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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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Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Robert Princenthal
๐Ÿ“ก
MDIndividual

Robert Princenthal, MD

NPI: 1265481295
Thousand Oaks, CA
10 years of data
Diagnostic Radiology
$4.3M
Total Payments
35.4K
Beneficiaries
35.7K
Services
3.98x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.3M
Specialty median$115.6K

๐Ÿ“‹ Key Findings

1Billed $4.3M over 10 years
23.98x markup ratio (above median)
399th percentile in Diagnostic Radiology by payments
415 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $4.3M in total Medicare payments ranks in the 99th percentile of Diagnostic Radiology providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

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$577.98$108.405.33x$469.58$462.3K4.4K4.4K
2015$551.32$107.355.14x$443.97$507.3K4.6K4.6K
2016$549.41$104.335.27x$445.08$611.4K5.6K5.6K
2017$571.73$96.995.89x$474.74$547.7K4.1K4.0K
2018$524.74$128.564.08x$396.18$531.4K3.8K3.8K
2019$437.34$111.553.92x$325.79$445.4K3.4K3.4K
2020$479.60$128.953.72x$350.65$382.0K2.8K2.8K
2021$366.80$100.373.65x$266.43$336.9K2.7K2.7K
2022$414.87$91.514.53x$323.36$230.8K2.1K2.1K
2023$541.98$111.104.88x$430.88$239.8K2.1K2.1K

Top Procedures (20)

72197MRI scan of pelvis before and after contrastโš  4.6x markup
$2.4M
6.6K services$361.64/svc4.62x markup
G0202Screening mammography, producing direct digital image, bilateral, all views
$803.0K
5.4K services$149.62/svc1.46x markup
763773D radiographic procedure with computerized image postprocessingโš  3.8x markup
$280.0K
4.6K services$60.43/svc3.82x markup
77067Mammography of both breasts
$142.2K
916 services$155.26/svc1.88x markup
74178CT scan of abdomen and pelvis before and after contrastโš  6.2x markup
$94.0K
301 services$312.35/svc6.17x markup
72195MRI scan of pelvisโš  5.3x markup
$63.6K
263 services$241.65/svc5.25x markup
77080Bone density measurement using dedicated X-ray machineโš  8.1x markup
$46.2K
979 services$47.19/svc8.11x markup
77063Screening digital tomography of both breastsโš  3.9x markup
$42.2K
710 services$59.50/svc3.87x markup
71250CT scan chestโš  5.5x markup
$40.5K
297 services$136.45/svc5.49x markup
77052Computer analysis of screening mammogram to assist detection of cancerโš  4.5x markup
$39.8K
4.0K services$10.05/svc4.54x markup
77059MRI scan of both breasts with contrastโš  5.4x markup
$38.7K
81 services$478.21/svc5.36x markup
77021Radiological supervision and interpretation of MRI guidance for insertion of needle
$30.1K
75 services$400.88/svc2.97x markup
72148MRI scan of lower spinal canalโš  9.6x markup
$23.8K
152 services$156.73/svc9.58x markup
76700Ultrasound of abdomenโš  3.2x markup
$20.6K
211 services$97.83/svc3.21x markup
74176CT scan of abdomen and pelvisโš  8.6x markup
$20.0K
121 services$165.11/svc8.63x markup
76770Ultrasound behind abdominal cavityโš  3.2x markup
$19.8K
205 services$96.68/svc3.16x markup
76830Ultrasound pelvis through vagina
$18.0K
180 services$99.78/svc2.67x markup
71020X-ray of chest, 2 views, front and sideโš  4.8x markup
$16.6K
772 services$21.56/svc4.84x markup
G0204Diagnostic mammography, producing direct digital image, bilateral, all viewsโš  3.8x markup
$15.6K
122 services$127.76/svc3.77x markup
55700Biopsy of prostate gland
$14.3K
64 services$222.67/svc2.83x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
72197MRI scan of pelvis before and after contrast6.6K$2.4M$361.644.62x
G0202Screening mammography, producing direct digital image, bilateral, all views5.4K$803.0K$149.621.46x
763773D radiographic procedure with computerized image postprocessing4.6K$280.0K$60.433.82x
77067Mammography of both breasts916$142.2K$155.261.88x
74178CT scan of abdomen and pelvis before and after contrast301$94.0K$312.356.17x
72195MRI scan of pelvis263$63.6K$241.655.25x
77080Bone density measurement using dedicated X-ray machine979$46.2K$47.198.11x
77063Screening digital tomography of both breasts710$42.2K$59.503.87x
71250CT scan chest297$40.5K$136.455.49x
77052Computer analysis of screening mammogram to assist detection of cancer4.0K$39.8K$10.054.54x
77059MRI scan of both breasts with contrast81$38.7K$478.215.36x
77021Radiological supervision and interpretation of MRI guidance for insertion of needle75$30.1K$400.882.97x
72148MRI scan of lower spinal canal152$23.8K$156.739.58x
76700Ultrasound of abdomen211$20.6K$97.833.21x
74176CT scan of abdomen and pelvis121$20.0K$165.118.63x
76770Ultrasound behind abdominal cavity205$19.8K$96.683.16x
76830Ultrasound pelvis through vagina180$18.0K$99.782.67x
71020X-ray of chest, 2 views, front and side772$16.6K$21.564.84x
G0204Diagnostic mammography, producing direct digital image, bilateral, all views122$15.6K$127.763.77x
55700Biopsy of prostate gland64$14.3K$222.672.83x

Markup Analysis

Charge-to-Payment Ratio

3.98x

This provider submits charges 3.98 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.98x means for every $100 Medicare pays, this provider initially charges $398. This is higher than the national average.

Location

Thousand Oaks, 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 Diagnostic Radiology providers in CA for peer comparison.

Robert Princenthal (you)
$4.3M
Stephen Liu, M.D.
$37.2M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Stephen Liu, M.D.Modesto, CA$37.2Mโœ“ 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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