on file with NPPES is in Tacoma, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Trenton Williams?
The National Provider Identifier (NPI) for Trenton Williams is 1124164645, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-23.