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Sunnyside Community Hospital Association

Occupational Medicine Clinic/Center in Toppenish, WA · enumerated 2017 · authorized official Mathew Mathiesen, Cfo.

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

National Provider Identifier

1134648546

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Registry record

Entity type Organization (Type 2)
Legal business name Sunnyside Community Hospital Association
Other name <Unavail>
Practice address 516 W 4th Ave, Toppenish, WA, 98948
Phone (509) 865-1555
Enumeration date Sep 18, 2017
Last updated in NPPES Oct 10, 2024

Taxonomy & classification

261QX0100X Occupational Medicine Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Mathew Mathiesen
Title Cfo
Phone (509) 837-1356

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

What is the NPI number for Sunnyside Community Hospital Association?
The NPI for Sunnyside Community Hospital Association is 1134648546, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Sunnyside Community Hospital Association?
NPPES lists Mathew Mathiesen (Cfo) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-10.