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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. Jonathan Prenner
๐Ÿ‘๏ธ
MDIndividual

Jonathan Prenner, MD

NPI: 1245203066
New Brunswick, NJ
10 years of data
Ophthalmology
$43.1M
Total Payments
164
Beneficiaries
215.3K
Services
3.46x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$43.1M
Specialty median$383.7K
Rank #82 of 189 in specialty

๐Ÿ“‹ Key Findings

1Billed $43.1M over 10 years
23.46x markup ratio (above median)
399th percentile in Ophthalmology by payments
486 services/day โ€” unusually high
517 procedures with >3x markup

This provider averages 86 services per working day

Based on 215.3K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $43.1M in total Medicare payments ranks in the 99th percentile of Ophthalmology providers nationally.

Averaging 86 services per working day raises questions about billing patterns.

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$537.85$192.632.79x$345.22$4.6M23.7K13
2015$597.06$206.202.90x$390.86$4.6M22.2K17
2016$616.58$206.162.99x$410.42$4.7M23.0K16
2017$602.47$198.813.03x$403.66$4.1M20.5K16
2018$637.28$199.823.19x$437.46$4.8M23.8K17
2019$769.38$203.683.78x$565.70$4.8M23.4K17
2020$880.75$225.973.90x$654.78$4.2M18.7K16
2021$868.37$220.763.93x$647.61$4.1M18.5K18
2022$849.78$203.614.17x$646.17$3.9M19.0K15
2023$662.84$152.534.35x$510.31$3.4M22.5K19

Top Procedures (20)

J2778Injection, ranibizumab, 0.1 mg
$19.5M
69.4K services$280.64/svc2.93x markup
J0178Injection, aflibercept, 1 mgโš  3.4x markup
$15.6M
21.2K services$736.44/svc3.40x markup
67028Injection of drug into eyeโš  5.9x markup
$2.3M
25.0K services$91.67/svc5.94x markup
92014Established patient complete exam of visual systemโš  3.1x markup
$1.8M
18.6K services$99.38/svc3.07x markup
92134Imaging of retinaโš  9.1x markup
$1.1M
30.0K services$36.60/svc9.06x markup
92012Established patient problem focused exam of visual system
$819.7K
11.2K services$73.26/svc2.85x markup
92226Examination of eye by ophthalmoscope with retinal drawingโš  3.9x markup
$349.6K
16.3K services$21.48/svc3.91x markup
J3590Unclassified biologicsโš  3.2x markup
$247.8K
113 services$2.2K/svc3.19x markup
J2777Injection, faricimab-svoa, 0.1 mgโš  4.4x markup
$242.1K
8.6K services$28.22/svc4.43x markup
99204New patient office or other outpatient visit, 45-59 minutesโš  3.1x markup
$219.6K
1.7K services$130.20/svc3.10x markup
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mgโš  4.6x markup
$156.9K
725 services$216.36/svc4.62x markup
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg
$146.6K
987 services$148.53/svc2.89x markup
92235Exam of retinal blood vessels using a special camera after injection of a dyeโš  3.9x markup
$101.0K
1.1K services$88.81/svc3.90x markup
67042Removal of membrane from the retina, pars plana approachโš  3.6x markup
$72.7K
73 services$995.89/svc3.58x markup
92250Photography of the retinaโš  3.7x markup
$60.7K
1.2K services$52.25/svc3.70x markup
92225Examination of eye by ophthalmoscope with retinal drawingโš  3.6x markup
$59.2K
2.5K services$23.32/svc3.64x markup
92202Extended exam of the back part of the eye with optic nerve drawingโš  5.7x markup
$47.7K
3.6K services$13.12/svc5.66x markup
J9035Injection, bevacizumab, 10 mgโš  7.4x markup
$45.6K
792 services$57.59/svc7.36x markup
67036Removal of eye fluid (vitreous) between lens and retinaโš  3.6x markup
$39.5K
62 services$636.59/svc3.61x markup
99203New patient office or other outpatient visit, 30-44 minutesโš  3.2x markup
$36.9K
440 services$83.97/svc3.20x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J2778Injection, ranibizumab, 0.1 mg69.4K$19.5M$280.642.93x
J0178Injection, aflibercept, 1 mg21.2K$15.6M$736.443.40x
67028Injection of drug into eye25.0K$2.3M$91.675.94x
92014Established patient complete exam of visual system18.6K$1.8M$99.383.07x
92134Imaging of retina30.0K$1.1M$36.609.06x
92012Established patient problem focused exam of visual system11.2K$819.7K$73.262.85x
92226Examination of eye by ophthalmoscope with retinal drawing16.3K$349.6K$21.483.91x
J3590Unclassified biologics113$247.8K$2.2K3.19x
J2777Injection, faricimab-svoa, 0.1 mg8.6K$242.1K$28.224.43x
99204New patient office or other outpatient visit, 45-59 minutes1.7K$219.6K$130.203.10x
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg725$156.9K$216.364.62x
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg987$146.6K$148.532.89x
92235Exam of retinal blood vessels using a special camera after injection of a dye1.1K$101.0K$88.813.90x
67042Removal of membrane from the retina, pars plana approach73$72.7K$995.893.58x
92250Photography of the retina1.2K$60.7K$52.253.70x
92225Examination of eye by ophthalmoscope with retinal drawing2.5K$59.2K$23.323.64x
92202Extended exam of the back part of the eye with optic nerve drawing3.6K$47.7K$13.125.66x
J9035Injection, bevacizumab, 10 mg792$45.6K$57.597.36x
67036Removal of eye fluid (vitreous) between lens and retina62$39.5K$636.593.61x
99203New patient office or other outpatient visit, 30-44 minutes440$36.9K$83.973.20x

Markup Analysis

Charge-to-Payment Ratio

3.46x

This provider submits charges 3.46 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.46x means for every $100 Medicare pays, this provider initially charges $346. This is higher than the national average.

Location

New Brunswick, NJ

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 Ophthalmology providers in NJ for peer comparison.

Jonathan Prenner (you)
$43.1M
Howard Fine, MD MHSC
$44.5M
Robert Barone, MD
$43.3M
Sumit Shah, M.D.
$37.0M
David Kim, M.D.
$36.1M
Leonard Feiner, M.D
$36.0M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Howard Fine, MD MHSCNew Brunswick, NJ$44.5Mโœ“ Clear
Robert Barone, MDNewton, NJ$43.3Mโœ“ Clear
Sumit Shah, M.D.New Brunswick, NJ$37.0Mโœ“ Clear
David Kim, M.D.Union, NJ$36.1Mโœ“ Clear
Leonard Feiner, M.DUnion, NJ$36.0Mโœ“ 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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