Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew Altheide, PA-C

Physician Assistant in Riverside, CA · enumerated 2024 · practices at Central Occupational Medicine Providers Ontario Inc.

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

National Provider Identifier

1659130490

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew Altheide

Credential PA-C

Sex Male

Practice address 4300 Central Ave, Riverside, CA, 92506

Phone (951) 222-2208

Enumeration date Mar 14, 2024

Last updated in NPPES Nov 30, 2025

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA64114 (CA) Secondary

146N00000X Basic Emergency Medical Technician Emergency Medical Service Providers · License E018059 (CA) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA64114 (CA) 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

How do I verify Matthew Altheide's NPI record?

Cross-check NPI 1659130490 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659130490 active?

Yes, as of the latest NPPES snapshot, NPI 1659130490 is active (record last updated 2025-11-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-30.