NPI registry status
Active
2026 NPPES data Vascular Neurology Physician NPI 1669462446 MD
Verify on CMS → William Carroll, MD
Vascular Neurology Physician in Columbus, Ohio.
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
2K
Medicare Part D claims · 249 beneficiaries · Vascular Neurology Physician avg: 378
MIPS score
81.3/100
▼ 2 pts below national avg 83.1 · Above neutral
Industry payments
$16.72
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
William Carroll, MD reported a CMS MIPS final score of 81.3/100 - below the 83.1 national average - and filed 1,878 Medicare Part D claims in 2023.
- 81.3/100
- MIPS score · -2 vs avg
- 2K
- 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.
William Carroll, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
81 36th percentile higher than 36% 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 William Carroll, 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, William Carroll, MD writes more Part D claims than 92% of them and scores higher on MIPS quality than 30% - 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 William Carroll, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
William Carroll, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 William Carroll, MD?
Near national averagePrimary specialty
Vascular Neurology Physician
Medicare Part D claims
1,878 397% vs specialty avg
MIPS final score
81.3/100 1.8 pts vs avg
Specialty distribution in Ohio
How Vascular Neurology Physician compares to other specialties among Ohio providers
Medicare quality performance, MIPS
William Carroll, MD's 2023 MIPS final score plotted against the Vascular Neurology Physician national average
- MIPS Final Score
- 81.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular Neurology Physician) - 81.3/100 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).
William Carroll, MD appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding MD credentials at 285 E STATE ST, Columbus, OH, 43215, with a listed phone of (614) 566-9777. NPI 1669462446 was issued on 10/24/2005.
Medicare Part D records for calendar year 2023 show 1,878 prescription claims written by this provider, covering 249 Medicare beneficiaries and totaling roughly $338K in drug spend, with an opioid prescribing rate of 1.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.3/100 for the 2023 performance year (Quality 73.6, Cost 65.8), 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 | 1669462446 |
|---|---|
| Specialty | Vascular Neurology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/24/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
81.3083
Final Score
Avg: 83.1
73.5834
Quality
65.7777
Cost
98
Promoting Interoperability
Reporting: Group practice
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 William Carroll, MD. Source: openpaymentsdata.cms.gov.
Total received
$17
Largest payer
CATALYST PHARMACEUTICALS, INC.
Most common payment type
Education
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.
License & disciplinary context - Ohio OMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to William Carroll, MD. To verify William Carroll, MD's current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases
OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,878
Total Claims
$338K
Total Drug Cost
249
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,959
- Total Day Supply
- 86,994
- Generic Drug Cost
- $96K
- Opioid Claims
- 31 (1.7% rate)
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 76, 65-74: 107, 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 William Carroll, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Topiramate
Topiramate
194 claims
- Levetiracetam
Levetiracetam
104 claims
- Aimovig Autoinjector
Aimovig Autoinjector
99 claims
- Lacosamide
Lacosamide
95 claims
- Gabapentin
Gabapentin
88 claims
- Duloxetine Hcl
Duloxetine Hcl
80 claims
- Primidone
Primidone
78 claims
- Donepezil Hcl 67
Donepezil Hcl
67 claims
| Drug | Claims |
|---|---|
| Topiramate | 194 |
| Levetiracetam | 104 |
| Aimovig Autoinjector Erenumab-Aooe | 99 |
| Lacosamide | 95 |
| Gabapentin | 88 |
| Duloxetine Hcl | 80 |
| Primidone | 78 |
| Donepezil Hcl | 67 |
| Lamotrigine | 51 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 46 |
* 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 William Carroll, 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
William Carroll, MD's 1,878 claims are above the specialty average of 378.
Nearby Vascular Neurology Physician Providers in Ohio
Other clinicians with the same primary specialty enrolled in Ohio, drawn from the same CMS NPPES roster as Carroll.
Dr. Joseph Broderick
MD
Cincinnati, OH
Andrew Buletko
Cleveland, OH
Dr. Richard Burgess
M.D., PH.D.
Toledo, OH
Dr. James Burke
MD
Columbus, OH
Dr. Bing Yu Chen
MDCM
Cleveland, OH
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 Ohio 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.
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Frequently Asked Questions
What is William Carroll, MD's specialty? ▼
William Carroll, MD specializes in Vascular Neurology Physician and practices in Columbus, Ohio. Credentials: MD.
How much does William Carroll, MD prescribe under Medicare Part D? ▼
In 2023, William Carroll, MD wrote 1,878 Medicare Part D claims totaling $338K in drug costs for 249 beneficiaries.
What is William Carroll, MD's Medicare quality score? ▼
William Carroll, MD has a CMS MIPS Final Score of 81.3/100 (Quality: 73.6, Cost: 65.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Carroll, MD located? ▼
William Carroll, MD is located at 285 E STATE ST, Columbus, OH, 43215. Phone: (614) 566-9777.
What is William Carroll, MD's NPI number? ▼
William Carroll, MD's National Provider Identifier (NPI) is 1669462446, issued on 10/24/2005.
Does William Carroll, MD prescribe opioids? ▼
Yes, William Carroll, MD had 31 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
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 William Carroll, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, William Carroll, MD's most frequently prescribed drugs include Topiramate, Levetiracetam, Aimovig Autoinjector. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Carroll, MD accept Medicare? ▼
William Carroll, MD appears in CMS Medicare data with 1,878 Part D claims and 249 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Carroll, MD's credentials? ▼
William Carroll, MD's NPI is 1669462446 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.