NPI registry status
Active
2026 NPPES data Vascular & Interventional Radiology Physician NPI 1972543296 MD
Verify on CMS → John Hewett, MD
Vascular & Interventional Radiology Physician in Irvine, 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
185
Medicare Part D claims · 86 beneficiaries · Vascular & Interventional Radiology Physician avg: 72
Generic prescribing
28%
generic claims · 72% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$9.0K
37 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Hewett, MD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 185 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 185
- Part D claims, 2023
- 28%
- 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.
John Hewett, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% 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 John Hewett, 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, John Hewett, MD writes more Part D claims than 93% of them and scores higher on MIPS quality than 93% - placing this provider in the high-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 John Hewett, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
John Hewett, 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 John Hewett, MD?
High performer (top quartile)Primary specialty
Vascular & Interventional Radiology Physician
Medicare Part D claims
185 157% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in California
How Vascular & Interventional Radiology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
John Hewett, MD's 2023 MIPS final score plotted against the Vascular & Interventional Radiology Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Vascular & Interventional Radiology Physician) - 100/100 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).
John Hewett, MD appears in the CMS NPPES registry as a Vascular & Interventional Radiology Physician provider holding MD credentials at 1400 REYNOLDS AVE STE 110, Irvine, CA, 92614, with a listed phone of (949) 387-4724. NPI 1972543296 was issued on 06/07/2006.
Medicare Part D records for calendar year 2023 show 185 prescription claims written by this provider, covering 86 Medicare beneficiaries and totaling roughly $148K in drug spend, split 72% brand-name and 28% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), 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 | 1972543296 |
|---|---|
| Specialty | Vascular & Interventional Radiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/07/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where John Hewett, 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.
Pedes Orange County Inc
Irvine, 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 John Hewett, MD. Source: openpaymentsdata.cms.gov.
Total received
$9.0K
Largest payer
AngioDynamics, Inc.
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 John Hewett, MD. To verify John Hewett, 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.
Brand vs generic prescribing mix · Brand-heavy
John Hewett, MD - brand share 72.0%
Vascular & Interventional Radiology Physician average
72% brand-name claims vs 28% generic, on 185 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.
185
Total Claims
$148K
Total Drug Cost
86
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 351
- Total Day Supply
- 10,104
- Brand vs Generic
- 72% brand / 28% generic
- Brand Drug Cost
- $146K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 3.67
- Gender Split
- 37% female / 63% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Xarelto Rivaroxaban | 128 |
* 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 John Hewett, 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
John Hewett, MD's 185 claims are above 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 Hewett.
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 John Hewett, MD's specialty? ▼
John Hewett, MD specializes in Vascular & Interventional Radiology Physician and practices in Irvine, California. Credentials: MD.
How much does John Hewett, MD prescribe under Medicare Part D? ▼
In 2023, John Hewett, MD wrote 185 Medicare Part D claims totaling $148K in drug costs for 86 beneficiaries.
What is John Hewett, MD's Medicare quality score? ▼
John Hewett, MD has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Hewett, MD located? ▼
John Hewett, MD is located at 1400 REYNOLDS AVE STE 110, Irvine, CA, 92614. Phone: (949) 387-4724.
What is John Hewett, MD's NPI number? ▼
John Hewett, MD's National Provider Identifier (NPI) is 1972543296, issued on 06/07/2006.
Does John Hewett, MD prescribe more brand-name or generic drugs? ▼
John Hewett, MD's prescribing is 72% brand-name and 28% generic drugs by claim count, with $146K in brand drug costs.
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 John Hewett, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Hewett, MD's most frequently prescribed drugs include Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Hewett, MD accept Medicare? ▼
John Hewett, MD appears in CMS Medicare data with 185 Part D claims and 86 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Hewett, MD's credentials? ▼
John Hewett, MD's NPI is 1972543296 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.