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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. Carlos Medina Mendez
๐Ÿ‘๏ธ
MDIndividual

Carlos Medina Mendez, M.D.

NPI: 1811218316
Sacramento, CA
9 years of data
Ophthalmology
$38.1M
Total Payments
190
Beneficiaries
228.7K
Services
3.19x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$38.1M
Specialty median$383.7K
Rank #129 of 189 in specialty

๐Ÿ“‹ Key Findings

1Billed $38.1M over 9 years
23.19x markup ratio (above median)
399th percentile in Ophthalmology by payments
4102 services/day โ€” unusually high
5Payments surged 29441% in 2016
611 procedures with >3x markup

This provider averages 102 services per working day

Based on 228.7K total services over 9 years (250 working days/year). Learn about impossible service volumes โ†’

๐Ÿ”Ž Data Analysis

This provider's $38.1M in total Medicare payments ranks in the 99th percentile of Ophthalmology providers nationally.

Averaging 102 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 236759% from 2015 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 29441% 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
2015$198.36$34.905.68x$163.46$2.5K732
2016$410.58$161.912.54x$248.67$752.7K4.6K18
2017$428.02$162.262.64x$265.76$3.1M18.9K25
2018$398.39$159.952.49x$238.44$4.0M24.9K24
2019$425.98$159.382.67x$266.60$4.2M26.4K24
2020$547.92$183.402.99x$364.52$5.5M29.8K23
2021$828.77$217.543.81x$611.23$7.8M36.0K26
2022$726.63$206.193.52x$520.44$6.8M33.0K24
2023$372.27$109.713.39x$262.56$6.0M55.0K24

Top Procedures (20)

J0178Injection, aflibercept, 1 mgโš  3.1x markup
$15.3M
21.0K services$727.07/svc3.13x markup
J2778Injection, ranibizumab, 0.1 mg
$12.3M
47.0K services$262.12/svc2.92x markup
67028Injection of drug into eyeโš  6.0x markup
$2.6M
26.5K services$96.44/svc5.96x markup
92014Established patient complete exam of visual system
$1.2M
12.7K services$97.15/svc2.08x markup
J2777Injection, faricimab-svoa, 0.1 mg
$1.1M
38.7K services$29.12/svc2.75x markup
92134Imaging of retinaโš  3.0x markup
$1.1M
32.9K services$32.62/svc3.03x markup
92235Exam of retinal blood vessels using a special camera after injection of a dye
$631.1K
7.4K services$85.52/svc2.65x markup
J7999Compounded drug, not otherwise classified
$600.2K
9.1K services$66.14/svc1.81x markup
Q5124Injection, ranibizumab-nuna, biosimilar, (byooviz), 0.1 mg
$527.7K
3.1K services$169.95/svc2.94x markup
99204New patient office or other outpatient visit, 45-59 minutes
$371.7K
2.9K services$126.29/svc2.10x markup
92012Established patient problem focused exam of visual systemโš  3.2x markup
$353.7K
5.1K services$68.98/svc3.22x markup
92250Photography of the retina
$296.7K
7.1K services$41.83/svc2.29x markup
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg
$216.8K
1.4K services$158.03/svc2.93x markup
67228Destruction of leaking blood vessels of retina using laserโš  3.8x markup
$196.1K
690 services$284.19/svc3.79x markup
67108Repair of detached retina with drainage and removal of eye fluid between lens and retinaโš  4.9x markup
$180.0K
194 services$927.92/svc4.90x markup
99213Established patient office or other outpatient visit, 20-29 minutesโš  3.8x markup
$150.9K
2.3K services$65.56/svc3.76x markup
67041Removal of membrane of retinaโš  5.0x markup
$131.6K
141 services$933.38/svc4.98x markup
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mgโš  3.1x markup
$124.7K
577 services$216.08/svc3.10x markup
67042Removal of membrane of retina with removal of internal limiting membrane of retinaโš  4.7x markup
$111.0K
122 services$910.16/svc4.67x markup
J3490Unclassified drugsโš  4.4x markup
$89.7K
48 services$1.9K/svc4.37x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J0178Injection, aflibercept, 1 mg21.0K$15.3M$727.073.13x
J2778Injection, ranibizumab, 0.1 mg47.0K$12.3M$262.122.92x
67028Injection of drug into eye26.5K$2.6M$96.445.96x
92014Established patient complete exam of visual system12.7K$1.2M$97.152.08x
J2777Injection, faricimab-svoa, 0.1 mg38.7K$1.1M$29.122.75x
92134Imaging of retina32.9K$1.1M$32.623.03x
92235Exam of retinal blood vessels using a special camera after injection of a dye7.4K$631.1K$85.522.65x
J7999Compounded drug, not otherwise classified9.1K$600.2K$66.141.81x
Q5124Injection, ranibizumab-nuna, biosimilar, (byooviz), 0.1 mg3.1K$527.7K$169.952.94x
99204New patient office or other outpatient visit, 45-59 minutes2.9K$371.7K$126.292.10x
92012Established patient problem focused exam of visual system5.1K$353.7K$68.983.22x
92250Photography of the retina7.1K$296.7K$41.832.29x
J7312Injection, dexamethasone, intravitreal implant, 0.1 mg1.4K$216.8K$158.032.93x
67228Destruction of leaking blood vessels of retina using laser690$196.1K$284.193.79x
67108Repair of detached retina with drainage and removal of eye fluid between lens and retina194$180.0K$927.924.90x
99213Established patient office or other outpatient visit, 20-29 minutes2.3K$150.9K$65.563.76x
67041Removal of membrane of retina141$131.6K$933.384.98x
Q5128Injection, ranibizumab-eqrn (cimerli), biosimilar, 0.1 mg577$124.7K$216.083.10x
67042Removal of membrane of retina with removal of internal limiting membrane of retina122$111.0K$910.164.67x
J3490Unclassified drugs48$89.7K$1.9K4.37x

Markup Analysis

Charge-to-Payment Ratio

3.19x

This provider submits charges 3.19 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.19x means for every $100 Medicare pays, this provider initially charges $319. This is higher than the national average.

Location

Sacramento, 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.

Carlos Medina Mendez (you)
$38.1M
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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