2026 NPPES data Emergency Medicine Physician NPI 1134173875 MD
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Subhashish Agarwal, MD

Emergency Medicine Physician in Brookfield, Wisconsin.

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
3K
Medicare Part D claims · 442 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$50.1K
128 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Subhashish Agarwal, MD filed 3,018 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Brookfield, Wisconsin, prescribing 80% generic.

3K
Part D claims, 2023
80%
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.

Subhashish Agarwal, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

3,018 Top 11% higher than 89% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Subhashish Agarwal, MD 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).

What does the federal data show about Subhashish Agarwal, MD?

Quality data not reported

NPI registry status

Active

Issued 05/19/2006

NPI 1134173875

Primary specialty

Emergency Medicine Physician

High-volume

64,463 US NPIs in this specialty

Medicare Part D claims

3,018 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
Physical Therapist - 5.6%Physical Therapist5.6%Pharmacist - 4.8%Pharmacist4.8%Registered Nurse - 4.5%Registered Nurse4.5%Professional Counselor - 3.3%Professional Counselor3.3%Student in an Organized Health Care Education/Training Program - 3.3%Student in an Organized Health Care Education/Training Program3.3%Family Medicine Physician - 3.2%Family Medicine Physician3.2%Emergency Medicine Physician - 1.2%Emergency Medicine Physician1.2%
Largest specialties in Wisconsin (% of in-state 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 Emergency Medicine Physician. 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).

Subhashish Agarwal, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 16650 W BLUEMOUND RD STE 200, Brookfield, WI, 53005, with a listed phone of (262) 827-9200. NPI 1134173875 was issued on 05/19/2006.

Medicare Part D records for calendar year 2023 show 3,018 prescription claims written by this provider, covering 442 Medicare beneficiaries and totaling roughly $742K in drug spend, split 20% brand-name and 80% generic by claim count.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 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

16650 W BLUEMOUND RD STE 200
Brookfield, WI 53005

Provider Details

NPI 1134173875
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 05/19/2006

Hospital and facility affiliations

Facilities where Subhashish Agarwal, MD 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.

Aurora Medical Group, Inc.
Elkhorn, 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).

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 Subhashish Agarwal, MD. Source: openpaymentsdata.cms.gov.

Total received

$50.1K

Largest payer

Janssen Pharmaceuticals, 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.

Brand vs generic prescribing mix · Typical

Subhashish Agarwal, MD - brand share 20.0%
Emergency Medicine Physician average

20% brand-name claims vs 80% generic, on 3,018 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.

3,018
Total Claims
$742K
Total Drug Cost
442
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,074
Total Day Supply
240,181
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$683K
Generic Drug Cost
$59K

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.69
Gender Split
44% female / 56% male
Age Distribution
<65: 21, 65-74: 189, 75-84: 163, 85+: 69

Top Prescribed Drugs (Medicare Part D)

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

What Subhashish Agarwal, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
413
Metoprolol Succinate
386
Eliquis
Apixaban
141
Furosemide
130
Clopidogrel
Clopidogrel Bisulfate
127
Amlodipine Besylate
124
Losartan Potassium
116
Lisinopril
115
Xarelto
Rivaroxaban
114
Rosuvastatin Calcium
104

* 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 Subhashish Agarwal, MD 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

Subhashish Agarwal, MD's 3,018 claims are above 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 Agarwal.

Compare Emergency 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Emergency 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.

Frequently Asked Questions

What is Subhashish Agarwal, MD's specialty?
Subhashish Agarwal, MD specializes in Emergency Medicine Physician and practices in Brookfield, Wisconsin. Credentials: MD.
How much does Subhashish Agarwal, MD prescribe under Medicare Part D?
In 2023, Subhashish Agarwal, MD wrote 3,018 Medicare Part D claims totaling $742K in drug costs for 442 beneficiaries.
Where is Subhashish Agarwal, MD located?
Subhashish Agarwal, MD is located at 16650 W BLUEMOUND RD STE 200, Brookfield, WI, 53005. Phone: (262) 827-9200.
What is Subhashish Agarwal, MD's NPI number?
Subhashish Agarwal, MD's National Provider Identifier (NPI) is 1134173875, issued on 05/19/2006.
Does Subhashish Agarwal, MD prescribe more brand-name or generic drugs?
Subhashish Agarwal, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $683K in brand drug costs.
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.
What drugs does Subhashish Agarwal, MD prescribe most often?
Based on 2023 Medicare Part D data, Subhashish Agarwal, MD's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Subhashish Agarwal, MD accept Medicare?
Subhashish Agarwal, MD appears in CMS Medicare data with 3,018 Part D claims and 442 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Subhashish Agarwal, MD's credentials?
Subhashish Agarwal, MD's NPI is 1134173875 with credentials MD. 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

Compiled from official public sources by the PlainDoctor editorial team.

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.