Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chelsea Elizabeth Trierweiler, FNP

Family Nurse Practitioner in Castle Pines, CO · enumerated 2020.

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

National Provider Identifier

1679104483

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Registry record

Entity type Individual (Type 1)

Name Chelsea Elizabeth Trierweiler

Credential FNP

Sex Female

Practice address 7280 Lagae Rd Ste J, Castle Pines, CO, 80108

Phone (303) 814-0505

Fax (303) 814-6491

Enumeration date Jan 30, 2020

Last updated in NPPES Jan 5, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APN.0995210-NP (CO) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F11190077 (CO) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Chelsea Trierweiler practice?

The practice location on file with NPPES is in Castle Pines, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Chelsea Trierweiler?

The National Provider Identifier (NPI) for Chelsea Trierweiler is 1679104483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-05.