Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Trena Helen Rathjen

Behavior Technician in Fremont, CA · enumerated 2024.

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

National Provider Identifier

1104642040

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Registry record

Entity type Individual (Type 1)

Name Trena Helen Rathjen

Sex Female

Practice address 39180 Liberty St Suite 205, Fremont, Ca 94538, Fremont, CA, 94538

Phone (510) 439-0657

Fax (510) 439-0658

Enumeration date Nov 25, 2024

Last updated in NPPES Nov 25, 2024

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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.

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Frequently asked questions

How do I verify Trena Rathjen's NPI record?

Cross-check NPI 1104642040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104642040 active?

Yes, as of the latest NPPES snapshot, NPI 1104642040 is active (record last updated 2024-11-25).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-25.