NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1881145050 APRN
Verify on CMS → Mallory Buck, APRN
Nurse Practitioner in Missoula, Montana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
481
Medicare Part D claims · 116 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$278.58
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Mallory Buck, APRN filed 481 Medicare Part D claims in 2024 as a Nurse Practitioner in Missoula, Montana, prescribing 91% generic.
- 481
- Part D claims, 2024
- 91%
- generic prescribing
- $278.58
- industry payments (Sunshine Act)
- ≥61st
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Mallory Buck, APRN
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1881145050), first enumerated 10/21/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 481 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$278.58 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1881145050 · Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1881145050
- ENUM-MID 2016
- TAX-MEGA 90K Nurse Practitioner
- RX-LIGHT 481
- BOOK-THIN 297 in Montana
- PHOTO-ENUM Matthew Tyler · 2016
Mallory Buck, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
481 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Mallory Buck, APRN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
481 58% vs specialty avg
Specialty distribution in Montana
How Nurse Practitioner compares to other specialties among Montana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1881145050 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 10/21/2016 |
Hospital and facility affiliations
Facilities where Mallory Buck, APRN bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Providence Health And Services Mt
Missoula, MT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mallory Buck, APRN. Source: openpaymentsdata.cms.gov.
Total received
$279
Largest payer
ABIOMED
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Mallory Buck, APRN - brand share 9.0%
Nurse Practitioner average
9% brand-name claims vs 91% generic, on 481 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
481
Total Claims
$36K
Total Drug Cost
116
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 894.3
- Total Day Supply
- 25,823
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $28K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 21
Patient Demographics
- Average Patient Age
- 77.8 years
- Avg HCC Risk Score
- 1.73
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Mallory Buck, APRN prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clopidogrel
Clopidogrel
112 claims
- Metoprolol Succinate 38
Metoprolol Succinate
38 claims
- Atorvastatin Calcium 37
Atorvastatin Calcium
37 claims
- Carvedilol 36
Carvedilol
36 claims
- Spironolactone 30
Spironolactone
30 claims
- Pantoprazole Sodium 27
Pantoprazole Sodium
27 claims
- Amlodipine Besylate 24
Amlodipine Besylate
24 claims
- Eliquis 23
Eliquis
23 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 112 |
| Metoprolol Succinate | 38 |
| Atorvastatin Calcium | 37 |
| Carvedilol | 36 |
| Spironolactone | 30 |
| Pantoprazole Sodium | 27 |
| Amlodipine Besylate | 24 |
| Eliquis Apixaban | 23 |
| Furosemide | 15 |
| Losartan Potassium | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Mallory Buck, APRN fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Mallory Buck, APRN's 481 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Buck, both outside Montana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Montana
Other clinicians with the same primary specialty enrolled in Montana, drawn from the same CMS NPPES roster as Buck.
One of 297 Nurse Practitioner providers enrolled in Montana, 5 are shown here.
Melissa Abraham
NP-C
Helena, MT
Dr. Amanda Abrams-Buerkley
DNP
Havre, MT
Kara Addison
DNP-C
Helena, MT
Marni Allen
NP
Kalispell, MT
Susan Anderson
APRM
Fort Harrison, MT
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mallory Buck, APRN's specialty? ▼
Mallory Buck, APRN specializes in Nurse Practitioner and practices in Missoula, Montana. Credentials: APRN.
How much does Mallory Buck, APRN prescribe under Medicare Part D? ▼
In 2024, Mallory Buck, APRN wrote 481 Medicare Part D claims totaling $36K in drug costs for 116 beneficiaries.
Where is Mallory Buck, APRN located? ▼
Mallory Buck, APRN is located at 500 W BROADWAY ST STE 320, Missoula, MT, 59802. Phone: (406) 329-5615.
What is Mallory Buck, APRN's NPI number? ▼
Mallory Buck, APRN's National Provider Identifier (NPI) is 1881145050, issued on 10/21/2016.
Does Mallory Buck, APRN prescribe more brand-name or generic drugs? ▼
Mallory Buck, APRN's prescribing is 9% brand-name and 91% generic drugs by claim count, with $28K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Mallory Buck, APRN prescribe most often? ▼
Based on 2024 Medicare Part D data, Mallory Buck, APRN's most frequently prescribed drugs include Clopidogrel, Metoprolol Succinate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mallory Buck, APRN accept Medicare? ▼
Mallory Buck, APRN appears in CMS Medicare data with 481 Part D claims and 116 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mallory Buck, APRN's credentials? ▼
Mallory Buck, APRN's NPI is 1881145050 with credentials APRN. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.