2026 NPPES data Emergency Medicine Physician NPI 1447575642 D.O
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VASILIOS BOURNAS, D.O

Emergency Medicine Physician in HARTFORD, 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
227
Medicare Part D claims · 151 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
91.7411/100
▲ 9 pts above national avg 83.1 · [object Object]

What the federal data shows

VASILIOS BOURNAS, D.O reported a CMS MIPS final score of 91.7411/100 — above the 83.1 national average — and filed 227 Medicare Part D claims in 2023.

91.7411/100
MIPS score · +9 vs avg
227
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.

VASILIOS BOURNAS, D.O'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 37% higher than 63% 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)

VASILIOS BOURNAS, D.O 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 VASILIOS BOURNAS, D.O?

High performer (top quartile)

NPI registry status

Active

Issued 03/30/2010

NPI 1447575642

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

227 36% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

91.7411/100 8.641100000000009% 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

VASILIOS BOURNAS, D.O's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
91.7411/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 91.7411/100 vs national avg 83.1

0%100%National avg83%91.7%
MIPS final score (Emergency Medicine Physician) — 91.7411/100 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).

VASILIOS BOURNAS, D.O appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding D.O credentials at 1032 E SUMNER ST, HARTFORD, WI, 53027, with a listed phone of (262) 673-2300. NPI 1447575642 was issued on 03/30/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOURNAS 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 227 prescription claims written by this provider, covering 151 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 5.3%. 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 91.7411/100 for the 2023 performance year (Quality 88.9058, Cost 70.3458), 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

1032 E SUMNER ST
HARTFORD, WI 53027

Provider Details

NPI 1447575642
Specialty Emergency Medicine Physician
Credentials D.O
Gender Male
NPI Issued 03/30/2010

CMS Quality Score (MIPS)

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

91.7411
Final Score
Avg: 83.1
88.9058
Quality
70.3458
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where VASILIOS BOURNAS, D.O 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.
HARTFORD, 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.

227
Total Claims
$3K
Total Drug Cost
151
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
227
Total Day Supply
1,820
Generic Drug Cost
$2K
Opioid Claims
12 (5.3% rate)
Antibiotic Claims
102

Patient Demographics

Average Patient Age
68.1 years
Avg HCC Risk Score
1.62
Gender Split
62% female / 38% male
Age Distribution
<65: 44, 65-74: 59, 75-84: 34, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What VASILIOS BOURNAS, D.O 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
Prednisone
30
Cefdinir
22
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
20
Azithromycin
18
Cephalexin
15
Doxycycline Hyclate
13
Methylprednisolone
12

* 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 VASILIOS BOURNAS, D.O 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

VASILIOS BOURNAS, D.O's 227 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 BOURNAS.

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

Frequently Asked Questions

What is VASILIOS BOURNAS, D.O's specialty?
VASILIOS BOURNAS, D.O specializes in Emergency Medicine Physician and practices in HARTFORD, Wisconsin. Credentials: D.O.
How much does VASILIOS BOURNAS, D.O prescribe under Medicare Part D?
In 2023, VASILIOS BOURNAS, D.O wrote 227 Medicare Part D claims totaling $3K in drug costs for 151 beneficiaries.
What is VASILIOS BOURNAS, D.O's Medicare quality score?
VASILIOS BOURNAS, D.O has a CMS MIPS Final Score of 91.7411/100 (Quality: 88.9058, Cost: 70.3458). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is VASILIOS BOURNAS, D.O located?
VASILIOS BOURNAS, D.O is located at 1032 E SUMNER ST, HARTFORD, WI, 53027. Phone: (262) 673-2300.
What is VASILIOS BOURNAS, D.O's NPI number?
VASILIOS BOURNAS, D.O's National Provider Identifier (NPI) is 1447575642, issued on 03/30/2010.
Does VASILIOS BOURNAS, D.O prescribe opioids?
Yes, VASILIOS BOURNAS, D.O had 12 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
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 VASILIOS BOURNAS, D.O prescribe most often?
Based on 2023 Medicare Part D data, VASILIOS BOURNAS, D.O's most frequently prescribed drugs include Prednisone, Cefdinir, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does VASILIOS BOURNAS, D.O accept Medicare?
VASILIOS BOURNAS, D.O appears in CMS Medicare data with 227 Part D claims and 151 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify VASILIOS BOURNAS, D.O's credentials?
VASILIOS BOURNAS, D.O's NPI is 1447575642 with credentials D.O. 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