Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Abigail Carrie Holzwarth, DNP, APRN, FNP-BC

Nurse Practitioner in Billings, MT · enumerated 2022.

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

National Provider Identifier

1104544576

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Registry record

Entity type Individual (Type 1)

Name Abigail Carrie Holzwarth

Credential DNP, APRN, FNP-BC

Sex Female

Practice address 801 N 29th St, Billings, MT, 59101

Phone (406) 238-2500

Enumeration date Aug 22, 2022

Last updated in NPPES Jan 7, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 198020 (MT) Primary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 198020 (MT) 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

What is the NPI number for Abigail Holzwarth?

The National Provider Identifier (NPI) for Abigail Holzwarth is 1104544576, a Type 1 (individual) record in the CMS NPPES registry.

Where does Abigail Holzwarth practice?

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

Other providers at this practice address

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Linda Dupree Physician Assistant · Billings, MT NPI 1073516167 Luis Alvarez Clinical Cardiac Electrophysiology Physician · Billings, MT NPI 1417951922 Dennis Obrien Neurology Physician · Billings, MT NPI 1811981699 Jodee Macdonald Etchart Medical Physician Assistant · Billings, MT NPI 1568456044 Brooke Yates Physician Assistant · Billings, MT NPI 1215921838 Emily Colson Family Medicine Physician · Billings, MT NPI 1952397929 Richard Leblond Internal Medicine Physician · Billings, MT NPI 1184612715 Lawrence Zyskowski Rheumatology Physician · Billings, MT NPI 1841289410

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