NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1174565915 D.O.
Verify on CMS → Marc Lewen, D.O.
Cardiovascular Disease Physician in Saint Peters, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 in Cardiovascular Disease 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
5K
Medicare Part D claims · 576 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$75.54
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Marc Lewen, D.O. filed 4,993 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Saint Peters, Missouri, prescribing 85% generic.
- 5K
- Part D claims, 2023
- 85%
- generic prescribing
- $75.54
- industry payments (Sunshine Act)
- ≥94th
- 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 Marc Lewen, D.O.
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 1174565915), first enumerated 06/12/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,993 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.
- Reported
Industry payment transparency
$75.54 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1174565915 · Cardiovascular Disease Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1174565915
- ENUM-LEGACY 2006
- TAX-MID 25K Cardiovascular Disease
- RX-MID 4,993
- BOOK-THIN 479 in Missouri
- PHOTO-ENUM Anthony Frey · 2006
Marc Lewen, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,993 ≥ 94th percentile 94% 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)
Marc Lewen, D.O. 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 Marc Lewen, D.O.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
4,993 65% vs specialty avg
Specialty distribution in Missouri
How Cardiovascular Disease Physician compares to other specialties among Missouri 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 Cardiovascular Disease 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 | 1174565915 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 06/12/2006 |
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 Marc Lewen, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$76
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.
Brand vs generic prescribing mix · Typical
Marc Lewen, D.O. - brand share 15.0%
Cardiovascular Disease Physician average
15% brand-name claims vs 85% generic, on 4,993 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.
4,993
Total Claims
$824K
Total Drug Cost
576
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,894
- Total Day Supply
- 385,860
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $750K
- Generic Drug Cost
- $75K
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 1.54
- Gender Split
- 42% female / 58% male
- Age Distribution
- <65: 30, 65-74: 269, 75-84: 195, 85+: 82
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marc Lewen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
710 claims
- Metoprolol Succinate
Metoprolol Succinate
477 claims
- Eliquis
Eliquis
441 claims
- Metoprolol Tartrate
Metoprolol Tartrate
430 claims
- Lisinopril
Lisinopril
358 claims
- Carvedilol 279
Carvedilol
279 claims
- Clopidogrel 227
Clopidogrel
227 claims
- Spironolactone 188
Spironolactone
188 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 710 |
| Metoprolol Succinate | 477 |
| Eliquis Apixaban | 441 |
| Metoprolol Tartrate | 430 |
| Lisinopril | 358 |
| Carvedilol | 279 |
| Clopidogrel Clopidogrel Bisulfate | 227 |
| Spironolactone | 188 |
| Losartan Potassium | 186 |
| Furosemide | 182 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Marc Lewen, D.O. fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Marc Lewen, D.O.'s 4,993 claims are above the specialty average of 3,033.
Nationwide Cardiovascular Disease Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Lewen, both outside Missouri so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Cardiovascular Disease Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Lewen.
One of 479 Cardiovascular Disease Physician providers enrolled in Missouri, 5 are shown here.
Dr. Ala'Eldin Ababneh
MD
Saint Joseph, MO
Dr. Yousef Abdulnabi
M.D.
Saint Louis, MO
Dr. Leni Abraham
MD
St. Louis, MO
Dr. Jose Aguilera Heredia
MD
Lees Summit, MO
Dr. Farhaan Ahmad
MD
St Louis, MO
Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marc Lewen, D.O.'s specialty? ▼
Marc Lewen, D.O. specializes in Cardiovascular Disease Physician and practices in Saint Peters, Missouri. Credentials: D.O..
How much does Marc Lewen, D.O. prescribe under Medicare Part D? ▼
In 2023, Marc Lewen, D.O. wrote 4,993 Medicare Part D claims totaling $824K in drug costs for 576 beneficiaries.
Where is Marc Lewen, D.O. located? ▼
Marc Lewen, D.O. is located at 10 HOSPITAL DR, Saint Peters, MO, 63376. Phone: (636) 916-7272.
What is Marc Lewen, D.O.'s NPI number? ▼
Marc Lewen, D.O.'s National Provider Identifier (NPI) is 1174565915, issued on 06/12/2006.
Does Marc Lewen, D.O. prescribe more brand-name or generic drugs? ▼
Marc Lewen, D.O.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $750K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Marc Lewen, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Marc Lewen, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marc Lewen, D.O. accept Medicare? ▼
Marc Lewen, D.O. appears in CMS Medicare data with 4,993 Part D claims and 576 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marc Lewen, D.O.'s credentials? ▼
Marc Lewen, D.O.'s NPI is 1174565915 with credentials D.O.. 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.