ABIGAIL CARRIE HOLZWARTH DNP, APRN, FNP-BC
NPI 1104544576
Nurse Practitioner in Billings, MT
About Abigail Carrie Holzwarth Dnp, Aprn, Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ABIGAIL CARRIE HOLZWARTH DNP, APRN, FNP-BC (NPI 1104544576) is an individual nurse practitioner in Billings, Montana, licensed in Montana (198020) and active in the NPI registry since August 2022. She is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Abigail Carrie Holzwarth Dnp, Aprn, Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Billings Clinic
Acute Care Hospitals · Billings, MTGlendive Medical Center
Critical Access Hospitals · Glendive, MTSheridan Memorial Hospital
Acute Care Hospitals · Sheridan, WYNorth Big Horn Hospital District
Critical Access Hospitals · Lovell, WYPowell Valley Hospital
Critical Access Hospitals · Powell, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BILLINGS, MT 59101
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Abigail Holzwarth's NPI number?
The NPI number for Abigail Holzwarth is 1104544576. It was assigned to this individual provider in the NPPES registry on August 22, 2022.
Where is Abigail Holzwarth located?
Abigail Holzwarth practices at 801 N 29th St, Billings, MT 59101. The listed phone number is (406) 238-2500.
What is Abigail Holzwarth's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Abigail Holzwarth enrolled in Medicare?
Yes. Abigail Holzwarth is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Abigail Holzwarth accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Providence Health Plan list Abigail Holzwarth as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Abigail Holzwarth affiliated with any hospitals?
According to CMS data, Abigail Holzwarth is affiliated with Billings Clinic, Glendive Medical Center, Sheridan Memorial Hospital, North Big Horn Hospital District and Powell Valley Hospital.
When was this NPI record last updated?
The NPPES record for Abigail Holzwarth was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Abigail Carrie Holzwarth, DNP, APRN, FNP-BC · NPI 1104544576
Nurse Practitioner physician in Billings, Montana. Individual provider, active in the CMS NPPES registry since August 22, 2022.
## Identity
- **NPI:** 1104544576 (Entity type: Individual)
- **Enumerated:** August 22, 2022
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 198020 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 N 29TH ST, Billings, MT 59101-0905
- **Phone:** (406) 238-2500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** January 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1104544576) · Data from the CMS NPPES public registry.