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2026 NPPES data Emergency Medicine Physician NPI 1326272014
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Aaron Eichhorn

Emergency Medicine Physician in Aurora, Colorado.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency 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
58
Medicare Part D claims · 46 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
97.6/100
▲ 14 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Aaron Eichhorn reported a CMS MIPS final score of 97.6/100 - above the 83.5 national average - and filed 58 Medicare Part D claims in 2023.

97.6/100
MIPS score · +14 vs avg
58
Part D claims, 2023
Likely
board-certified (heuristic)
≥84th
pct among measured MIPS (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 1326272014 · Emergency Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-TRACE · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1326272014
  • ENUM-MID 2009
  • TAX-MEGA 64K Emergency Medicine
  • MIPS-ELITE 97.6/100
  • RX-TRACE 58
  • BOOK-LIGHT 1,359 in Colorado
  • PHOTO-FINISH Alexandra Abangan · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Aaron Eichhorn's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

98 ≥ 84th percentile 84% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Aaron Eichhorn sits

This provider among emergency medicine physician peers

Across the 14,017 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Aaron Eichhorn writes more Part D claims than 20% of them and scores higher on MIPS quality than 83% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 88Aaron Eichhorn, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 83
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one emergency medicine physician peer from a representative sample of 60; the gold marker is Aaron Eichhorn. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Aaron Eichhorn 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 Eichhorn?

High performer (top quartile)

NPI registry status

Active

Issued 05/08/2009

NPI 1326272014

Primary specialty

Emergency Medicine Physician

High-volume

64,463 US NPIs in this specialty

Medicare Part D claims

58 84% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

97.6/100 14.1 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in Colorado

How Emergency Medicine Physician compares to other specialties among Colorado providers

Colorado providers
Behavior Technician7.8%Mental Health Counselor6.2%Physical Therapist4.2%Clinical Social Worker4.2%Professional Counselor3.7%Registered Nurse3.6%Emergency Medicine Physician0.9%
Largest specialties in Colorado (% of in-state providers)

Medicare quality performance, MIPS

Aaron Eichhorn's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
97.6/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%97.6%
MIPS final score (Emergency Medicine Physician) - 97.6/100 vs national avg 83.5
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

12605 E 16TH AVE
Aurora, CO 80045
(720) 848-0000

Provider Details

NPI 1326272014
Specialty Emergency Medicine Physician
Gender Male
NPI Issued 05/08/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.5814
Final Score
Measured-score avg: 83.5
86.5348
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Aaron Eichhorn 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.

University Physicians Incorporated
Aurora, CO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

58
Total Claims
$1K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
60
Total Day Supply
536
Generic Drug Cost
$465
Antibiotic Claims
19

Patient Demographics

Average Patient Age
68.8 years
Avg HCC Risk Score
1.65
Gender Split
57% female / 43% male
More Emergency Medicine Physician in CO → All providers in Colorado → Compare specialties →

Emergency Medicine Physician Overview

How Aaron Eichhorn fits within the Emergency Medicine Physician landscape nationally.

64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

Aaron Eichhorn's 58 claims are below the specialty average of 352.

Nationwide Emergency Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Eichhorn, both outside Colorado so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (97.6 here).

Alexandra Abangan 97.6 OH Gregory Adams 97.6 OH Amanda Aemisegger 97.6 OH Manisha Agarwala 97.6 IN

Same NPPES enumeration year (2009)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Ogadinma Obie Houston, TX Nicole Seleno Ypsilanti, MI Jeffery Zielinski Los Angeles, CA Kristen Zach Cooperstown, NY

Nearby Emergency Medicine Physician Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Eichhorn.

One of 1,359 Emergency Medicine Physician providers enrolled in Colorado, 5 are shown here.

Steven Aaronson
Denver, CO
Lauren Abbate
Aurora, CO
Dr. Jean Abbott
MD
Aurora, CO
Dr. William Abbott
M.D.
Aurora, CO
Dr. Charles Abramson
D.O.
Glenwood Springs, CO

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Aaron Eichhorn's specialty? ▼
Aaron Eichhorn specializes in Emergency Medicine Physician and practices in Aurora, Colorado.
How much does Aaron Eichhorn prescribe under Medicare Part D? ▼
In 2023, Aaron Eichhorn wrote 58 Medicare Part D claims totaling $1K in drug costs for 46 beneficiaries.
What is Aaron Eichhorn's Medicare quality score? ▼
Aaron Eichhorn has a CMS MIPS Final Score of 97.6/100 (Quality: 86.5). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Aaron Eichhorn located? ▼
Aaron Eichhorn is located at 12605 E 16TH AVE, Aurora, CO, 80045. Phone: (720) 848-0000.
What is Aaron Eichhorn's NPI number? ▼
Aaron Eichhorn's National Provider Identifier (NPI) is 1326272014, issued on 05/08/2009.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does Aaron Eichhorn accept Medicare? ▼
Aaron Eichhorn appears in CMS Medicare data with 58 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Eichhorn's credentials? ▼
Aaron Eichhorn's NPI is 1326272014. 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

Compiled from official public sources by the editorial process.

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.