Abigail Carrie Holzwarth, DNP, APRN, FNP-BC
Nurse Practitioner · Billings, MT
Abigail Carrie Holzwarth, DNP, APRN, FNP-BC is a nurse practitioner with a practice address in Billings, Montana, and NPI 1104544576, issued on Aug 22, 2022. Check the license (Montana 198020, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Abigail Carrie Holzwarth
- Credential
- DNP, APRN, FNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 198020 MT
Self-reported in NPPES; status is on the state search - Practice location
- 801 N 29TH St, Billings, MT 59101
- Phone
- (406) 238-2500
- Enumerated
- Aug 22, 2022
- Record last updated
- Jan 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20230112002614); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 287 in Montana → Look up another NPI →
Also registered at 801 N 29TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Abigail Carrie Holzwarth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 198020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average nurse practitioner in 2024
1,147 Medicare Part D claims for 210 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Losartan Potassium88 claims
- Amlodipine Besylate86 claims
- Metoprolol Succinate52 claims
- Carvedilol48 claims
- Calcitriol47 claims
- Furosemide45 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Billings ClinicCody, WY
- Sheridan Memorial Hospital AssociationPlentywood, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Abigail Carrie Holzwarth among 287 nurse practitioner records in Montana
Abigail Carrie Holzwarth, DNP, APRN, FNP-BC is one of 287 nurse practitioner records with a practice address in Montana. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 75% of them.
- NPI issued2022 · 75% of these records are older, 18% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2022 · median 2019 among the 185 with a school on file
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
72 nurse practitioner records list a practice address in Billings
They are 72 of the 4,035 NPPES records with a practice address in Billings, and 287 nurse practitioner records in Montana.
All 287 in Montana → Every provider in Billings → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Valerie Caton, APRN(FNP-C)Billings, MT 591011104846658
- Lynette Cross, NPBillings, MT 591011295773182
- Brenda Gilmore, NPBillings, MT 591011144253386
- Lori Hartford, NPBillings, MT 591011194985572
- Yvonne Kammerzell, NPBillings, MT 591011942301015
- Monica Maher, NPBillings, MT 591011548314107
- Sheryl Malinowski, FNPBillings, MT 591011790999878
- George Murray, NPBillings, MT 591011154347854
Common questions
What is Abigail Carrie Holzwarth, DNP, APRN, FNP-BC's NPI number?
Abigail Carrie Holzwarth, DNP, APRN, FNP-BC's National Provider Identifier (NPI) is 1104544576, issued on Aug 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Abigail Carrie Holzwarth, DNP, APRN, FNP-BC located?
The NPPES record lists a practice address at 801 N 29TH St, Billings, MT, 59101. Phone: (406) 238-2500. Providers update this record themselves, so call before visiting.
How can I verify Abigail Carrie Holzwarth, DNP, APRN, FNP-BC's license?
NPPES lists Montana license number 198020, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.
How much does Abigail Carrie Holzwarth, DNP, APRN, FNP-BC prescribe under Medicare Part D?
In 2024, Abigail Carrie Holzwarth, DNP, APRN, FNP-BC had 1,147 Medicare Part D claims for 210 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Abigail Carrie Holzwarth, DNP, APRN, FNP-BC's MIPS final score?
The 2023 MIPS final score is 94.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.