Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Trillium Charter School

Local Education Agency (LEA) in Arcata, CA · enumerated 2024 · authorized official Marianne Keller, Director.

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

National Provider Identifier

1174363857

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Trillium Charter School

Practice address 1464 Spear Ave, Arcata, CA, 95521

Phone (707) 822-4721

Fax (707) 822-7054

Enumeration date May 29, 2024

Last updated in NPPES Jan 8, 2025

Taxonomy & classification

251300000X Local Education Agency (LEA) Agencies Primary

Authorized official

Name Marianne Keller

Title Director

Phone (707) 822-4721

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-01-08. Verify at npiregistry.cms.hhs.gov.

Where is Trillium Charter School located?

The practice location on file with NPPES is in Arcata, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-08.