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Parker Trefz, OT

Occupational Therapist in Modesto, CA · enumerated 2021.

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

National Provider Identifier

1457921256

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Registry record

Entity type Individual (Type 1)
Name Parker Trefz
Credential OT
Sex Male
Practice address 4660 Spyres Way, Modesto, CA, 95356
Phone (209) 578-3290
Fax (209) 550-4944
Enumeration date Jun 25, 2021
Last updated in NPPES Jun 25, 2021

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT21248 (CA) Primary
OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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

How do I verify Parker Trefz's NPI record?
Cross-check NPI 1457921256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1457921256 active?
Yes, as of the latest NPPES snapshot, NPI 1457921256 is active (record last updated 2021-06-25).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-25.