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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. Blake Isernhagen
๐Ÿ‘๏ธ
MDIndividual

Blake Isernhagen, MD

NPI: 1336469444
Lexington, KY
10 years of data
Ophthalmology
$23.8M
Total Payments
168
Beneficiaries
103.3K
Services
1.9x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$23.8M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $23.8M over 10 years
21.9x markup ratio
399th percentile in Ophthalmology by payments
4Payments surged 41696% in 2016
51 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $23.8M in total Medicare payments ranks in the 99th percentile of Ophthalmology providers nationally.

Medicare payments to this provider grew 262961% from 2014 to 2023.

68% of their billing comes from a single procedure code (J0178 โ€” Injection, aflibercept, 1 mg).

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 41696% 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$141.27$29.534.78x$111.74$1.2K412
2015$144.09$25.965.55x$118.13$2.2K862
2016$513.54$283.151.81x$230.39$933.3K3.3K13
2017$528.36$288.171.83x$240.19$2.7M9.3K23
2018$530.54$267.781.98x$262.76$3.1M11.7K23
2019$500.40$266.521.88x$233.88$3.6M13.5K24
2020$513.67$275.501.86x$238.17$3.7M13.5K23
2021$562.66$295.671.90x$266.99$3.5M11.9K21
2022$488.28$251.731.94x$236.55$3.1M12.2K20
2023$222.20$114.881.93x$107.32$3.2M27.7K17

Top Procedures (20)

J0178Injection, aflibercept, 1 mg
$16.0M
21.8K services$734.95/svc1.72x markup
J2778Injection, ranibizumab, 0.1 mg
$3.8M
14.4K services$265.90/svc1.91x markup
67028Injection of drug into eye
$1.1M
13.3K services$86.25/svc2.96x markup
J2777Injection, faricimab-svoa, 0.1 mg
$591.5K
20.3K services$29.17/svc1.71x markup
92134Imaging of retina
$388.2K
14.0K services$27.72/svc2.82x markup
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg
$380.3K
2.4K services$156.11/svc1.85x markup
99213Established patient office or other outpatient visit, 20-29 minutes
$226.4K
4.2K services$54.35/svc2.82x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$205.6K
2.5K services$81.95/svc2.68x markup
67036Removal of eye fluid (vitreous) between lens and retina
$111.6K
179 services$623.44/svc2.70x markup
67108Repair of detached retina with drainage and removal of eye fluid between lens and retina
$107.4K
124 services$866.48/svc2.61x markup
J3590Unclassified biologicsโš  4.0x markup
$105.8K
1.7K services$64.06/svc4.03x markup
99204New patient office or other outpatient visit, 45-59 minutes
$101.6K
875 services$116.14/svc2.69x markup
67042Removal of membrane of retina with removal of internal limiting membrane of retina
$99.7K
116 services$859.52/svc2.53x markup
67113Complex repair of detached retina and drainage of eye fluid between lens and retina
$75.0K
80 services$938.11/svc2.68x markup
67041Removal of membrane of retina
$64.4K
78 services$825.15/svc2.60x markup
67228Destruction of leaking blood vessels of retina using laser
$63.8K
228 services$279.82/svc2.97x markup
92014Established patient complete exam of visual system
$52.0K
638 services$81.57/svc2.85x markup
92250Photography of the retina
$47.2K
1.5K services$32.04/svc2.84x markup
67145Photocoagulation treatment to prevent detachment of retina
$46.4K
142 services$326.59/svc2.78x markup
92235Exam of retinal blood vessels using a special camera after injection of a dye
$32.0K
439 services$73.00/svc2.86x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J0178Injection, aflibercept, 1 mg21.8K$16.0M$734.951.72x
J2778Injection, ranibizumab, 0.1 mg14.4K$3.8M$265.901.91x
67028Injection of drug into eye13.3K$1.1M$86.252.96x
J2777Injection, faricimab-svoa, 0.1 mg20.3K$591.5K$29.171.71x
92134Imaging of retina14.0K$388.2K$27.722.82x
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg2.4K$380.3K$156.111.85x
99213Established patient office or other outpatient visit, 20-29 minutes4.2K$226.4K$54.352.82x
99214Established patient office or other outpatient visit, 30-39 minutes2.5K$205.6K$81.952.68x
67036Removal of eye fluid (vitreous) between lens and retina179$111.6K$623.442.70x
67108Repair of detached retina with drainage and removal of eye fluid between lens and retina124$107.4K$866.482.61x
J3590Unclassified biologics1.7K$105.8K$64.064.03x
99204New patient office or other outpatient visit, 45-59 minutes875$101.6K$116.142.69x
67042Removal of membrane of retina with removal of internal limiting membrane of retina116$99.7K$859.522.53x
67113Complex repair of detached retina and drainage of eye fluid between lens and retina80$75.0K$938.112.68x
67041Removal of membrane of retina78$64.4K$825.152.60x
67228Destruction of leaking blood vessels of retina using laser228$63.8K$279.822.97x
92014Established patient complete exam of visual system638$52.0K$81.572.85x
92250Photography of the retina1.5K$47.2K$32.042.84x
67145Photocoagulation treatment to prevent detachment of retina142$46.4K$326.592.78x
92235Exam of retinal blood vessels using a special camera after injection of a dye439$32.0K$73.002.86x

Markup Analysis

Charge-to-Payment Ratio

1.9x

This provider submits charges 1.9 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.9x means for every $100 Medicare pays, this provider initially charges $190. This is lower than the national average.

Location

Lexington, KY

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 KY for peer comparison.

Blake Isernhagen (you)
$23.8M
Inder Singal, MD
$35.2M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Inder Singal, MDLouisville, KY$35.2Mโœ“ 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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