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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.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Michael Summerfield
๐Ÿ‘๏ธ
MDIndividual

Michael Summerfield, M.D.

NPI: 1588690358
Riverdale, MD
10 years of data
Ophthalmology
$5.2M
Total Payments
27.3K
Beneficiaries
35.2K
Services
4.18x
Markup Ratio

Peer Comparison

96th
percentile in specialty
This provider$5.2M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $5.2M over 10 years
24.18x markup ratio (above median)
396th percentile in Ophthalmology by payments
4Payments surged 128% in 2016
58 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $5.2M in total Medicare payments ranks in the 96th percentile of Ophthalmology providers nationally.

Medicare payments to this provider grew 247% 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 128% in 2016

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$415.34$122.013.40x$293.33$180.1K1.5K1.3K
2015$431.74$119.383.62x$312.36$185.9K1.6K1.3K
2016$501.27$115.934.32x$385.34$423.6K2.9K2.2K
2017$575.20$148.203.88x$427.00$522.6K3.4K2.5K
2018$490.09$123.473.97x$366.62$624.3K4.2K3.0K
2019$693.33$146.314.74x$547.02$612.9K3.7K2.8K
2020$649.00$156.464.15x$492.54$481.7K3.2K2.5K
2021$475.47$155.053.07x$320.42$714.0K4.4K3.3K
2022$484.17$174.472.78x$309.70$844.1K5.9K4.7K
2023$432.85$145.232.98x$287.62$625.7K4.4K3.7K

Top Procedures (20)

66984Removal of cataract with insertion of lensโš  5.3x markup
$2.8M
6.7K services$414.30/svc5.25x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$404.3K
4.1K services$99.31/svc1.76x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$313.4K
3.0K services$105.42/svc1.89x markup
92136Measurement of corneal curvature and depth of eyeโš  4.2x markup
$301.3K
6.9K services$43.52/svc4.23x markup
66982Removal of cataract with insertion of lensโš  5.4x markup
$289.2K
529 services$546.65/svc5.38x markup
99204New patient office or other outpatient visit, typically 45 minutes
$194.3K
1.6K services$121.67/svc2.44x markup
92012Eye and medical examination for diagnosis and treatment, established patient
$167.5K
2.4K services$68.75/svc1.80x markup
66821Removal of recurring cataract in lens capsule using laser
$145.6K
470 services$309.75/svc2.94x markup
65820Incision to improve eye fluid flow
$101.9K
160 services$636.95/svc2.69x markup
92134Diagnostic imaging of retinaโš  4.4x markup
$92.0K
2.8K services$33.34/svc4.43x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$81.3K
817 services$99.48/svc2.09x markup
92083Measurement of field of vision during daylight conditions
$70.2K
1.3K services$53.21/svc2.27x markup
0191TInternal insertion of eye fluid drainage deviceโš  3.7x markup
$61.5K
112 services$548.97/svc3.70x markup
92133Diagnostic imaging of optic nerve of eyeโš  5.3x markup
$39.6K
1.3K services$30.08/svc5.25x markup
92250Photography of the retina
$36.0K
779 services$46.15/svc2.39x markup
J0178Injection, aflibercept, 1 mg
$35.8K
50 services$715.68/svc2.10x markup
67028Injection of drug into eyeโš  3.2x markup
$34.3K
336 services$102.04/svc3.18x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$17.2K
321 services$53.50/svc2.44x markup
0449TInsertion of aqueous fluid drainage device into eye
$13.2K
19 services$694.12/svc2.88x markup
76519Ultrasound of eye for determination of lens powerโš  4.3x markup
$11.8K
240 services$49.32/svc4.26x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
66984Removal of cataract with insertion of lens6.7K$2.8M$414.305.25x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits4.1K$404.3K$99.311.76x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits3.0K$313.4K$105.421.89x
92136Measurement of corneal curvature and depth of eye6.9K$301.3K$43.524.23x
66982Removal of cataract with insertion of lens529$289.2K$546.655.38x
99204New patient office or other outpatient visit, typically 45 minutes1.6K$194.3K$121.672.44x
92012Eye and medical examination for diagnosis and treatment, established patient2.4K$167.5K$68.751.80x
66821Removal of recurring cataract in lens capsule using laser470$145.6K$309.752.94x
65820Incision to improve eye fluid flow160$101.9K$636.952.69x
92134Diagnostic imaging of retina2.8K$92.0K$33.344.43x
99214Established patient office or other outpatient, visit typically 25 minutes817$81.3K$99.482.09x
92083Measurement of field of vision during daylight conditions1.3K$70.2K$53.212.27x
0191TInternal insertion of eye fluid drainage device112$61.5K$548.973.70x
92133Diagnostic imaging of optic nerve of eye1.3K$39.6K$30.085.25x
92250Photography of the retina779$36.0K$46.152.39x
J0178Injection, aflibercept, 1 mg50$35.8K$715.682.10x
67028Injection of drug into eye336$34.3K$102.043.18x
99213Established patient office or other outpatient visit, typically 15 minutes321$17.2K$53.502.44x
0449TInsertion of aqueous fluid drainage device into eye19$13.2K$694.122.88x
76519Ultrasound of eye for determination of lens power240$11.8K$49.324.26x

Markup Analysis

Charge-to-Payment Ratio

4.18x

This provider submits charges 4.18 times higher than what Medicare actually pays.

What This Means

A markup ratio of 4.18x means for every $100 Medicare pays, this provider initially charges $418. This is higher than the national average.

Location

Riverdale, MD

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 MD for peer comparison.

Michael Summerfield (you)
$5.2M
Michael Elman, M.D.
$68.5M
David Warrow, M.D.
$65.5M
Raymond Sjaarda, M.D.
$47.2M
Allen Hu, MD
$45.7M
James Rial, M.D.
$45.2M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Michael Elman, M.D.Baltimore, MD$68.5Mโœ“ Clear
David Warrow, M.D.Hagerstown, MD$65.5Mโœ“ Clear
Raymond Sjaarda, M.D.Baltimore, MD$47.2Mโœ“ Clear
Allen Hu, MDHagerstown, MD$45.7Mโœ“ Clear
James Rial, M.D.Salisbury, MD$45.2Mโœ“ 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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