2026 NPPES data Legal Medicine NPI 1255390209 M.D
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ANTOINETTE HAYEK, M.D

Legal Medicine in WAUSAU, 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
9K
Medicare Part D claims · 357 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.8552/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: ANTOINETTE HAYEK, M.D is a Legal Medicine ([object Object]) practicing in WAUSAU, Wisconsin with a Medicare Part D prescribing footprint of 9K claims across 357 beneficiaries — 10% brand-name prescribing . Their CMS MIPS Final Score of 78.8552/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ANTOINETTE HAYEK, M.D reported a CMS MIPS final score of 78.8552 out of 100, below the 83.1 national average, and filed 8,966 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ANTOINETTE HAYEK, M.D at a glance

Near national average

NPI registry status

Active

Issued 03/20/2006

NPI 1255390209

Primary specialty

Legal Medicine

Niche

1,067 US NPIs in this specialty

Medicare Part D claims

8,966 218% vs specialty avg

2023 prescription claims

Specialty avg: 2,821

MIPS final score

78.8552/100 4.244799999999998% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Wisconsin

How Legal Medicine compares to other specialties among Wisconsin providers

Wisconsin providers

Legal Medicine share within Wisconsin

1. Legal Medicine42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Legal Medicine share within Wisconsin

Medicare quality performance — MIPS

ANTOINETTE HAYEK, M.D's 2023 MIPS final score plotted against the Legal Medicine national average

Near national average
MIPS Final Score
78.8552/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Legal Medicine) — 78.8552/100 vs national avg 83.1

0%100%National avg83%78.9%
MIPS final score (Legal Medicine) — 78.8552/100 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).

ANTOINETTE HAYEK, M.D is a Legal Medicine provider practicing in WAUSAU, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D. NPI: 1255390209. 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.

ANTOINETTE HAYEK, M.D appears in the CMS NPPES registry as a Legal Medicine provider holding M.D credentials at 2727 PLAZA DR, WAUSAU, WI, 54401, with a listed phone of (715) 847-3000. NPI 1255390209 was issued on 03/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAYEK 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 8,966 prescription claims written by this provider, covering 357 Medicare beneficiaries and totaling roughly $536K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 1.3%. 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 78.8552/100 for the 2023 performance year (Quality 66.6851, Cost 54.8733), compared with the national average of 83.1.

Legal Medicine is a narrow specialty nationwide, with 1,067 enrolled providers across 51 states and an average of 2,821 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

2727 PLAZA DR
WAUSAU, WI 54401

Provider Details

NPI 1255390209
Specialty Legal Medicine
Credentials M.D
Gender Female
NPI Issued 03/20/2006

CMS Quality Score (MIPS)

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

78.8552
Final Score
Avg: 83.1
66.6851
Quality
54.8733
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANTOINETTE HAYEK, M.D 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.

MCHS HOSPITALS INC
MARSHFIELD, 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).

Brand vs generic prescribing mix · Typical

ANTOINETTE HAYEK, M.D — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 8,966 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.

8,966
Total Claims
$536K
Total Drug Cost
357
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,056
Total Day Supply
276,642
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$393K
Generic Drug Cost
$140K
Opioid Claims
113 (1.3% rate)
Antibiotic Claims
88

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.51
Gender Split
71% female / 29% male
Age Distribution
<65: 69, 65-74: 123, 75-84: 95, 85+: 70

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
425
Atorvastatin Calcium
369
Amlodipine Besylate
310
Lisinopril
309
Omeprazole
292
Pantoprazole Sodium
235
Furosemide
232
Metoprolol Succinate
222
Sertraline Hcl
221
Warfarin Sodium
195

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

Legal Medicine Overview

How ANTOINETTE HAYEK, M.D fits within the Legal Medicine landscape nationally.

1,067
Legal Medicine Providers in US
51
States with Legal Medicine
2,821
Avg Claims per Provider

ANTOINETTE HAYEK, M.D's 8,966 claims are above the specialty average of 2,821.

Nearby Legal Medicine Providers in Wisconsin

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

Compare Legal Medicine nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANTOINETTE HAYEK, M.D's specialty?
ANTOINETTE HAYEK, M.D specializes in Legal Medicine and practices in WAUSAU, Wisconsin. Credentials: M.D.
How much does ANTOINETTE HAYEK, M.D prescribe under Medicare Part D?
In 2023, ANTOINETTE HAYEK, M.D wrote 8,966 Medicare Part D claims totaling $536K in drug costs for 357 beneficiaries.
What is ANTOINETTE HAYEK, M.D's Medicare quality score?
ANTOINETTE HAYEK, M.D has a CMS MIPS Final Score of 78.8552/100 (Quality: 66.6851, Cost: 54.8733). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANTOINETTE HAYEK, M.D located?
ANTOINETTE HAYEK, M.D is located at 2727 PLAZA DR, WAUSAU, WI, 54401. Phone: (715) 847-3000.
What is ANTOINETTE HAYEK, M.D's NPI number?
ANTOINETTE HAYEK, M.D's National Provider Identifier (NPI) is 1255390209, issued on 03/20/2006.
Does ANTOINETTE HAYEK, M.D prescribe more brand-name or generic drugs?
ANTOINETTE HAYEK, M.D's prescribing is 10% brand-name and 90% generic drugs by claim count, with $393K in brand drug costs.
Does ANTOINETTE HAYEK, M.D prescribe opioids?
Yes, ANTOINETTE HAYEK, M.D had 113 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Legal Medicine providers are there in the US?
There are 1,067 Legal Medicine providers across 51 states in the US. The average Legal Medicine provider writes 2,821 Medicare Part D claims per year.
What drugs does ANTOINETTE HAYEK, M.D prescribe most often?
Based on 2023 Medicare Part D data, ANTOINETTE HAYEK, M.D's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANTOINETTE HAYEK, M.D accept Medicare?
ANTOINETTE HAYEK, M.D appears in CMS Medicare data with 8,966 Part D claims and 357 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANTOINETTE HAYEK, M.D's credentials?
ANTOINETTE HAYEK, M.D's NPI is 1255390209 with credentials M.D. 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