NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1437523305 PA-C
Verify on CMS → Alexander Chaloux, PA-C
Physician Assistant in Bozeman, 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 150,974 in Physician Assistant, 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
724
Medicare Part D claims · 136 beneficiaries · Physician Assistant avg: 790
Industry payments
$223.31
11 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Alexander Chaloux, PA-C filed 724 Medicare Part D claims in 2023 as a Physician Assistant in Bozeman, Montana.
- 724
- Part D claims, 2023
- $223.31
- industry payments (Sunshine Act)
- ≥71st
- 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.
CMS NPPES provider registry desk
NPI 1437523305 · Physician Assistant
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1437523305
- ENUM-MID 2015
- TAX-MEGA 151K Physician Assistant
- RX-LIGHT 724
- BOOK-LIGHT 733 in Montana
- PHOTO-ENUM Lynn Meadows · 2015
Alexander Chaloux, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
724 ≥ 71st percentile 71% of 1,370,886 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 · 2023
What does the federal data show about Alexander Chaloux, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
724 8% vs specialty avg
Specialty distribution in Montana
How Physician Assistant 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 Physician Assistant. 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 | 1437523305 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 11/16/2015 |
Hospital and facility affiliations
Facilities where Alexander Chaloux, PA-C 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.
Bozeman Health Deaconess Hospital
★★★★☆ 4/5
Bozeman, MT
Acute Care Hospitals
CMS CCN: 270057
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 Alexander Chaloux, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$223
Largest payer
ABBVIE INC.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
724
Total Claims
$55K
Total Drug Cost
136
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,499
- Total Day Supply
- 42,367
- Generic Drug Cost
- $13K
- Opioid Claims
- 16 (2.2% rate)
- Antibiotic Claims
- 28
Patient Demographics
- Average Patient Age
- 71.0 years
- Avg HCC Risk Score
- 0.83
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alexander Chaloux, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
64 claims
- Levothyroxine Sodium
Levothyroxine Sodium
43 claims
- Eliquis
Eliquis
27 claims
- Lisinopril
Lisinopril
26 claims
- Amlodipine Besylate 25
Amlodipine Besylate
25 claims
- Omeprazole 24
Omeprazole
24 claims
- Gabapentin 21
Gabapentin
21 claims
- Losartan Potassium 21
Losartan Potassium
21 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 64 |
| Levothyroxine Sodium | 43 |
| Eliquis Apixaban | 27 |
| Lisinopril | 26 |
| Amlodipine Besylate | 25 |
| Omeprazole | 24 |
| Gabapentin | 21 |
| Losartan Potassium | 21 |
| Alendronate Sodium | 17 |
| Bupropion Xl Bupropion Hcl | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Alexander Chaloux, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Alexander Chaloux, PA-C's 724 claims are below the specialty average of 790.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Chaloux, both outside Montana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Montana
Other clinicians with the same primary specialty enrolled in Montana, drawn from the same CMS NPPES roster as Chaloux.
One of 733 Physician Assistant providers enrolled in Montana, 5 are shown here.
Dr. Patrick Alduenda
PA-C
Helena, MT
Dr. Jesse Alfiero
PA-C
Ronan, MT
Dr. Robert Alfiero
PA-C
Ronan, MT
Dr. Sarah Alke
PA-C
Bozeman, MT
Dr. Janel Allison-Shamblin
PA-C
Bozeman, MT
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Alexander Chaloux, PA-C's specialty? ▼
Alexander Chaloux, PA-C specializes in Physician Assistant and practices in Bozeman, Montana. Credentials: PA-C.
How much does Alexander Chaloux, PA-C prescribe under Medicare Part D? ▼
In 2023, Alexander Chaloux, PA-C wrote 724 Medicare Part D claims totaling $55K in drug costs for 136 beneficiaries.
Where is Alexander Chaloux, PA-C located? ▼
Alexander Chaloux, PA-C is located at 935 HIGHLAND BLVD STE 2200, Bozeman, MT, 59715. Phone: (406) 414-5700.
What is Alexander Chaloux, PA-C's NPI number? ▼
Alexander Chaloux, PA-C's National Provider Identifier (NPI) is 1437523305, issued on 11/16/2015.
Does Alexander Chaloux, PA-C prescribe opioids? ▼
Yes, Alexander Chaloux, PA-C had 16 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Alexander Chaloux, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Alexander Chaloux, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alexander Chaloux, PA-C accept Medicare? ▼
Alexander Chaloux, PA-C appears in CMS Medicare data with 724 Part D claims and 136 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alexander Chaloux, PA-C's credentials? ▼
Alexander Chaloux, PA-C's NPI is 1437523305 with credentials PA-C. 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 (2023). 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 April 2026 (NPPES) / 2023 (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 May 2026.