2026 NPPES data Emergency Medicine Physician NPI 1083889406
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AARON ANDERSEN

Emergency Medicine Physician in MADISON, Wisconsin. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
325
Medicare Part D claims · 223 beneficiaries · Emergency Medicine Physician avg: 352
What the federal data reveals: AARON ANDERSEN is a Emergency Medicine Physician ([object Object]) practicing in MADISON, Wisconsin with a Medicare Part D prescribing footprint of 325 claims across 223 beneficiaries .

What the federal data shows

AARON ANDERSEN filed 325 Medicare Part D claims in 2023 as a Emergency Medicine Physician in MADISON, Wisconsin.

325
Part D claims, 2023
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.

Board certification likely (heuristic — not verified)

AARON ANDERSEN practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

AARON ANDERSEN at a glance

Quality data not reported

NPI registry status

Active

Issued 04/27/2008

NPI 1083889406

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

325 8% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Wisconsin

How Emergency Medicine Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Emergency Medicine Physician share within Wisconsin

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

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 ANDERSEN is a Emergency Medicine Physician provider practicing in MADISON, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1083889406. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

AARON ANDERSEN appears in the CMS NPPES registry as a Emergency Medicine Physician provider at 600 HIGHLAND AVE, MADISON, WI, 53792, with a listed phone of (608) 262-2398. NPI 1083889406 was issued on 04/27/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANDERSEN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 325 prescription claims written by this provider, covering 223 Medicare beneficiaries and totaling roughly $6K in drug spend, with an opioid prescribing rate of 15.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

600 HIGHLAND AVE
MADISON, WI 53792

Provider Details

NPI 1083889406
Specialty Emergency Medicine Physician
Gender Male
NPI Issued 04/27/2008

Hospital and facility affiliations

Facilities where AARON ANDERSEN 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.

EMERGENCY MEDICAL ASSOCIATES LLP
WAUKESHA, WI

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.

325
Total Claims
$6K
Total Drug Cost
223
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
330
Total Day Supply
3,646
Generic Drug Cost
$3K
Opioid Claims
51 (15.7% rate)
Antibiotic Claims
103

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.60
Gender Split
64% female / 36% male
Age Distribution
<65: 30, 65-74: 68, 75-84: 77, 85+: 48

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
35
Cefuroxime
Cefuroxime Axetil
31
Doxycycline Hyclate
31
Prednisone
29
Ondansetron Odt
Ondansetron
20
Methylprednisolone
18
Cefdinir
16
Amlodipine Besylate
11
Methocarbamol
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Emergency Medicine Physician Overview

How AARON ANDERSEN fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

AARON ANDERSEN's 325 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is AARON ANDERSEN's specialty?
AARON ANDERSEN specializes in Emergency Medicine Physician and practices in MADISON, Wisconsin.
How much does AARON ANDERSEN prescribe under Medicare Part D?
In 2023, AARON ANDERSEN wrote 325 Medicare Part D claims totaling $6K in drug costs for 223 beneficiaries.
Where is AARON ANDERSEN located?
AARON ANDERSEN is located at 600 HIGHLAND AVE, MADISON, WI, 53792. Phone: (608) 262-2398.
What is AARON ANDERSEN's NPI number?
AARON ANDERSEN's National Provider Identifier (NPI) is 1083889406, issued on 04/27/2008.
Does AARON ANDERSEN prescribe opioids?
Yes, AARON ANDERSEN had 51 opioid claims in 2023 with an opioid prescribing rate of 15.7%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does AARON ANDERSEN prescribe most often?
Based on 2023 Medicare Part D data, AARON ANDERSEN's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Cefuroxime, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AARON ANDERSEN accept Medicare?
AARON ANDERSEN appears in CMS Medicare data with 325 Part D claims and 223 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AARON ANDERSEN's credentials?
AARON ANDERSEN's NPI is 1083889406. 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

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