KATARZYNA OFIARA
Registered Nurse in WHEATON, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
KATARZYNA OFIARA filed 424 Medicare Part D claims in 2023 as a Registered Nurse in WHEATON, Illinois.
- 424
- Part D claims, 2023
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.
KATARZYNA OFIARA's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
424 Top 38% higher than 62% 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 KATARZYNA OFIARA?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Illinois
How Registered Nurse compares to other specialties among Illinois providers
Registered Nurse share within Illinois
Registered Nurse is one of the more visible NUCC categories in Illinois
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Registered Nurse (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Registered Nurse ABMS/AOA estimate
Est. board-certified rate (Registered Nurse) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Registered Nurse US NPIs
Specialty board-certified rate — Registered Nurse estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
KATARZYNA OFIARA appears in the CMS NPPES registry as a Registered Nurse provider at 111 N COUNTY FARM RD, WHEATON, IL, 60187, with a listed phone of (630) 682-7400. NPI 1366987539 was issued on 12/27/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what OFIARA 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 424 prescription claims written by this provider, covering 207 Medicare beneficiaries and totaling roughly $16K 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.
Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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 | 1366987539 |
|---|---|
| Specialty | Registered Nurse |
| Gender | Female |
| NPI Issued | 12/27/2016 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm KATARZYNA OFIARA's current license status, disciplinary history, and board certifications with the Illinois Department of Financial and Professional Regulation in Illinois before relying on this page for a clinical or care decision.
How we sourced this profile
License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to KATARZYNA OFIARA. To verify KATARZYNA OFIARA's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 450
- Total Day Supply
- 9,539
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 112
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 2.98
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 28, 65-74: 82, 75-84: 68, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What KATARZYNA OFIARA prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
63 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
46 claims
- Famotidine 25
Famotidine
25 claims
- Atorvastatin Calcium 21
Atorvastatin Calcium
21 claims
- Levofloxacin 20
Levofloxacin
20 claims
- Eliquis 14
Eliquis
14 claims
- Metoprolol Succinate 11
Metoprolol Succinate
11 claims
- Prednisone 11
Prednisone
11 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 63 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 46 |
| Famotidine | 25 |
| Atorvastatin Calcium | 21 |
| Levofloxacin | 20 |
| Eliquis Apixaban | 14 |
| Metoprolol Succinate | 11 |
| Prednisone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How KATARZYNA OFIARA fits within the Registered Nurse landscape nationally.
KATARZYNA OFIARA's 424 claims are below the specialty average of 1,000.
Nearby Registered Nurse Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as OFIARA.
Compare Registered Nurse nationally: see state-by-state distribution →
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Frequently Asked Questions
What is KATARZYNA OFIARA's specialty? ▼
How much does KATARZYNA OFIARA prescribe under Medicare Part D? ▼
Where is KATARZYNA OFIARA located? ▼
What is KATARZYNA OFIARA's NPI number? ▼
How many Registered Nurse providers are there in the US? ▼
What drugs does KATARZYNA OFIARA prescribe most often? ▼
Does KATARZYNA OFIARA accept Medicare? ▼
How can I verify KATARZYNA OFIARA's credentials? ▼
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.
- 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