NPI registry status
Active
2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1609902279 M.D.
Verify on CMS → Robert Wiencek, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Las Vegas, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,070 in Thoracic Surgery (Cardiothoracic Vascular Surgery) 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
31
Medicare Part D claims · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician avg: 128
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Robert Wiencek, M.D. filed 31 Medicare Part D claims in 2023 as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Las Vegas, Nevada, prescribing 58% generic.
- 31
- Part D claims, 2023
- 58%
- generic prescribing
- ≥0th
- 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.
Federal trust snapshot
What official records show about Robert Wiencek, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1609902279), first enumerated 02/26/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 31 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1609902279 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
NPI-10 · ENUM-MID · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1609902279
- ENUM-MID 2007
- TAX-MID 5K Thoracic Surgery
- RX-TRACE 31
- BOOK-THIN 41 in Nevada
- PHOTO-ENUM Kalyan Vunnamadala · 2007
Robert Wiencek, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
31 ≥ 0th percentile 0% 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-eligible specialty (heuristic, not verified)
Robert Wiencek, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Robert Wiencek, M.D.?
Quality data not reportedPrimary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Medicare Part D claims
31 76% vs specialty avg
Specialty distribution in Nevada
How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Nevada 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 Thoracic Surgery (Cardiothoracic Vascular Surgery) 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 | 1609902279 |
|---|---|
| Specialty | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/26/2007 |
Brand vs generic prescribing mix · Above average
Robert Wiencek, M.D. - brand share 42.0%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician average
42% brand-name claims vs 58% generic, on 31 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.
31
Total Claims
$9K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 41
- Total Day Supply
- 1,196
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $8K
- Generic Drug Cost
- $314
Patient Demographics
- Average Patient Age
- 66.5 years
- Avg HCC Risk Score
- 0.43
More Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in NV →
All providers in Nevada →
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Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview
How Robert Wiencek, M.D. fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.
5,070
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider
Robert Wiencek, M.D.'s 31 claims are below the specialty average of 128.
Nationwide Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Wiencek, both outside Nevada so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Wiencek.
One of 41 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers enrolled in Nevada, 5 are shown here.
Frequently Asked Questions
What is Robert Wiencek, M.D.'s specialty? ▼
Robert Wiencek, M.D. specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in Las Vegas, Nevada. Credentials: M.D..
How much does Robert Wiencek, M.D. prescribe under Medicare Part D? ▼
In 2023, Robert Wiencek, M.D. wrote 31 Medicare Part D claims totaling $9K in drug costs for N/A beneficiaries.
Where is Robert Wiencek, M.D. located? ▼
Robert Wiencek, M.D. is located at 7190 S CIMARRON RD, Las Vegas, NV, 89113. Phone: (702) 675-3240.
What is Robert Wiencek, M.D.'s NPI number? ▼
Robert Wiencek, M.D.'s National Provider Identifier (NPI) is 1609902279, issued on 02/26/2007.
Does Robert Wiencek, M.D. prescribe more brand-name or generic drugs? ▼
Robert Wiencek, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $8K in brand drug costs.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US? ▼
There are 5,070 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 128 Medicare Part D claims per year.
Does Robert Wiencek, M.D. accept Medicare? ▼
Robert Wiencek, M.D. appears in CMS Medicare data with 31 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Wiencek, M.D.'s credentials? ▼
Robert Wiencek, M.D.'s NPI is 1609902279 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.