2026 NPPES data Emergency Medicine Physician NPI 1346275344 MD
Verify on CMS →

WILLIAM BENN, MD

Emergency Medicine Physician in GREEN BAY, 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
1K
Medicare Part D claims · 238 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
94.6154/100
▲ 12 pts above national avg 83.1 · [object Object]

What the federal data shows

WILLIAM BENN, MD reported a CMS MIPS final score of 94.6154/100 — above the 83.1 national average — and filed 1,300 Medicare Part D claims in 2023.

94.6154/100
MIPS score · +12 vs avg
1K
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.

WILLIAM BENN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

95 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

WILLIAM BENN, MD 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 WILLIAM BENN, MD?

High performer (top quartile)

NPI registry status

Active

Issued 07/11/2006

NPI 1346275344

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

1,300 269% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

94.6154/100 11.5154% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

WILLIAM BENN, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
94.6154/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 94.6154/100 vs national avg 83.1

0%100%National avg83%94.6%
MIPS final score (Emergency Medicine Physician) — 94.6154/100 vs national avg 83.1

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).

WILLIAM BENN, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 2502 S ASHLAND AVE, GREEN BAY, WI, 54304, with a listed phone of (920) 496-4700. NPI 1346275344 was issued on 07/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BENN 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 1,300 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $105K in drug spend. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.6154/100 for the 2023 performance year (Quality 85.1795), compared with the national average of 83.1.

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

2502 S ASHLAND AVE
GREEN BAY, WI 54304

Provider Details

NPI 1346275344
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/11/2006

CMS Quality Score (MIPS)

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

94.6154
Final Score
Avg: 83.1
85.1795
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where WILLIAM BENN, 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.

ST VINCENT HOSPITAL-HOSPITAL SISTERS-THIRD ORDER OF ST FRANCIS
GREEN BAY, 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.

1,300
Total Claims
$105K
Total Drug Cost
238
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,893
Total Day Supply
85,056
Generic Drug Cost
$28K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.19
Gender Split
39% female / 61% male
Age Distribution
<65: 26, 65-74: 126, 75-84: 64, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What WILLIAM BENN, 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
95
Meloxicam
84
Omeprazole
54
Metformin Hcl
49
Simvastatin
41
Tamsulosin Hcl
36
Levothyroxine Sodium
34
Amlodipine Besylate
33
Fluticasone Propionate
29
Lisinopril
28

* 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 WILLIAM BENN, MD 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

WILLIAM BENN, MD's 1,300 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 BENN.

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

Frequently Asked Questions

What is WILLIAM BENN, MD's specialty?
WILLIAM BENN, MD specializes in Emergency Medicine Physician and practices in GREEN BAY, Wisconsin. Credentials: MD.
How much does WILLIAM BENN, MD prescribe under Medicare Part D?
In 2023, WILLIAM BENN, MD wrote 1,300 Medicare Part D claims totaling $105K in drug costs for 238 beneficiaries.
What is WILLIAM BENN, MD's Medicare quality score?
WILLIAM BENN, MD has a CMS MIPS Final Score of 94.6154/100 (Quality: 85.1795). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WILLIAM BENN, MD located?
WILLIAM BENN, MD is located at 2502 S ASHLAND AVE, GREEN BAY, WI, 54304. Phone: (920) 496-4700.
What is WILLIAM BENN, MD's NPI number?
WILLIAM BENN, MD's National Provider Identifier (NPI) is 1346275344, issued on 07/11/2006.
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 WILLIAM BENN, MD prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM BENN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Meloxicam, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM BENN, MD accept Medicare?
WILLIAM BENN, MD appears in CMS Medicare data with 1,300 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM BENN, MD's credentials?
WILLIAM BENN, MD's NPI is 1346275344 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

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