NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1821655390 DO
Verify on CMS → Janet Kowalsky, DO
Family Medicine Physician in Ronceverte, 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 147,760 in Family Medicine Physician, 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
420
Medicare Part D claims · 166 beneficiaries · Family Medicine Physician avg: 3K
MIPS score
90.1/100
▲ 7 pts above national avg 83.5 · Exceptional
Industry payments
$147.12
4 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Janet Kowalsky, DO reported a CMS MIPS final score of 90.1/100 - above the 83.5 national average - and filed 420 Medicare Part D claims in 2023.
- 90.1/100
- MIPS score · +7 vs avg
- 420
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥58th
- pct among measured MIPS (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1821655390 · Family Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1821655390
- ENUM-RECENT 2019
- TAX-MEGA 148K Family Medicine
- MIPS-ABOVE 90.1/100
- RX-LIGHT 420
- BOOK-LIGHT 1,037 in West Virginia
- PHOTO-FINISH Hana Hagos · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Kowalsky · this …
Kowalsky · this provider
90.1 MIPS pts
- Tina Ngoc Tran L…
Tina Ngoc Tran Ly
90.1 MIPS pts
- Hana Hagos · near
Hana Hagos
90.1 MIPS pts
- Sara Ionescu · n…
Sara Ionescu
90.1 MIPS pts
- Cecelia Kitakufe…
Cecelia Kitakufe
90.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Janet Kowalsky, DO's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
90 ≥ 58th percentile 58% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Janet Kowalsky, DO sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Janet Kowalsky, DO writes more Part D claims than 22% of them and scores higher on MIPS quality than 57% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Janet Kowalsky, DO. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Janet Kowalsky, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Janet Kowalsky, DO?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
420 88% vs specialty avg
MIPS final score
90.1/100 6.6 pts vs avg
Specialty distribution in West Virginia
How Family Medicine Physician compares to other specialties among West Virginia providers
Medicare quality performance, MIPS
Janet Kowalsky, DO's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 90.1/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1821655390 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 05/21/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.1191
Final Score
Measured-score avg: 83.5
66.9698
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
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 Janet Kowalsky, DO. Source: openpaymentsdata.cms.gov.
Total received
$147
Largest payer
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
420
Total Claims
$17K
Total Drug Cost
166
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 424
- Total Day Supply
- 6,640
- Generic Drug Cost
- $7K
- Opioid Claims
- 21 (5.0% rate)
- Antibiotic Claims
- 134
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 2.15
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 25, 65-74: 52, 75-84: 64, 85+: 25
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Janet Kowalsky, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
28 claims
- Cefdinir
Cefdinir
23 claims
- Doxycycline Hyclate
Doxycycline Hyclate
20 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
16 claims
- Levofloxacin
Levofloxacin
16 claims
- Lisinopril
Lisinopril
14 claims
- Pantoprazole Sodium
Pantoprazole Sodium
14 claims
- Cefuroxime
Cefuroxime
13 claims
| Drug | Claims |
|---|---|
| Prednisone | 28 |
| Cefdinir | 23 |
| Doxycycline Hyclate | 20 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 16 |
| Levofloxacin | 16 |
| Lisinopril | 14 |
| Pantoprazole Sodium | 14 |
| Cefuroxime Cefuroxime Axetil | 13 |
| Methylprednisolone | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Janet Kowalsky, DO fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Janet Kowalsky, DO's 420 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kowalsky, both outside West Virginia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (90.1 here).
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in West Virginia
Other clinicians with the same primary specialty enrolled in West Virginia, drawn from the same CMS NPPES roster as Kowalsky.
One of 1,037 Family Medicine Physician providers enrolled in West Virginia, 5 are shown here.
Dr. Muneel Abbas
MD
Williamson, WV
Dr. Ahmed Abdelgaber
MD
Huntington, WV
Dr. Michelle Abe
D.O.
Martinsburg, WV
Dr. Amir Abouelfetouh Elsehmawy
MD
Morgantown, WV
Dr. Alice Ackerman
DO
Philippi, WV
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Janet Kowalsky, DO's specialty? ▼
Janet Kowalsky, DO specializes in Family Medicine Physician and practices in Ronceverte, West Virginia. Credentials: DO.
How much does Janet Kowalsky, DO prescribe under Medicare Part D? ▼
In 2023, Janet Kowalsky, DO wrote 420 Medicare Part D claims totaling $17K in drug costs for 166 beneficiaries.
What is Janet Kowalsky, DO's Medicare quality score? ▼
Janet Kowalsky, DO has a CMS MIPS Final Score of 90.1/100 (Quality: 67). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Janet Kowalsky, DO located? ▼
Janet Kowalsky, DO is located at 1320 MAPLEWOOD AVE, Ronceverte, WV, 24970. Phone: (304) 647-4411.
What is Janet Kowalsky, DO's NPI number? ▼
Janet Kowalsky, DO's National Provider Identifier (NPI) is 1821655390, issued on 05/21/2019.
Does Janet Kowalsky, DO prescribe opioids? ▼
Yes, Janet Kowalsky, DO had 21 opioid claims in 2023 with an opioid prescribing rate of 5.0%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Janet Kowalsky, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Janet Kowalsky, DO's most frequently prescribed drugs include Prednisone, Cefdinir, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Janet Kowalsky, DO accept Medicare? ▼
Janet Kowalsky, DO appears in CMS Medicare data with 420 Part D claims and 166 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Janet Kowalsky, DO's credentials? ▼
Janet Kowalsky, DO's NPI is 1821655390 with credentials DO. 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.