NPI registry status
Active
2026 NPPES data Pediatric Emergency Medicine (Pediatrics) Physician NPI 1831176171 MD
Verify on CMS → Leon Kwei, MD
Pediatric Emergency Medicine (Pediatrics) Physician in Charleston, 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 1,808 in Pediatric Emergency Medicine (Pediatrics) 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
187
Medicare Part D claims · 135 beneficiaries · Pediatric Emergency Medicine (Pediatrics) Physician avg: 162
MIPS score
90.1/100
▲ 7 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Leon Kwei, MD reported a CMS MIPS final score of 90.1/100 - above the 83.1 national average - and filed 187 Medicare Part D claims in 2023.
- 90.1/100
- MIPS score · +7 vs avg
- 187
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Leon Kwei, MD'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 40% higher than 60% 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 Leon Kwei, MD sits
This provider among pediatric emergency medicine (pediatrics) physician peers
Across the 24 pediatric emergency medicine (pediatrics) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Leon Kwei, MD writes more Part D claims than 88% of them and scores higher on MIPS quality than 33% - placing this provider in the high-volume, lower-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 pediatric emergency medicine (pediatrics) physician peer from a representative sample of 23; the gold marker is Leon Kwei, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Leon Kwei, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Leon Kwei, MD?
High performer (top quartile)Primary specialty
Pediatric Emergency Medicine (Pediatrics) Physician
Medicare Part D claims
187 15% vs specialty avg
MIPS final score
90.1/100 7 pts vs avg
Specialty distribution in West Virginia
How Pediatric Emergency Medicine (Pediatrics) Physician compares to other specialties among West Virginia providers
Medicare quality performance, MIPS
Leon Kwei, MD's 2023 MIPS final score plotted against the Pediatric Emergency Medicine (Pediatrics) Physician national average
- MIPS Final Score
- 90.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Pediatric Emergency Medicine (Pediatrics) Physician) - 90.1/100 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).
Leon Kwei, MD appears in the CMS NPPES registry as a Pediatric Emergency Medicine (Pediatrics) Physician provider holding MD credentials at 3200 MACCORKLE AVE SE, Charleston, WV, 25304, with a listed phone of (304) 388-4172. NPI 1831176171 was issued on 12/28/2005.
Medicare Part D records for calendar year 2023 show 187 prescription claims written by this provider, covering 135 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 22.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 90.1/100 for the 2023 performance year (Quality 67), compared with the national average of 83.1.
Pediatric Emergency Medicine (Pediatrics) Physician is a narrow specialty nationwide, with 1,808 enrolled providers across 46 states and an average of 162 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 | 1831176171 |
|---|---|
| Specialty | Pediatric Emergency Medicine (Pediatrics) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/28/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.1191
Final Score
Avg: 83.1
66.9698
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Leon Kwei, MD 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.
Charleston Area Medical Center Inc
Charleston, WV
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
187
Total Claims
$2K
Total Drug Cost
135
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 187
- Total Day Supply
- 1,932
- Generic Drug Cost
- $2K
- Opioid Claims
- 42 (22.5% rate)
- Antibiotic Claims
- 44
Patient Demographics
- Average Patient Age
- 66.2 years
- Avg HCC Risk Score
- 2.18
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 51, 65-74: 48, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Leon Kwei, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
34 claims
- Diclofenac Sodium
Diclofenac Sodium
29 claims
- Prednisone
Prednisone
23 claims
- Ondansetron Hcl
Ondansetron Hcl
18 claims
- Cephalexin
Cephalexin
14 claims
- Amoxicillin-Clavul… 12
Amoxicillin-Clavulanate Potass
12 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 34 |
| Diclofenac Sodium | 29 |
| Prednisone | 23 |
| Ondansetron Hcl | 18 |
| Cephalexin | 14 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pediatric Emergency Medicine (Pediatrics) Physician in WV →
All providers in West Virginia →
Compare specialties →
Pediatric Emergency Medicine (Pediatrics) Physician Overview
How Leon Kwei, MD fits within the Pediatric Emergency Medicine (Pediatrics) Physician landscape nationally.
1,808
Pediatric Emergency Medicine (Pediatrics) Physician Providers in US
46
States with Pediatric Emergency Medicine (Pediatrics) Physician
162
Avg Claims per Provider
Leon Kwei, MD's 187 claims are above the specialty average of 162.
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 Pediatric Emergency Medicine (Pediatrics) Physician 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Explore West Virginia
Frequently Asked Questions
What is Leon Kwei, MD's specialty? ▼
Leon Kwei, MD specializes in Pediatric Emergency Medicine (Pediatrics) Physician and practices in Charleston, West Virginia. Credentials: MD.
How much does Leon Kwei, MD prescribe under Medicare Part D? ▼
In 2023, Leon Kwei, MD wrote 187 Medicare Part D claims totaling $2K in drug costs for 135 beneficiaries.
What is Leon Kwei, MD's Medicare quality score? ▼
Leon Kwei, MD has a CMS MIPS Final Score of 90.1/100 (Quality: 67). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Leon Kwei, MD located? ▼
Leon Kwei, MD is located at 3200 MACCORKLE AVE SE, Charleston, WV, 25304. Phone: (304) 388-4172.
What is Leon Kwei, MD's NPI number? ▼
Leon Kwei, MD's National Provider Identifier (NPI) is 1831176171, issued on 12/28/2005.
Does Leon Kwei, MD prescribe opioids? ▼
Yes, Leon Kwei, MD had 42 opioid claims in 2023 with an opioid prescribing rate of 22.5%.
How many Pediatric Emergency Medicine (Pediatrics) Physician providers are there in the US? ▼
There are 1,808 Pediatric Emergency Medicine (Pediatrics) Physician providers across 46 states in the US. The average Pediatric Emergency Medicine (Pediatrics) Physician provider writes 162 Medicare Part D claims per year.
What drugs does Leon Kwei, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Leon Kwei, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Diclofenac Sodium, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Leon Kwei, MD accept Medicare? ▼
Leon Kwei, MD appears in CMS Medicare data with 187 Part D claims and 135 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Leon Kwei, MD's credentials? ▼
Leon Kwei, MD's NPI is 1831176171 with credentials MD. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.