Natasha Kowalczyk
Family Nurse Practitioner in Weirton, West Virginia. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 209,817 in Family Nurse Practitioner, 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.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Natasha Kowalczyk filed 366 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Weirton, West Virginia, prescribing 55% generic.
- 366
- Part D claims, 2023
- 55%
- 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.
Natasha Kowalczyk's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
366 Top 43% higher than 57% 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 Natasha Kowalczyk?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in West Virginia
How Family Nurse Practitioner compares to other specialties among West Virginia providers
Largest specialties in West Virginia (% of in-state providers)
Family Nurse Practitioner ranks #7 among West Virginia's specialties (2.5% of in-state providers)
Each bar is a specialty's share of the West Virginia provider total, by primary NUCC taxonomy. The highlighted bar is Family Nurse Practitioner; the long tail of smaller specialties is omitted for legibility.
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 Family Nurse Practitioner. Verify directly:
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).
Natasha Kowalczyk appears in the CMS NPPES registry as a Family Nurse Practitioner provider at 651 COLLIERS WAY STE 511, Weirton, WV, 26062, with a listed phone of (304) 723-6801. NPI 1639807969 was issued on 08/14/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Kowalczyk 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 366 prescription claims written by this provider, covering 117 Medicare beneficiaries and totaling roughly $83K in drug spend, split 45% brand-name and 55% generic by claim count. 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.
Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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 | 1639807969 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Gender | Female |
| NPI Issued | 08/14/2022 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Natasha Kowalczyk's current license status, disciplinary history, and board certifications with the West Virginia Board of Medicine in West Virginia before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where Natasha Kowalczyk 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.
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 · Above average
45% brand-name claims vs 55% generic, on 366 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.
Prescribing Breakdown
- 30-Day Fills
- 513
- Total Day Supply
- 14,258
- Brand vs Generic
- 45% brand / 55% generic
- Brand Drug Cost
- $79K
- Generic Drug Cost
- $4K
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 1.94
- Gender Split
- 53% female / 47% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Natasha Kowalczyk prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
66 claims
- Trelegy Ellipta
Trelegy Ellipta
31 claims
- Spiriva Respimat
Spiriva Respimat
29 claims
- Anoro Ellipta 20
Anoro Ellipta
20 claims
- Incruse Ellipta 13
Incruse Ellipta
13 claims
- Prednisone 13
Prednisone
13 claims
- Fluticasone Propio… 12
Fluticasone Propionate
12 claims
- Montelukast Sodium 12
Montelukast Sodium
12 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 66 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 31 |
| Spiriva Respimat Tiotropium Bromide | 29 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 20 |
| Incruse Ellipta Umeclidinium Bromide | 13 |
| Prednisone | 13 |
| Fluticasone Propionate | 12 |
| Montelukast Sodium | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Natasha Kowalczyk fits within the Family Nurse Practitioner landscape nationally.
Natasha Kowalczyk's 366 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in West Virginia
Other clinicians with the same primary specialty enrolled in West Virginia, drawn from the same CMS NPPES roster as Kowalczyk.
Compare Family Nurse Practitioner 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 West Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Nurse Practitioner 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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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