NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1508417791
Verify on CMS → Sylwia Mirek
Physician Assistant in Naperville, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, 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
534
Medicare Part D claims · 244 beneficiaries · Physician Assistant avg: 790
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.9/100
▲ 7 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sylwia Mirek reported a CMS MIPS final score of 89.9/100 - above the 83.1 national average - and filed 534 Medicare Part D claims in 2023.
- 89.9/100
- MIPS score · +7 vs avg
- 534
- Part D claims, 2023
- 93%
- generic prescribing
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.
Sylwia Mirek's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
90 Top 42% higher than 58% of 477,587 scored providers
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
Where Sylwia Mirek sits
This provider among physician assistant peers
Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Sylwia Mirek writes more Part D claims than 70% of them and scores higher on MIPS quality than 58% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Sylwia Mirek. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Sylwia Mirek?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
534 32% vs specialty avg
MIPS final score
89.9/100 6.8 pts vs avg
Specialty distribution in Illinois
How Physician Assistant compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Sylwia Mirek's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 89.9/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Physician Assistant) - 89.9/100 vs national avg 83.1
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).
Sylwia Mirek appears in the CMS NPPES registry as a Physician Assistant provider at 1331 W 75TH ST STE 402, Naperville, IL, 60540, with a listed phone of (630) 596-8045. NPI 1508417791 was issued on 09/27/2019.
Medicare Part D records for calendar year 2023 show 534 prescription claims written by this provider, covering 244 Medicare beneficiaries and totaling roughly $74K in drug spend, split 7% brand-name and 93% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.9/100 for the 2023 performance year (Quality 100, Cost 66.3), compared with the national average of 83.1.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1508417791 |
|---|---|
| Specialty | Physician Assistant |
| Gender | Female |
| NPI Issued | 09/27/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.8793
Final Score
Avg: 83.1
100
Quality
66.2644
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Sylwia Mirek 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.
Basko Dermatology, LLC
Naperville, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Sylwia Mirek. To verify Sylwia Mirek's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
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.
Brand vs generic prescribing mix · Generic-heavy
Sylwia Mirek - brand share 7.0%
Physician Assistant average
7% brand-name claims vs 93% generic, on 534 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.
534
Total Claims
$74K
Total Drug Cost
244
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 566
- Total Day Supply
- 13,897
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $57K
- Generic Drug Cost
- $17K
- Antibiotic Claims
- 64
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 1.17
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 20, 65-74: 131, 75-84: 80, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sylwia Mirek prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ketoconazole
Ketoconazole
168 claims
- Triamcinolone Acet… 64
Triamcinolone Acetonide
64 claims
- Mometasone Furoate 61
Mometasone Furoate
61 claims
- Doxycycline Hyclate 35
Doxycycline Hyclate
35 claims
- Fluocinonide 24
Fluocinonide
24 claims
- Cephalexin 22
Cephalexin
22 claims
- Clindamycin Phosph… 20
Clindamycin Phosphate
20 claims
- Hydrocortisone 20
Hydrocortisone
20 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 168 |
| Triamcinolone Acetonide | 64 |
| Mometasone Furoate | 61 |
| Doxycycline Hyclate | 35 |
| Fluocinonide | 24 |
| Cephalexin | 22 |
| Clindamycin Phosphate | 20 |
| Hydrocortisone | 20 |
| Mupirocin | 14 |
| Otezla Apremilast | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Sylwia Mirek fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Sylwia Mirek's 534 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Mirek.
Dr. Brooke Aarhus
PA-C
Park Ridge, IL
Dr. Traci Aaron
PA-C
Chicago, IL
Dr. Sana Abbasi
PA
Carol Stream, IL
Dr. Susan Abbinanti
PA-C
Elk Grove Village, IL
Dr. Katheryn Abbott
PA
Schaumburg, IL
Compare Physician Assistant 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant 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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Frequently Asked Questions
What is Sylwia Mirek's specialty? ▼
Sylwia Mirek specializes in Physician Assistant and practices in Naperville, Illinois.
How much does Sylwia Mirek prescribe under Medicare Part D? ▼
In 2023, Sylwia Mirek wrote 534 Medicare Part D claims totaling $74K in drug costs for 244 beneficiaries.
What is Sylwia Mirek's Medicare quality score? ▼
Sylwia Mirek has a CMS MIPS Final Score of 89.9/100 (Quality: 100, Cost: 66.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sylwia Mirek located? ▼
Sylwia Mirek is located at 1331 W 75TH ST STE 402, Naperville, IL, 60540. Phone: (630) 596-8045.
What is Sylwia Mirek's NPI number? ▼
Sylwia Mirek's National Provider Identifier (NPI) is 1508417791, issued on 09/27/2019.
Does Sylwia Mirek prescribe more brand-name or generic drugs? ▼
Sylwia Mirek's prescribing is 7% brand-name and 93% generic drugs by claim count, with $57K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Sylwia Mirek prescribe most often? ▼
Based on 2023 Medicare Part D data, Sylwia Mirek's most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Mometasone Furoate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sylwia Mirek accept Medicare? ▼
Sylwia Mirek appears in CMS Medicare data with 534 Part D claims and 244 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sylwia Mirek's credentials? ▼
Sylwia Mirek's NPI is 1508417791. 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.
- 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
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.