NPI registry status
Active
2026 NPPES data Vascular & Interventional Radiology Physician NPI 1841245149 MD
Verify on CMS → Massoud Arbabzadeh, MD
Vascular & Interventional Radiology Physician in Garden Grove, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,004 in Vascular & Interventional Radiology 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
21
Medicare Part D claims · Vascular & Interventional Radiology Physician avg: 72
MIPS score
87.1/100
▲ 4 pts above national avg 83.1 · Above neutral
Industry payments
$1.8K
26 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Massoud Arbabzadeh, MD reported a CMS MIPS final score of 87.1/100 - above the 83.1 national average - and filed 21 Medicare Part D claims in 2023.
- 87.1/100
- MIPS score · +4 vs avg
- 21
- 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.
Massoud Arbabzadeh, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
87 Top 46% higher than 54% 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 Massoud Arbabzadeh, MD sits
This provider among vascular & interventional radiology physician peers
Across the 400 vascular & interventional radiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Massoud Arbabzadeh, MD writes more Part D claims than 36% of them and scores higher on MIPS quality than 66% - placing this provider in the lower-volume, high-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 & interventional radiology physician peer from a representative sample of 60; the gold marker is Massoud Arbabzadeh, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Massoud Arbabzadeh, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 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 Massoud Arbabzadeh, MD?
High performer (top quartile)Primary specialty
Vascular & Interventional Radiology Physician
Medicare Part D claims
21 71% vs specialty avg
MIPS final score
87.1/100 4 pts vs avg
Specialty distribution in California
How Vascular & Interventional Radiology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Massoud Arbabzadeh, MD's 2023 MIPS final score plotted against the Vascular & Interventional Radiology Physician national average
- MIPS Final Score
- 87.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular & Interventional Radiology Physician) - 87.1/100 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).
Massoud Arbabzadeh, MD appears in the CMS NPPES registry as a Vascular & Interventional Radiology Physician provider holding MD credentials at 12827 HARBOR BLVD STE G, Garden Grove, CA, 92840, with a listed phone of (323) 973-2323. NPI 1841245149 was issued on 05/24/2006.
Medicare Part D records for calendar year 2023 show 21 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $6K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 87.1/100 for the 2023 performance year (Quality 78.4, Cost 67.8), compared with the national average of 83.1.
Vascular & Interventional Radiology Physician is a narrow specialty nationwide, with 3,004 enrolled providers across 53 states and an average of 72 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 | 1841245149 |
|---|---|
| Specialty | Vascular & Interventional Radiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/24/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.0985
Final Score
Avg: 83.1
78.387
Quality
67.7696
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Massoud Arbabzadeh, 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.
According to CMS billing records, Massoud Arbabzadeh, MD is affiliated with 3 Medicare-billing facilities.
Nephrology Associates Medical Group Inc
Riverside, CA
Orange County Vascular Access A Medical Corporation
Garden Grove, CA
Silver Summit Medical Corporation
Bakersfield, CA
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 Massoud Arbabzadeh, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.8K
Largest payer
Philips North America LLC
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.
License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Massoud Arbabzadeh, MD. To verify Massoud Arbabzadeh, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California 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.
21
Total Claims
$6K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 52
- Total Day Supply
- 1,564
- Generic Drug Cost
- $234
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 2.04
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Vascular & Interventional Radiology Physician in CA →
All providers in California →
Compare specialties →
Vascular & Interventional Radiology Physician Overview
How Massoud Arbabzadeh, MD fits within the Vascular & Interventional Radiology Physician landscape nationally.
3,004
Vascular & Interventional Radiology Physician Providers in US
53
States with Vascular & Interventional Radiology Physician
72
Avg Claims per Provider
Massoud Arbabzadeh, MD's 21 claims are below the specialty average of 72.
Nearby Vascular & Interventional Radiology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Arbabzadeh.
Dr. Peter Abdel Sayed
MD
Anaheim, CA
Dr. Stephen Abedon
M.D.
Daly City, CA
Dr. Nadine Abi-Jaoudeh
MD
Orange, CA
Lourdes Alanis
Los Angeles, CA
Dr. Richard Alberts
MD
Hermosa Beach, CA
Compare Vascular & Interventional Radiology 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Vascular & Interventional Radiology 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 Massoud Arbabzadeh, MD's specialty? ▼
Massoud Arbabzadeh, MD specializes in Vascular & Interventional Radiology Physician and practices in Garden Grove, California. Credentials: MD.
How much does Massoud Arbabzadeh, MD prescribe under Medicare Part D? ▼
In 2023, Massoud Arbabzadeh, MD wrote 21 Medicare Part D claims totaling $6K in drug costs for N/A beneficiaries.
What is Massoud Arbabzadeh, MD's Medicare quality score? ▼
Massoud Arbabzadeh, MD has a CMS MIPS Final Score of 87.1/100 (Quality: 78.4, Cost: 67.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Massoud Arbabzadeh, MD located? ▼
Massoud Arbabzadeh, MD is located at 12827 HARBOR BLVD STE G, Garden Grove, CA, 92840. Phone: (323) 973-2323.
What is Massoud Arbabzadeh, MD's NPI number? ▼
Massoud Arbabzadeh, MD's National Provider Identifier (NPI) is 1841245149, issued on 05/24/2006.
How many Vascular & Interventional Radiology Physician providers are there in the US? ▼
There are 3,004 Vascular & Interventional Radiology Physician providers across 53 states in the US. The average Vascular & Interventional Radiology Physician provider writes 72 Medicare Part D claims per year.
What drugs does Massoud Arbabzadeh, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Massoud Arbabzadeh, MD's most frequently prescribed drugs include Clopidogrel. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Massoud Arbabzadeh, MD accept Medicare? ▼
Massoud Arbabzadeh, MD appears in CMS Medicare data with 21 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 Massoud Arbabzadeh, MD's credentials? ▼
Massoud Arbabzadeh, MD's NPI is 1841245149 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.