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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. Joel Barthelow
๐Ÿ‘๏ธ
MDIndividual

Joel Barthelow, M.D.

NPI: 1013974625
Chico, CA
10 years of data
Ophthalmology
$7.7M
Total Payments
53.7K
Beneficiaries
75.4K
Services
2.31x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$7.7M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $7.7M over 10 years
22.31x markup ratio (above median)
398th percentile in Ophthalmology by payments
41 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $7.7M in total Medicare payments ranks in the 98th 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

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$467.31$175.212.67x$292.10$642.7K5.5K3.3K
2015$541.59$221.112.45x$320.48$908.0K7.8K5.1K
2016$447.71$214.692.09x$233.02$945.9K8.6K5.8K
2017$355.66$154.452.30x$201.21$879.5K7.8K5.8K
2018$443.86$160.432.77x$283.43$1.0M8.9K6.5K
2019$326.38$145.042.25x$181.34$973.6K10.4K7.4K
2020$323.26$145.302.22x$177.96$594.0K7.0K5.4K
2021$405.69$188.772.15x$216.92$692.0K7.3K5.4K
2022$307.17$136.282.25x$170.89$584.5K6.6K5.0K
2023$359.59$160.372.24x$199.22$497.0K5.5K3.9K

Top Procedures (20)

66984Removal of cataract with insertion of lens
$1.6M
3.6K services$442.84/svc2.53x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$1.4M
15.4K services$90.57/svc2.32x markup
66821Removal of recurring cataract in lens capsule using laser
$655.0K
2.4K services$269.45/svc2.13x markup
66711Destruction of tissue encircling lens using en endoscope
$477.9K
940 services$508.45/svc2.14x markup
92134Diagnostic imaging of retina
$442.4K
13.7K services$32.35/svc2.25x markup
92012Eye and medical examination for diagnosis and treatment, established patient
$374.8K
5.6K services$66.73/svc2.18x markup
J0178Injection, aflibercept, 1 mg
$311.9K
417 services$748.03/svc1.86x markup
65855Laser repair to improve eye fluid flow, 1 or more sessions
$290.3K
1.5K services$193.30/svc2.13x markup
66988Removal of cataract with insertion of lens and laser treatment to decrease fluid production in eye
$260.0K
436 services$596.28/svc1.96x markup
92136Measurement of corneal curvature and depth of eye
$229.5K
4.2K services$54.50/svc2.49x markup
92083Measurement of field of vision during daylight conditions
$202.0K
4.4K services$45.44/svc2.43x markup
92250Photography of the retina
$179.0K
4.0K services$44.32/svc2.49x markup
67031Laser release of scar tissue between the lens and retina
$152.9K
494 services$309.53/svc2.09x markup
92273Full field recording of retinal electrical responses to external stimuli with interpretation and report
$149.8K
1.4K services$109.36/svc2.04x markup
92283Extended color vision examination
$147.4K
3.3K services$44.90/svc2.10x markup
67028Injection of drug into eyeโš  3.4x markup
$142.3K
1.8K services$81.03/svc3.39x markup
0191TInternal insertion of eye fluid drainage device
$127.1K
213 services$596.54/svc2.91x markup
92133Diagnostic imaging of optic nerve of eye
$99.2K
3.4K services$29.08/svc2.34x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$79.4K
782 services$101.51/svc2.46x markup
65778Insertion of amniotic membrane to eye surface
$55.6K
48 services$1.2K/svc2.40x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
66984Removal of cataract with insertion of lens3.6K$1.6M$442.842.53x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits15.4K$1.4M$90.572.32x
66821Removal of recurring cataract in lens capsule using laser2.4K$655.0K$269.452.13x
66711Destruction of tissue encircling lens using en endoscope940$477.9K$508.452.14x
92134Diagnostic imaging of retina13.7K$442.4K$32.352.25x
92012Eye and medical examination for diagnosis and treatment, established patient5.6K$374.8K$66.732.18x
J0178Injection, aflibercept, 1 mg417$311.9K$748.031.86x
65855Laser repair to improve eye fluid flow, 1 or more sessions1.5K$290.3K$193.302.13x
66988Removal of cataract with insertion of lens and laser treatment to decrease fluid production in eye436$260.0K$596.281.96x
92136Measurement of corneal curvature and depth of eye4.2K$229.5K$54.502.49x
92083Measurement of field of vision during daylight conditions4.4K$202.0K$45.442.43x
92250Photography of the retina4.0K$179.0K$44.322.49x
67031Laser release of scar tissue between the lens and retina494$152.9K$309.532.09x
92273Full field recording of retinal electrical responses to external stimuli with interpretation and report1.4K$149.8K$109.362.04x
92283Extended color vision examination3.3K$147.4K$44.902.10x
67028Injection of drug into eye1.8K$142.3K$81.033.39x
0191TInternal insertion of eye fluid drainage device213$127.1K$596.542.91x
92133Diagnostic imaging of optic nerve of eye3.4K$99.2K$29.082.34x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits782$79.4K$101.512.46x
65778Insertion of amniotic membrane to eye surface48$55.6K$1.2K2.40x

Markup Analysis

Charge-to-Payment Ratio

2.31x

This provider submits charges 2.31 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.31x means for every $100 Medicare pays, this provider initially charges $231. This is higher than the national average.

Location

Chico, 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.

Joel Barthelow (you)
$7.7M
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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