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Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
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ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. John Hewett
๐Ÿ“ก
MDIndividual

John Hewett, MD

NPI: 1972543296
Irvine, CA
10 years of data
Interventional Radiology
$3.9M
Total Payments
18.2K
Beneficiaries
25.7K
Services
3.62x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$3.9M
Specialty median$146.5K

๐Ÿ“‹ Key Findings

1Billed $3.9M over 10 years
23.62x markup ratio (above median)
398th percentile in Interventional Radiology by payments
4Payments surged 857% in 2017
518 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $3.9M in total Medicare payments ranks in the 98th percentile of Interventional Radiology providers nationally.

Medicare payments to this provider grew 120% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 857% in 2017

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$628.18$172.573.64x$455.61$228.6K2.1K1.6K
2015$359.72$118.363.04x$241.36$216.9K1.8K1.3K
2016$591.83$131.624.50x$460.21$40.0K291245
2017$542.37$129.224.20x$413.15$382.2K2.6K1.8K
2018$528.25$131.354.02x$396.90$500.3K3.4K2.5K
2019$531.73$135.013.94x$396.72$582.8K3.7K2.6K
2020$519.50$135.543.83x$383.96$438.5K2.8K1.9K
2021$517.79$145.813.55x$371.98$529.6K3.1K2.1K
2022$543.69$161.663.36x$382.03$438.4K2.6K1.9K
2023$514.82$141.883.63x$372.94$503.0K3.4K2.2K

Top Procedures (20)

93925Ultrasound study of arteries and arterial grafts of both legs
$1.3M
5.7K services$222.28/svc2.88x markup
93970Ultrasound scan of veins of both arms or legs including assessment of compression and functional maneuversโš  3.9x markup
$863.6K
5.3K services$162.13/svc3.92x markup
93923Ultrasound study of arteries of both arms and legsโš  4.5x markup
$523.9K
5.2K services$101.33/svc4.46x markup
99215Established patient office or other outpatient, visit typically 40 minutesโš  3.9x markup
$308.0K
2.4K services$128.98/svc3.92x markup
99205New patient office or other outpatient visit, typically 60 minutesโš  3.9x markup
$223.7K
1.3K services$175.74/svc3.90x markup
93971Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuversโš  3.8x markup
$133.2K
1.2K services$107.10/svc3.84x markup
93990Ultrasound of dialysis accessโš  3.5x markup
$101.0K
820 services$123.19/svc3.47x markup
93926Ultrasound study of arteries and arterial grafts of one leg or limitedโš  4.1x markup
$91.6K
753 services$121.59/svc4.10x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  3.8x markup
$52.7K
686 services$76.76/svc3.81x markup
Q4159Affinity, per square centimeter
$48.8K
145 services$336.26/svc2.08x markup
93922Ultrasound study of arteries of both arms and legsโš  4.5x markup
$46.7K
933 services$50.01/svc4.51x markup
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neckโš  4.0x markup
$34.4K
199 services$172.76/svc3.98x markup
93886Complete ultrasound of within the brain blood flowโš  3.4x markup
$31.4K
123 services$255.09/svc3.39x markup
15275Application of skin substitute (wound surface up to 100 sq cm) to face, scalp, eyelids, mouth, neck, ears, eye region, genitals, hands, feet, and/or multiple fingers or toes (first 25 sq cm or less)โš  3.8x markup
$23.4K
164 services$142.75/svc3.75x markup
93930Ultrasound study of arteries and arterial grafts of both armsโš  3.4x markup
$16.6K
89 services$186.12/svc3.42x markup
74185MRI scan of blood vessels of abdomenโš  3.5x markup
$13.8K
37 services$373.95/svc3.45x markup
15271Application of skin substitute (wound surface up to 100 sq cm) to trunk, arms, or legs (first 25 sq cm or less)โš  4.8x markup
$12.4K
90 services$137.85/svc4.77x markup
73725MRA scan of leg blood vesselsโš  5.6x markup
$8.6K
37 services$231.52/svc5.59x markup
72198MRA scan of pelvic blood vesselsโš  5.9x markup
$7.8K
36 services$216.56/svc5.90x markup
93978Complete ultrasound of aorta, vena cava, groin vessels or bypass graftsโš  4.5x markup
$7.3K
52 services$139.70/svc4.45x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
93925Ultrasound study of arteries and arterial grafts of both legs5.7K$1.3M$222.282.88x
93970Ultrasound scan of veins of both arms or legs including assessment of compression and functional maneuvers5.3K$863.6K$162.133.92x
93923Ultrasound study of arteries of both arms and legs5.2K$523.9K$101.334.46x
99215Established patient office or other outpatient, visit typically 40 minutes2.4K$308.0K$128.983.92x
99205New patient office or other outpatient visit, typically 60 minutes1.3K$223.7K$175.743.90x
93971Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers1.2K$133.2K$107.103.84x
93990Ultrasound of dialysis access820$101.0K$123.193.47x
93926Ultrasound study of arteries and arterial grafts of one leg or limited753$91.6K$121.594.10x
99213Established patient office or other outpatient visit, typically 15 minutes686$52.7K$76.763.81x
Q4159Affinity, per square centimeter145$48.8K$336.262.08x
93922Ultrasound study of arteries of both arms and legs933$46.7K$50.014.51x
93880Ultrasound scanning of blood flow (outside the brain) on both sides of head and neck199$34.4K$172.763.98x
93886Complete ultrasound of within the brain blood flow123$31.4K$255.093.39x
15275Application of skin substitute (wound surface up to 100 sq cm) to face, scalp, eyelids, mouth, neck, ears, eye region, genitals, hands, feet, and/or multiple fingers or toes (first 25 sq cm or less)164$23.4K$142.753.75x
93930Ultrasound study of arteries and arterial grafts of both arms89$16.6K$186.123.42x
74185MRI scan of blood vessels of abdomen37$13.8K$373.953.45x
15271Application of skin substitute (wound surface up to 100 sq cm) to trunk, arms, or legs (first 25 sq cm or less)90$12.4K$137.854.77x
73725MRA scan of leg blood vessels37$8.6K$231.525.59x
72198MRA scan of pelvic blood vessels36$7.8K$216.565.90x
93978Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts52$7.3K$139.704.45x

Markup Analysis

Charge-to-Payment Ratio

3.62x

This provider submits charges 3.62 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.62x means for every $100 Medicare pays, this provider initially charges $362. This is higher than the national average.

Location

Irvine, CA

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Similar Providers

Other Interventional Radiology providers in CA for peer comparison.

John Hewett (you)
$3.9M
Amiel Moshfegh, MD
$73.8M
Malwinder Singha, MD
$43.1M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Amiel Moshfegh, MDCommerce, CA$73.8Mโœ“ Clear
Malwinder Singha, MDRancho Cucamonga, CA$43.1Mโœ“ Clear

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Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

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