Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Colten Peter Thewis, FNP

Family Nurse Practitioner in Ashland, WI · enumerated 2022.

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

National Provider Identifier

1457096810

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Registry record

Entity type Individual (Type 1)

Name Colten Peter Thewis

Credential FNP

Sex Male

Practice address 1615 Maple Ln, Ashland, WI, 54806

Phone (715) 685-5500

Enumeration date Apr 30, 2022

Last updated in NPPES May 5, 2022

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 11927-33 (WI) 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

What is the NPI number for Colten Thewis?

The National Provider Identifier (NPI) for Colten Thewis is 1457096810, a Type 1 (individual) record in the CMS NPPES registry.

Where does Colten Thewis practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-05.