NPI registry status
Active
2026 NPPES data Clinical Nurse Specialist NPI 1154654879 CNP
Verify on CMS → Karol Zsarnay, CNP
Clinical Nurse Specialist in Toledo, Ohio.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,715 in Clinical Nurse Specialist, 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
6K
Medicare Part D claims · 1K beneficiaries · Clinical Nurse Specialist avg: 953
Generic prescribing
43%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$288.04
12 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Karol Zsarnay, CNP filed 6,239 Medicare Part D claims in 2023 as a Clinical Nurse Specialist in Toledo, Ohio, prescribing 43% generic.
- 6K
- Part D claims, 2023
- 43%
- generic prescribing
- $288.04
- industry payments (Sunshine Act)
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.
Karol Zsarnay, CNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
6,239 Top 5% higher than 95% of 1,370,886 prescribers
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
What does the federal data show about Karol Zsarnay, CNP?
Quality data not reportedPrimary specialty
Clinical Nurse Specialist
Medicare Part D claims
6,239 7× vs specialty avg
Specialty distribution in Ohio
How Clinical Nurse Specialist compares to other specialties among Ohio 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 Clinical Nurse Specialist. 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).
Karol Zsarnay, CNP appears in the CMS NPPES registry as a Clinical Nurse Specialist provider holding CNP credentials at 3000 ARLINGTON AVE, Toledo, OH, 43614, with a listed phone of (419) 383-3697. NPI 1154654879 was issued on 09/14/2009.
Medicare Part D records for calendar year 2023 show 6,239 prescription claims written by this provider, covering 1,192 Medicare beneficiaries and totaling roughly $3.7 million in drug spend, split 49% brand-name and 43% generic by claim count.
Clinical Nurse Specialist is a narrow specialty nationwide, with 1,715 enrolled providers across 49 states and an average of 953 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
Provider Details
| NPI | 1154654879 |
|---|---|
| Specialty | Clinical Nurse Specialist |
| Credentials | CNP |
| Gender | Female |
| NPI Issued | 09/14/2009 |
Hospital and facility affiliations
Facilities where Karol Zsarnay, CNP 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.
Promedica Central Physicians
Perrysburg, OH
Promedica Multi Specialty Physicians
Toledo, OH
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 Karol Zsarnay, CNP. Source: openpaymentsdata.cms.gov.
Total received
$288
Largest payer
Novo Nordisk 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.
License & disciplinary context - Ohio OMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Karol Zsarnay, CNP. To verify Karol Zsarnay, CNP's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Karol Zsarnay, CNP - brand share 49.0%
Clinical Nurse Specialist average
49% brand-name claims vs 43% generic, on 6,239 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.
6,239
Total Claims
$3.7M
Total Drug Cost
1,192
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 14,279
- Total Day Supply
- 423,568
- Brand vs Generic
- 49% brand / 43% generic
- Brand Drug Cost
- $3.5M
- Generic Drug Cost
- $73K
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.64
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 171, 65-74: 624, 75-84: 342, 85+: 55
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karol Zsarnay, CNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
499 claims
- Metformin Hcl Er
Metformin Hcl Er
363 claims
- Glimepiride
Glimepiride
325 claims
- Trulicity
Trulicity
314 claims
- Atorvastatin Calcium
Atorvastatin Calcium
214 claims
- Ozempic 194
Ozempic
194 claims
- Novolog Flexpen 193
Novolog Flexpen
193 claims
- Jardiance 191
Jardiance
191 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 499 |
| Metformin Hcl Er Metformin Hcl | 363 |
| Glimepiride | 325 |
| Trulicity Dulaglutide | 314 |
| Atorvastatin Calcium | 214 |
| Ozempic Semaglutide | 194 |
| Novolog Flexpen Insulin Aspart | 193 |
| Jardiance Empagliflozin | 191 |
| Gabapentin | 189 |
| Metformin Hcl | 178 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Nurse Specialist Overview
How Karol Zsarnay, CNP fits within the Clinical Nurse Specialist landscape nationally.
1,715
Clinical Nurse Specialist Providers in US
49
States with Clinical Nurse Specialist
953
Avg Claims per Provider
Karol Zsarnay, CNP's 6,239 claims are above the specialty average of 953.
Nearby Clinical Nurse Specialist Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Zsarnay.
Dr. Patricia Adams
R.N., MSN, AOCNS
Cincinnati, OH
Dr. Nancy Albert
CNS
Cleveland, OH
Karen Allard
Cincinnati, OH
Dr. Rebecca Angerstein
CNS, FAHA
Akron, OH
Dr. Mary Arnold Long
RN CNS
Cincinnati, OH
Compare Clinical Nurse Specialist 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 Ohio medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Nurse Specialist 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.
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Medical Specialties Explained
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Frequently Asked Questions
What is Karol Zsarnay, CNP's specialty? ▼
Karol Zsarnay, CNP specializes in Clinical Nurse Specialist and practices in Toledo, Ohio. Credentials: CNP.
How much does Karol Zsarnay, CNP prescribe under Medicare Part D? ▼
In 2023, Karol Zsarnay, CNP wrote 6,239 Medicare Part D claims totaling $3.7M in drug costs for 1,192 beneficiaries.
Where is Karol Zsarnay, CNP located? ▼
Karol Zsarnay, CNP is located at 3000 ARLINGTON AVE, Toledo, OH, 43614. Phone: (419) 383-3697.
What is Karol Zsarnay, CNP's NPI number? ▼
Karol Zsarnay, CNP's National Provider Identifier (NPI) is 1154654879, issued on 09/14/2009.
Does Karol Zsarnay, CNP prescribe more brand-name or generic drugs? ▼
Karol Zsarnay, CNP's prescribing is 49% brand-name and 43% generic drugs by claim count, with $3.5M in brand drug costs.
How many Clinical Nurse Specialist providers are there in the US? ▼
There are 1,715 Clinical Nurse Specialist providers across 49 states in the US. The average Clinical Nurse Specialist provider writes 953 Medicare Part D claims per year.
What drugs does Karol Zsarnay, CNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Karol Zsarnay, CNP's most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl Er, Glimepiride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karol Zsarnay, CNP accept Medicare? ▼
Karol Zsarnay, CNP appears in CMS Medicare data with 6,239 Part D claims and 1,192 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karol Zsarnay, CNP's credentials? ▼
Karol Zsarnay, CNP's NPI is 1154654879 with credentials CNP. 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
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.