Karol Zsarnay, CNP
NPI 1154654879 · Nurse Practitioner · Toledo, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karol Zsarnay, CNP is a Nurse Practitioner provider in Toledo, OH (NPI 1154654879).
Provider details
- NPI number
- 1154654879
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- COA.05757-NS (OH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,795 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 641 | $101 |
| Hemoglobin A1c Level83036 | 587 | $9 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 274 | $3 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 262 | $27 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $73 |
Typical Medicare-allowed amounts for these services range $3–$101 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 657 | 219 |
| Glimepiride | 419 | 134 |
| Metformin Hclbrand: Metformin Hcl Er | 417 | 132 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 330 | 129 |
| Semaglutidebrand: Ozempic | 326 | 84 |
| Atorvastatin Calcium | 307 | 104 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$288 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-09-14
- Last updated
- 2023-11-03
Frequently asked questions
- What is Karol Zsarnay's NPI number?
- Karol Zsarnay's National Provider Identifier (NPI) is 1154654879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karol Zsarnay's specialty?
- Karol Zsarnay is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karol Zsarnay located?
- Karol Zsarnay's practice location on file with NPPES is 3000 Arlington Ave, Toledo, OH 43614-2595.
- What is Karol Zsarnay's phone number?
- The practice phone number listed in the NPPES registry for Karol Zsarnay is (419) 383-3697.
- Does Karol Zsarnay accept Medicare?
- Karol Zsarnay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karol Zsarnay's NPI active?
- Yes — Karol Zsarnay's NPI (1154654879) is active in the NPPES registry as of the last update on 2023-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.