NPI registry status
Active
2026 NPPES data Vascular Neurology Physician NPI 1801814330 MD
Verify on CMS → David Carpenter, MD
Vascular Neurology Physician in Saint Louis, 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 561 in Vascular Neurology 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
1K
Medicare Part D claims · 128 beneficiaries · Vascular Neurology Physician avg: 378
MIPS score
79.3/100
▼ 4 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Carpenter, MD reported a CMS MIPS final score of 79.3/100 - below the 83.1 national average - and filed 1,011 Medicare Part D claims in 2023.
- 79.3/100
- MIPS score · -4 vs avg
- 1K
- 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.
David Carpenter, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% 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 David Carpenter, MD sits
This provider among vascular neurology physician peers
Across the 141 vascular neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, David Carpenter, MD writes more Part D claims than 85% of them and scores higher on MIPS quality than 26% - 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 vascular neurology physician peer from a representative sample of 60; the gold marker is David Carpenter, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
David Carpenter, 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 David Carpenter, MD?
Near national averagePrimary specialty
Vascular Neurology Physician
Medicare Part D claims
1,011 167% vs specialty avg
MIPS final score
79.3/100 3.8 pts vs avg
Specialty distribution in Missouri
How Vascular Neurology Physician compares to other specialties among Missouri providers
Medicare quality performance, MIPS
David Carpenter, MD's 2023 MIPS final score plotted against the Vascular Neurology Physician national average
- MIPS Final Score
- 79.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular Neurology Physician) - 79.3/100 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).
David Carpenter, MD appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding MD credentials at 4921 PARKVIEW PL, Saint Louis, MO, 63110, with a listed phone of (314) 362-1408. NPI 1801814330 was issued on 07/17/2006.
Medicare Part D records for calendar year 2023 show 1,011 prescription claims written by this provider, covering 128 Medicare beneficiaries and totaling roughly $313K in drug spend, with an opioid prescribing rate of 2.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3/100 for the 2023 performance year (Quality 71.5, Cost 59.5), compared with the national average of 83.1.
Vascular Neurology Physician is a narrow specialty nationwide, with 561 enrolled providers across 49 states and an average of 378 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 | 1801814330 |
|---|---|
| Specialty | Vascular Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/17/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.292
Final Score
Avg: 83.1
71.46
Quality
59.5132
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where David Carpenter, 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.
Washington University
Saint Louis, MO
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.
1,011
Total Claims
$313K
Total Drug Cost
128
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,937
- Total Day Supply
- 56,477
- Generic Drug Cost
- $108K
- Opioid Claims
- 27 (2.7% rate)
Patient Demographics
- Average Patient Age
- 70.8 years
- Avg HCC Risk Score
- 1.69
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 27, 65-74: 57, 75-84: 31, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Carpenter, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levetiracetam
Levetiracetam
84 claims
- Gabapentin
Gabapentin
57 claims
- Atorvastatin Calcium
Atorvastatin Calcium
56 claims
- Aimovig Autoinjector
Aimovig Autoinjector
46 claims
- Topiramate
Topiramate
43 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
42 claims
- Clopidogrel
Clopidogrel
36 claims
- Tizanidine Hcl 31
Tizanidine Hcl
31 claims
| Drug | Claims |
|---|---|
| Levetiracetam | 84 |
| Gabapentin | 57 |
| Atorvastatin Calcium | 56 |
| Aimovig Autoinjector Erenumab-Aooe | 46 |
| Topiramate | 43 |
| Rosuvastatin Calcium | 42 |
| Clopidogrel Clopidogrel Bisulfate | 36 |
| Tizanidine Hcl | 31 |
| Eliquis Apixaban | 28 |
| Zonisamide | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Neurology Physician Overview
How David Carpenter, MD fits within the Vascular Neurology Physician landscape nationally.
561
Vascular Neurology Physician Providers in US
49
States with Vascular Neurology Physician
378
Avg Claims per Provider
David Carpenter, MD's 1,011 claims are above the specialty average of 378.
Nearby Vascular Neurology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Carpenter.
Dr. Tagann Chaisam
M.D.
Saint Louis, MO
Dr. Weston Gordon
M.D.
Saint Louis, MO
Dr. Chike Ilorah
M.D
Saint Louis, MO
Dr. Jin-Moo Lee
MD
Saint Louis, MO
Dr. Lillian Lewis
M.D.
Springfield, MO
Compare Vascular Neurology Physician nationally: see state-by-state distribution →
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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular Neurology 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore Missouri
Frequently Asked Questions
What is David Carpenter, MD's specialty? ▼
David Carpenter, MD specializes in Vascular Neurology Physician and practices in Saint Louis, Missouri. Credentials: MD.
How much does David Carpenter, MD prescribe under Medicare Part D? ▼
In 2023, David Carpenter, MD wrote 1,011 Medicare Part D claims totaling $313K in drug costs for 128 beneficiaries.
What is David Carpenter, MD's Medicare quality score? ▼
David Carpenter, MD has a CMS MIPS Final Score of 79.3/100 (Quality: 71.5, Cost: 59.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Carpenter, MD located? ▼
David Carpenter, MD is located at 4921 PARKVIEW PL, Saint Louis, MO, 63110. Phone: (314) 362-1408.
What is David Carpenter, MD's NPI number? ▼
David Carpenter, MD's National Provider Identifier (NPI) is 1801814330, issued on 07/17/2006.
Does David Carpenter, MD prescribe opioids? ▼
Yes, David Carpenter, MD had 27 opioid claims in 2023 with an opioid prescribing rate of 2.7%.
How many Vascular Neurology Physician providers are there in the US? ▼
There are 561 Vascular Neurology Physician providers across 49 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
What drugs does David Carpenter, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Carpenter, MD's most frequently prescribed drugs include Levetiracetam, Gabapentin, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Carpenter, MD accept Medicare? ▼
David Carpenter, MD appears in CMS Medicare data with 1,011 Part D claims and 128 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Carpenter, MD's credentials? ▼
David Carpenter, MD's NPI is 1801814330 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.