NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1255642294 DO
Verify on CMS → Aaron Pinion, DO
Internal Medicine Physician in Elk River, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, 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
542
Medicare Part D claims · 125 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
71%
generic claims · 29% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.4/100
▲ 9 pts above national avg 83.1 · Exceptional
Industry payments
$552.63
27 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Aaron Pinion, DO reported a CMS MIPS final score of 92.4/100 - above the 83.1 national average - and filed 542 Medicare Part D claims in 2023.
- 92.4/100
- MIPS score · +9 vs avg
- 542
- Part D claims, 2023
- 71%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Aaron Pinion, DO's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
92 Top 32% higher than 68% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Aaron Pinion, DO sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Aaron Pinion, DO writes more Part D claims than 45% of them and scores higher on MIPS quality than 69% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Aaron Pinion, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Aaron Pinion, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Aaron Pinion, DO?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
542 80% vs specialty avg
MIPS final score
92.4/100 9.3 pts vs avg
Specialty distribution in Minnesota
How Internal Medicine Physician compares to other specialties among Minnesota providers
Medicare quality performance, MIPS
Aaron Pinion, DO's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 92.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 92.4/100 vs national avg 83.1
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).
Aaron Pinion, DO appears in the CMS NPPES registry as an Internal Medicine Physician provider holding DO credentials at 290 MAIN ST NW, Elk River, MN, 55330, with a listed phone of (763) 241-5800. NPI 1255642294 was issued on 06/24/2010.
Medicare Part D records for calendar year 2023 show 542 prescription claims written by this provider, covering 125 Medicare beneficiaries and totaling roughly $144K in drug spend, split 29% brand-name and 71% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.4/100 for the 2023 performance year (Quality 84.8), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1255642294 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 06/24/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
92.3955
Final Score
Avg: 83.1
84.7911
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Aaron Pinion, DO 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.
Bryan Hospital Kearney
Kearney, NE
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 Aaron Pinion, DO. Source: openpaymentsdata.cms.gov.
Total received
$553
Largest payer
GENZYME CORPORATION
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 · Above average
Aaron Pinion, DO - brand share 29.0%
Internal Medicine Physician average
29% brand-name claims vs 71% generic, on 542 2023 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 2023.
542
Total Claims
$144K
Total Drug Cost
125
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 666
- Total Day Supply
- 17,770
- Brand vs Generic
- 29% brand / 71% generic
- Brand Drug Cost
- $129K
- Generic Drug Cost
- $15K
- Antibiotic Claims
- 15
Patient Demographics
- Average Patient Age
- 69.4 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Aaron Pinion, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ipratropium Bromide
Ipratropium Bromide
79 claims
- Azelastine Hcl
Azelastine Hcl
75 claims
- Trelegy Ellipta
Trelegy Ellipta
65 claims
- Fluticasone Propio…
Fluticasone Propionate
41 claims
- Montelukast Sodium
Montelukast Sodium
37 claims
- Famotidine 24
Famotidine
24 claims
- Symbicort 21
Symbicort
21 claims
- Albuterol Sulfate … 17
Albuterol Sulfate Hfa
17 claims
| Drug | Claims |
|---|---|
| Ipratropium Bromide | 79 |
| Azelastine Hcl | 75 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 65 |
| Fluticasone Propionate | 41 |
| Montelukast Sodium | 37 |
| Famotidine | 24 |
| Symbicort Budesonide/Formoterol Fumarate | 21 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 17 |
| Epinephrine | 16 |
| Triamcinolone Acetonide | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Aaron Pinion, DO fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Aaron Pinion, DO's 542 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Pinion.
Dr. Christopher Aakre
MD
Rochester, MN
Dr. Karen Aarestad
MD
Brainerd, MN
Dr. Peter Aas
MD
Duluth, MN
Dr. Saud Abaalkhail
M.B.,B.S.
Minneapolis, MN
Dr. Mohamad Abbas
M.D.
Saint Paul, MN
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Aaron Pinion, DO's specialty? ▼
Aaron Pinion, DO specializes in Internal Medicine Physician and practices in Elk River, Minnesota. Credentials: DO.
How much does Aaron Pinion, DO prescribe under Medicare Part D? ▼
In 2023, Aaron Pinion, DO wrote 542 Medicare Part D claims totaling $144K in drug costs for 125 beneficiaries.
What is Aaron Pinion, DO's Medicare quality score? ▼
Aaron Pinion, DO has a CMS MIPS Final Score of 92.4/100 (Quality: 84.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Aaron Pinion, DO located? ▼
Aaron Pinion, DO is located at 290 MAIN ST NW, Elk River, MN, 55330. Phone: (763) 241-5800.
What is Aaron Pinion, DO's NPI number? ▼
Aaron Pinion, DO's National Provider Identifier (NPI) is 1255642294, issued on 06/24/2010.
Does Aaron Pinion, DO prescribe more brand-name or generic drugs? ▼
Aaron Pinion, DO's prescribing is 29% brand-name and 71% generic drugs by claim count, with $129K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Aaron Pinion, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Aaron Pinion, DO's most frequently prescribed drugs include Ipratropium Bromide, Azelastine Hcl, Trelegy Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aaron Pinion, DO accept Medicare? ▼
Aaron Pinion, DO appears in CMS Medicare data with 542 Part D claims and 125 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Pinion, DO's credentials? ▼
Aaron Pinion, DO's NPI is 1255642294 with credentials DO. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.