Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kellsey Mary Fellbaum, DNP, FNP-BC

Family Nurse Practitioner in Ladysmith, WI · enumerated 2020.

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

National Provider Identifier

1811584147

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Registry record

Entity type Individual (Type 1)

Name Kellsey Mary Fellbaum

Credential DNP, FNP-BC

Sex Female

Practice address 1200 Port Arthur Rd, Ladysmith, WI, 54848

Phone (715) 532-5561

Enumeration date Dec 21, 2020

Last updated in NPPES Dec 10, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 10426 (WI) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 10426 (WI) Secondary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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 Kellsey Fellbaum practice?

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

What is the NPI number for Kellsey Fellbaum?

The National Provider Identifier (NPI) for Kellsey Fellbaum is 1811584147, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-10.