NPI registry status
Active
2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1629055629 M.D.
Verify on CMS → Win-Kuang Shen, M.D.
Clinical Cardiac Electrophysiology Physician in Phoenix, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,580 in Clinical Cardiac Electrophysiology 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
495
Medicare Part D claims · 143 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$176.47
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Win-Kuang Shen, M.D. filed 495 Medicare Part D claims in 2023 as a Clinical Cardiac Electrophysiology Physician in Phoenix, Arizona, prescribing 66% generic.
- 495
- Part D claims, 2023
- 66%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥62nd
- pct by Part D claim volume (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 1629055629 · Clinical Cardiac Electrophysiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1629055629
- ENUM-LEGACY 2005
- TAX-NARROW 1,580
- RX-LIGHT 495
- BOOK-THIN 31 in Arizona
- PHOTO-ENUM Scott Pollak · 2005
Win-Kuang Shen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
495 ≥ 62nd percentile 62% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Win-Kuang Shen, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Win-Kuang Shen, M.D.?
Quality data not reportedPrimary specialty
Clinical Cardiac Electrophysiology Physician
Medicare Part D claims
495 69% vs specialty avg
Specialty distribution in Arizona
How Clinical Cardiac Electrophysiology Physician compares to other specialties among Arizona providers
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 Clinical Cardiac Electrophysiology Physician. Verify directly:
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 | 1629055629 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 12/30/2005 |
Hospital and facility affiliations
Facilities where Win-Kuang Shen, M.D. 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.
Mayo Clinic
Rochester, MN
Mayo Clinic Arizona
Scottsdale, AZ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Win-Kuang Shen, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$176
Largest payer
ATRICURE, INC.
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.
Brand vs generic prescribing mix · Above average
Win-Kuang Shen, M.D. - brand share 34.0%
Clinical Cardiac Electrophysiology Physician average
34% brand-name claims vs 66% generic, on 495 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.
495
Total Claims
$244K
Total Drug Cost
143
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,355
- Total Day Supply
- 40,376
- Brand vs Generic
- 34% brand / 66% generic
- Brand Drug Cost
- $231K
- Generic Drug Cost
- $14K
Patient Demographics
- Average Patient Age
- 77.2 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 32% female / 68% male
- Age Distribution
- <65: 0, 65-74: 53, 75-84: 69, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Win-Kuang Shen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
114 claims
- Metoprolol Succinate
Metoprolol Succinate
69 claims
- Flecainide Acetate 38
Flecainide Acetate
38 claims
- Xarelto 34
Xarelto
34 claims
- Atorvastatin Calcium 22
Atorvastatin Calcium
22 claims
- Losartan Potassium 22
Losartan Potassium
22 claims
- Amlodipine Besylate 21
Amlodipine Besylate
21 claims
- Metoprolol Tartrate 15
Metoprolol Tartrate
15 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 114 |
| Metoprolol Succinate | 69 |
| Flecainide Acetate | 38 |
| Xarelto Rivaroxaban | 34 |
| Atorvastatin Calcium | 22 |
| Losartan Potassium | 22 |
| Amlodipine Besylate | 21 |
| Metoprolol Tartrate | 15 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 12 |
| Furosemide | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Clinical Cardiac Electrophysiology Physician in AZ →
All providers in Arizona →
Compare specialties →
Clinical Cardiac Electrophysiology Physician Overview
How Win-Kuang Shen, M.D. fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.
1,580
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider
Win-Kuang Shen, M.D.'s 495 claims are below the specialty average of 1,596.
Nationwide Clinical Cardiac Electrophysiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Shen, both outside Arizona so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Cardiac Electrophysiology Physician Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Shen.
One of 31 Clinical Cardiac Electrophysiology Physician providers enrolled in Arizona, 5 are shown here.
Dr. Marwan Bahu
M.D.
Phoenix, AZ
Dr. Rong Bai
MD
Phoenix, AZ
Dr. John Beshai
MD
Phoenix, AZ
Dr. Jaskanwal Bisla
M.D.
Chandler, AZ
Dr. Olubadewa Fatunde
MD
Mesa, AZ
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Win-Kuang Shen, M.D.'s specialty? ▼
Win-Kuang Shen, M.D. specializes in Clinical Cardiac Electrophysiology Physician and practices in Phoenix, Arizona. Credentials: M.D..
How much does Win-Kuang Shen, M.D. prescribe under Medicare Part D? ▼
In 2023, Win-Kuang Shen, M.D. wrote 495 Medicare Part D claims totaling $244K in drug costs for 143 beneficiaries.
Where is Win-Kuang Shen, M.D. located? ▼
Win-Kuang Shen, M.D. is located at 5777 E MAYO BLVD, Phoenix, AZ, 85054. Phone: (480) 301-8000.
What is Win-Kuang Shen, M.D.'s NPI number? ▼
Win-Kuang Shen, M.D.'s National Provider Identifier (NPI) is 1629055629, issued on 12/30/2005.
Does Win-Kuang Shen, M.D. prescribe more brand-name or generic drugs? ▼
Win-Kuang Shen, M.D.'s prescribing is 34% brand-name and 66% generic drugs by claim count, with $231K in brand drug costs.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US? ▼
There are 1,580 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does Win-Kuang Shen, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Win-Kuang Shen, M.D.'s most frequently prescribed drugs include Eliquis, Metoprolol Succinate, Flecainide Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Win-Kuang Shen, M.D. accept Medicare? ▼
Win-Kuang Shen, M.D. appears in CMS Medicare data with 495 Part D claims and 143 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Win-Kuang Shen, M.D.'s credentials? ▼
Win-Kuang Shen, M.D.'s NPI is 1629055629 with credentials M.D.. 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.
- 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.