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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. Cuong-Dung Do
๐Ÿ‘๏ธ
MDIndividual

Cuong-Dung Do, M.D.

NPI: 1477574200
Westminster, CA
10 years of data
Ophthalmology
$6.8M
Total Payments
73.5K
Beneficiaries
86.5K
Services
2.23x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$6.8M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $6.8M over 10 years
22.23x markup ratio (above median)
397th percentile in Ophthalmology by payments
4Payments surged 66% in 2019
57 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $6.8M in total Medicare payments ranks in the 97th percentile of Ophthalmology 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

๐Ÿ“ˆ

Notable: Payments increased 66% in 2019

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$293.44$136.242.15x$157.20$741.1K8.6K7.2K
2015$295.65$134.752.19x$160.90$563.1K6.9K6.2K
2016$368.02$148.832.47x$219.19$699.8K8.5K7.3K
2017$288.71$117.442.46x$171.27$624.0K7.9K6.8K
2018$305.84$115.852.64x$189.99$650.0K8.6K7.3K
2019$386.85$167.532.31x$219.32$1.1M13.4K10.6K
2020$229.89$76.852.99x$153.04$422.3K6.3K5.5K
2021$399.81$151.212.64x$248.60$578.4K7.4K6.3K
2022$389.33$138.722.81x$250.61$599.2K8.1K7.1K
2023$404.94$143.052.83x$261.89$833.0K11.0K9.2K

Top Procedures (20)

92012Eye and medical examination for diagnosis and treatment, established patient
$1.6M
21.1K services$77.41/svc1.54x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$1.3M
11.8K services$110.24/svc1.36x markup
66984Removal of cataract with insertion of lensโš  3.4x markup
$974.5K
1.8K services$539.60/svc3.36x markup
92083Measurement of field of vision during daylight conditions
$372.3K
6.5K services$56.85/svc2.02x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$353.3K
2.7K services$130.45/svc1.34x markup
92133Diagnostic imaging of optic nerve of eyeโš  3.5x markup
$308.7K
9.1K services$33.79/svc3.55x markup
92250Photography of the retina
$257.5K
5.1K services$50.01/svc2.56x markup
92020Examination of cornea and iris using lens device and slit lamp
$208.5K
8.7K services$23.89/svc2.72x markup
92134Diagnostic imaging of retinaโš  3.4x markup
$157.5K
4.3K services$36.40/svc3.43x markup
68761Closure of tear duct opening using plug
$120.2K
1.1K services$111.60/svc2.29x markup
66821Removal of recurring cataract in lens capsule using laser
$118.8K
402 services$295.55/svc1.69x markup
92136Measurement of corneal curvature and depth of eye
$114.3K
2.1K services$54.78/svc2.71x markup
66761Creation of eye fluid drainage tracts in iris using laser, per session
$102.7K
383 services$268.24/svc2.24x markup
67028Injection of drug into eyeโš  6.3x markup
$100.9K
1.1K services$94.39/svc6.32x markup
66982Removal of cataract with insertion of lens
$97.5K
144 services$677.29/svc2.57x markup
67820Removal of eyelashes by forcepsโš  3.3x markup
$72.3K
2.0K services$35.57/svc3.32x markup
J9035Injection, bevacizumab, 10 mgโš  3.7x markup
$63.6K
1.1K services$59.36/svc3.70x markup
65855Laser repair to improve eye fluid flow, 1 or more sessions
$45.8K
191 services$239.64/svc2.71x markup
66991Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eyeโš  3.0x markup
$44.8K
76 services$589.33/svc3.05x markup
92025Computerized mapping of corneal curvature
$43.6K
1.4K services$32.28/svc1.62x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
92012Eye and medical examination for diagnosis and treatment, established patient21.1K$1.6M$77.411.54x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits11.8K$1.3M$110.241.36x
66984Removal of cataract with insertion of lens1.8K$974.5K$539.603.36x
92083Measurement of field of vision during daylight conditions6.5K$372.3K$56.852.02x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits2.7K$353.3K$130.451.34x
92133Diagnostic imaging of optic nerve of eye9.1K$308.7K$33.793.55x
92250Photography of the retina5.1K$257.5K$50.012.56x
92020Examination of cornea and iris using lens device and slit lamp8.7K$208.5K$23.892.72x
92134Diagnostic imaging of retina4.3K$157.5K$36.403.43x
68761Closure of tear duct opening using plug1.1K$120.2K$111.602.29x
66821Removal of recurring cataract in lens capsule using laser402$118.8K$295.551.69x
92136Measurement of corneal curvature and depth of eye2.1K$114.3K$54.782.71x
66761Creation of eye fluid drainage tracts in iris using laser, per session383$102.7K$268.242.24x
67028Injection of drug into eye1.1K$100.9K$94.396.32x
66982Removal of cataract with insertion of lens144$97.5K$677.292.57x
67820Removal of eyelashes by forceps2.0K$72.3K$35.573.32x
J9035Injection, bevacizumab, 10 mg1.1K$63.6K$59.363.70x
65855Laser repair to improve eye fluid flow, 1 or more sessions191$45.8K$239.642.71x
66991Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye76$44.8K$589.333.05x
92025Computerized mapping of corneal curvature1.4K$43.6K$32.281.62x

Markup Analysis

Charge-to-Payment Ratio

2.23x

This provider submits charges 2.23 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.23x means for every $100 Medicare pays, this provider initially charges $223. This is higher than the national average.

Location

Westminster, 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 Ophthalmology providers in CA for peer comparison.

Cuong-Dung Do (you)
$6.8M
Nathan Steinle, M.D.
$63.1M
Stephen Couvillion, MD
$47.7M
Margaret Chang, M.D.
$47.6M
David Boyer, MD
$47.5M
Alessandro Castellarin, M.D.
$46.9M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Nathan Steinle, M.D.Santa Barbara, CA$63.1Mโœ“ Clear
Stephen Couvillion, MDSanta Barbara, CA$47.7Mโœ“ Clear
Margaret Chang, M.D.Sacramento, CA$47.6Mโœ“ Clear
David Boyer, MDLos Angeles, CA$47.5Mโœ“ Clear
Alessandro Castellarin, M.D.Santa Barbara, CA$46.9Mโœ“ 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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