NPI registry status
Active
2026 NPPES data Vascular Surgery Physician NPI 1043439268 M.D.
Verify on CMS → Margaret Arnold, M.D.
Vascular Surgery Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,362 in 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
15
Medicare Part D claims · Vascular Surgery Physician avg: 211
Generic prescribing
0%
generic claims · 87% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88.2/100
▲ 5 pts above national avg 83.5 · Above neutral
Industry payments
$1.6K
7 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Margaret Arnold, M.D. reported a CMS MIPS final score of 88.2/100 - above the 83.5 national average - and filed 15 Medicare Part D claims in 2024.
- 88.2/100
- MIPS score · +5 vs avg
- 15
- Part D claims, 2024
- 0%
- generic prescribing
- 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.
Federal trust snapshot
What official records show about Margaret Arnold, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1043439268), first enumerated 04/25/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 15 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 88.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.6K in reported industry payments (7 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 1043439268 · Vascular Surgery Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-ABOVE · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1043439268
- ENUM-MID 2007
- TAX-NARROW 4,362
- MIPS-ABOVE 88.2/100
- RX-TRACE 15
- BOOK-THIN 96 in Maryland
- PHOTO-FINISH Lyle Breeding · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Arnold · this pr…
Arnold · this provider
88.2 MIPS pts
- Ayesha Hatch · n…
Ayesha Hatch
88.2 MIPS pts
- Babafemi Pratt ·…
Babafemi Pratt
88.2 MIPS pts
- Lyle Breeding · …
Lyle Breeding
88.2 MIPS pts
- Imran Mohiuddin …
Imran Mohiuddin
88.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Margaret Arnold, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
88 ≥ 54th percentile 54% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Margaret Arnold, M.D. sits
This provider among vascular surgery physician peers
Across the 1,225 vascular surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Margaret Arnold, M.D. writes more Part D claims than 2% of them and scores higher on MIPS quality than 50% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one vascular surgery physician peer from a representative sample of 60; the gold marker is Margaret Arnold, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Margaret Arnold, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Margaret Arnold, M.D.?
High performer (top quartile)Primary specialty
Vascular Surgery Physician
Medicare Part D claims
15 93% vs specialty avg
MIPS final score
88.2/100 4.7 pts vs avg
Specialty distribution in Maryland
How Vascular Surgery Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Margaret Arnold, M.D.'s 2023 MIPS final score plotted against the Vascular Surgery Physician national average
- MIPS Final Score
- 88.2/100
- vs 83.5 national avg · 2023 performance year
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 | 1043439268 |
|---|---|
| Specialty | Vascular Surgery Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/25/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
88.2391
Final Score
Measured-score avg: 83.5
72.9364
Quality
60.0002
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Margaret Arnold, 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.
Medstar Heart Institute LLC
Bel Air, MD
Medstar Medical Group II LLC
Rosedale, MD
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 Margaret Arnold, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.6K
Largest payer
INTUITIVE SURGICAL, INC.
Most common payment type
Travel and Lodging
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 · Brand-heavy
Margaret Arnold, M.D. - brand share 87.0%
Vascular Surgery Physician average
87% brand-name claims vs 0% generic, on 15 2024 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 2024.
15
Total Claims
$7K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 15
- Total Day Supply
- 381
- Brand vs Generic
- 87% brand / 0% generic
- Brand Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 0.76
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vascular Surgery Physician Overview
How Margaret Arnold, M.D. fits within the Vascular Surgery Physician landscape nationally.
4,362
Vascular Surgery Physician Providers in US
53
States with Vascular Surgery Physician
211
Avg Claims per Provider
Margaret Arnold, M.D.'s 15 claims are below the specialty average of 211.
Nationwide Vascular Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Arnold, both outside Maryland so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (88.2 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Vascular Surgery Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Arnold.
One of 96 Vascular Surgery Physician providers enrolled in Maryland, 5 are shown here.
Dr. Ahmad Abu-Ghaida
M.D.
Baltimore, MD
Dr. Christopher Abularrage
MD
Baltimore, MD
Dr. Gi-Ann Acosta
MD
Camp Springs, MD
Dr. Lisa Alford
M.D.
Bethesda, MD
Dr. Mouhamad Annous
MD
Towson, MD
Compare Vascular Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Margaret Arnold, M.D.'s specialty? ▼
Margaret Arnold, M.D. specializes in Vascular Surgery Physician and practices in Baltimore, Maryland. Credentials: M.D..
How much does Margaret Arnold, M.D. prescribe under Medicare Part D? ▼
In 2024, Margaret Arnold, M.D. wrote 15 Medicare Part D claims totaling $7K in drug costs for N/A beneficiaries.
What is Margaret Arnold, M.D.'s Medicare quality score? ▼
Margaret Arnold, M.D. has a CMS MIPS Final Score of 88.2/100 (Quality: 72.9, Cost: 60). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Margaret Arnold, M.D. located? ▼
Margaret Arnold, M.D. is located at 4940 EASTERN AVE, Baltimore, MD, 21224. Phone: (410) 550-4335.
What is Margaret Arnold, M.D.'s NPI number? ▼
Margaret Arnold, M.D.'s National Provider Identifier (NPI) is 1043439268, issued on 04/25/2007.
Does Margaret Arnold, M.D. prescribe more brand-name or generic drugs? ▼
Margaret Arnold, M.D.'s prescribing is 87% brand-name and 0% generic drugs by claim count, with $7K in brand drug costs.
How many Vascular Surgery Physician providers are there in the US? ▼
There are 4,362 Vascular Surgery Physician providers across 53 states in the US. The average Vascular Surgery Physician provider writes 211 Medicare Part D claims per year.
What drugs does Margaret Arnold, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Margaret Arnold, M.D.'s most frequently prescribed drugs include Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Margaret Arnold, M.D. accept Medicare? ▼
Margaret Arnold, M.D. appears in CMS Medicare data with 15 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Margaret Arnold, M.D.'s credentials? ▼
Margaret Arnold, M.D.'s NPI is 1043439268 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.