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 3,194 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
400
Medicare Part D claims · 128 beneficiaries · Vascular & Interventional Radiology Physician avg: 88
Generic prescribing
32%
generic claims · 68% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$9.0K
37 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
John Hewett, MD reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 400 Medicare Part D claims in 2024.
- 100/100
- MIPS score · +17 vs avg
- 400
- Part D claims, 2024
- 32%
- 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 John Hewett, MD
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 1972543296), first enumerated 06/07/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 400 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 100/100 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$9.0K in reported industry payments (37 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not John Hewett, MD's individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- 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 1972543296 · Vascular & Interventional Radiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-ELITE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1972543296
- ENUM-LEGACY 2006
- TAX-NARROW 3,194
- MIPS-ELITE 100/100
- RX-LIGHT 400
- BOOK-THIN 410 in California
- PHOTO-FINISH Sanford Altman, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Hewett · this pr…
Hewett · this provider
100 MIPS pts
- Shailender Bhati…
Shailender Bhatia, M.D.
100 MIPS pts
- Sanford Altman, …
Sanford Altman, M.D.
100 MIPS pts
- Michael Aro, M.D…
Michael Aro, M.D.
100 MIPS pts
- Michael Barnidge…
Michael Barnidge, M.D.
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
John Hewett, MD'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.
100 ≥ 92nd percentile 92% 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 John Hewett, MD sits
This provider among vascular & interventional radiology physician peers
Across the 356 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 96% of them and scores higher on MIPS quality than 94% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
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
400 355% vs specialty avg
MIPS final score
100/100 16.5 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 83.5 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 | 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
Measured-score avg: 83.5
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 68.0%
Vascular & Interventional Radiology Physician average
68% brand-name claims vs 32% generic, on 400 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.
400
Total Claims
$265K
Total Drug Cost
128
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 717.733
- Total Day Supply
- 20,950
- Brand vs Generic
- 68% brand / 32% generic
- Brand Drug Cost
- $263K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 3.29
- Gender Split
- 41% female / 59% male
- Age Distribution
- <65: 15, 65-74: 54, 75-84: 42, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Hewett, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Xarelto
Xarelto
195 claims
- Repatha Sureclick 46
Repatha Sureclick
46 claims
- Eliquis 29
Eliquis
29 claims
- Rosuvastatin Calcium 26
Rosuvastatin Calcium
26 claims
- Atorvastatin Calcium 25
Atorvastatin Calcium
25 claims
- Cilostazol 16
Cilostazol
16 claims
- Clopidogrel 14
Clopidogrel
14 claims
| Drug | Claims |
|---|---|
| Xarelto Rivaroxaban | 195 |
| Repatha Sureclick Evolocumab | 46 |
| Eliquis Apixaban | 29 |
| Rosuvastatin Calcium | 26 |
| Atorvastatin Calcium | 25 |
| Cilostazol | 16 |
| Clopidogrel Clopidogrel Bisulfate | 14 |
* 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.
3,194
Vascular & Interventional Radiology Physician Providers in US
53
States with Vascular & Interventional Radiology Physician
88
Avg Claims per Provider
John Hewett, MD's 400 claims are above the specialty average of 88.
Nationwide Vascular & Interventional Radiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Hewett, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
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.
One of 410 Vascular & Interventional Radiology Physician providers enrolled in California, 5 are shown here.
Dr. Matthew Abad-Santos
MD
Los Angeles, CA
Dr. Peter Abdel Sayed
MD
Anaheim, CA
Dr. Nadine Abi-Jaoudeh
MD
Orange, CA
Dr. Pascal Acree
MD
Stanford, CA
Dr. Omowunmi Ajibola
MD
Lakewood, CA
Compare Vascular & Interventional Radiology Physician nationally: see state-by-state distribution →
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 2024, John Hewett, MD wrote 400 Medicare Part D claims totaling $265K in drug costs for 128 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 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 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 68% brand-name and 32% generic drugs by claim count, with $263K in brand drug costs.
How many Vascular & Interventional Radiology Physician providers are there in the US? ▼
There are 3,194 Vascular & Interventional Radiology Physician providers across 53 states in the US. The average Vascular & Interventional Radiology Physician provider writes 88 Medicare Part D claims per year.
What drugs does John Hewett, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, John Hewett, MD's most frequently prescribed drugs include Xarelto, Repatha Sureclick, Eliquis. 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 400 Part D claims and 128 Medicare beneficiaries in 2024. 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 (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.