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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. David Johnson
๐Ÿ‘๏ธ
MDIndividual

David Johnson, MD

NPI: 1811942527
West Columbia, SC
10 years of data
Ophthalmology
$34.8M
Total Payments
122
Beneficiaries
159.0K
Services
2.4x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$34.8M
Specialty median$383.7K
Rank #168 of 189 in specialty

๐Ÿ“‹ Key Findings

1Billed $34.8M over 10 years
22.4x markup ratio (above median)
399th percentile in Ophthalmology by payments
464 services/day โ€” unusually high
512 procedures with >3x markup

This provider averages 64 services per working day

Based on 159.0K total services over 10 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $34.8M in total Medicare payments ranks in the 99th percentile of Ophthalmology providers nationally.

Averaging 64 services per working day raises questions about billing patterns.

64% of their billing comes from a single procedure code (J2778 โ€” Injection, ranibizumab, 0.1 mg).

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$408.74$183.292.23x$225.45$2.5M13.8K14
2015$457.27$207.402.20x$249.87$3.5M16.7K14
2016$472.51$213.872.21x$258.64$3.6M16.6K17
2017$525.83$232.422.26x$293.41$4.2M18.2K13
2018$486.90$213.632.28x$273.27$4.0M18.7K11
2019$470.78$196.782.39x$274.00$4.0M20.2K11
2020$506.49$206.812.45x$299.68$3.7M18.1K9
2021$586.22$234.472.50x$351.75$3.4M14.6K11
2022$668.46$252.942.64x$415.52$2.9M11.7K10
2023$842.96$281.063.00x$561.90$3.0M10.5K12

Top Procedures (20)

J2778Injection, ranibizumab, 0.1 mg
$22.1M
78.9K services$280.52/svc1.81x markup
J0178Injection, aflibercept, 1 mg
$8.2M
11.4K services$713.59/svc2.08x markup
67028Injection of drug into eyeโš  11.6x markup
$1.6M
18.7K services$83.86/svc11.60x markup
92134Imaging of retina
$832.2K
28.7K services$29.04/svc2.60x markup
92014Established patient complete exam of visual system
$553.3K
6.8K services$81.88/svc1.74x markup
92012Established patient problem focused exam of visual system
$480.7K
8.2K services$58.55/svc1.85x markup
99204New patient office or other outpatient visit, 45-59 minutes
$257.3K
2.3K services$113.79/svc2.16x markup
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mgโš  6.0x markup
$205.4K
944 services$217.58/svc5.95x markup
67041Removal of membrane of retinaโš  6.1x markup
$115.8K
132 services$877.13/svc6.11x markup
92235Imaging of blood vessels in back of eye using fluorescein dyeโš  3.5x markup
$115.5K
1.6K services$72.51/svc3.55x markup
67210Destruction of growth of retina using a laserโš  4.4x markup
$96.8K
253 services$382.56/svc4.43x markup
J3490Unclassified drugsโš  3.8x markup
$82.9K
46 services$1.8K/svc3.75x markup
67228Destruction of leaking blood vessels of retina using laserโš  4.3x markup
$79.0K
169 services$467.61/svc4.27x markup
67040Laser destruction of eye fluid (vitreous) between the lens and retinaโš  7.0x markup
$21.8K
24 services$909.61/svc6.99x markup
67113Repair of detached retina and drainage of eye fluid between lens and retinaโš  5.3x markup
$19.5K
15 services$1.3K/svc5.35x markup
J3590Unclassified biologics
$18.0K
342 services$52.75/svc1.53x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$16.9K
167 services$101.06/svc1.49x markup
765122d ultrasound scan of eye tissue and structuresโš  8.4x markup
$12.2K
251 services$48.48/svc8.38x markup
67145Preventive retinal detachment treatment by heat or laser, 1 or more sessionsโš  3.8x markup
$10.2K
26 services$391.10/svc3.81x markup
67515Injection of medication or substance into membrane covering eyeballโš  3.1x markup
$2.3K
32 services$73.16/svc3.06x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J2778Injection, ranibizumab, 0.1 mg78.9K$22.1M$280.521.81x
J0178Injection, aflibercept, 1 mg11.4K$8.2M$713.592.08x
67028Injection of drug into eye18.7K$1.6M$83.8611.60x
92134Imaging of retina28.7K$832.2K$29.042.60x
92014Established patient complete exam of visual system6.8K$553.3K$81.881.74x
92012Established patient problem focused exam of visual system8.2K$480.7K$58.551.85x
99204New patient office or other outpatient visit, 45-59 minutes2.3K$257.3K$113.792.16x
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg944$205.4K$217.585.95x
67041Removal of membrane of retina132$115.8K$877.136.11x
92235Imaging of blood vessels in back of eye using fluorescein dye1.6K$115.5K$72.513.55x
67210Destruction of growth of retina using a laser253$96.8K$382.564.43x
J3490Unclassified drugs46$82.9K$1.8K3.75x
67228Destruction of leaking blood vessels of retina using laser169$79.0K$467.614.27x
67040Laser destruction of eye fluid (vitreous) between the lens and retina24$21.8K$909.616.99x
67113Repair of detached retina and drainage of eye fluid between lens and retina15$19.5K$1.3K5.35x
J3590Unclassified biologics342$18.0K$52.751.53x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits167$16.9K$101.061.49x
765122d ultrasound scan of eye tissue and structures251$12.2K$48.488.38x
67145Preventive retinal detachment treatment by heat or laser, 1 or more sessions26$10.2K$391.103.81x
67515Injection of medication or substance into membrane covering eyeball32$2.3K$73.163.06x

Markup Analysis

Charge-to-Payment Ratio

2.4x

This provider submits charges 2.4 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.4x means for every $100 Medicare pays, this provider initially charges $240. This is higher than the national average.

Location

West Columbia, SC

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 SC for peer comparison.

David Johnson (you)
$34.8M
Eric Jablon, M.D.
$49.1M
John Wells, MD
$38.6M
John Payne, MD
$37.4M
John Kerrison, M.D.
$35.7M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Eric Jablon, M.D.Charleston, SC$49.1Mโœ“ Clear
John Wells, MDWest Columbia, SC$38.6Mโœ“ Clear
John Payne, MDWest Columbia, SC$37.4Mโœ“ Clear
John Kerrison, M.D.Charleston, SC$35.7Mโœ“ 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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