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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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Methodology•Download Data
  1. Home
  2. Providers
  3. Mark Wieland
👁️
MDIndividual

Mark Wieland, MD

NPI: 1134114382
Mountain View, CA
10 years of data
Ophthalmology
$23.2M
Total Payments
159
Beneficiaries
154.9K
Services
2.59x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$23.2M
Specialty median$383.7K

📋 Key Findings

1Billed $23.2M over 10 years
22.59x markup ratio (above median)
399th percentile in Ophthalmology by payments
462 services/day — unusually high
56 procedures with >3x markup

This provider averages 62 services per working day

Based on 154.9K total services over 10 years (250 working days/year). Learn about impossible service volumes →

🔎 Data Analysis

This provider's $23.2M in total Medicare payments ranks in the 99th percentile of Ophthalmology providers nationally.

Averaging 62 services per working day raises questions about billing patterns.

Medicare payments to this provider grew 131% 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

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid — the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$198.61$103.861.91x$94.75$1.3M12.9K17
2015$223.04$106.462.10x$116.58$1.4M13.3K18
2016$256.66$121.932.10x$134.73$1.5M12.4K17
2017$338.45$135.022.51x$203.43$1.6M11.8K17
2018$392.85$151.532.59x$241.32$2.2M14.5K16
2019$451.24$173.482.60x$277.76$2.8M16.0K15
2020$549.90$208.402.64x$341.50$2.9M14.0K14
2021$580.20$219.552.64x$360.65$3.3M14.8K16
2022$578.97$203.282.85x$375.69$3.1M15.1K15
2023$308.99$103.003.00x$205.99$3.1M30.0K14

Top Procedures (20)

J0178Injection, aflibercept, 1 mg
$10.2M
14.1K services$725.12/svc2.26x markup
J2778Injection, ranibizumab, 0.1 mg
$5.8M
22.0K services$260.86/svc2.45x markup
67028Injection of drug into eye⚠ 6.6x markup
$1.5M
15.5K services$95.24/svc6.64x markup
92014Established patient complete exam of visual system
$1.4M
13.5K services$104.19/svc2.03x markup
92012Established patient problem focused exam of visual system
$1.4M
17.4K services$79.94/svc1.84x markup
92134Imaging of retina
$1.1M
27.5K services$39.05/svc2.56x markup
J2777Injection, faricimab-svoa, 0.1 mg
$492.3K
17.8K services$27.62/svc2.76x markup
92250Photography of the retina
$269.1K
5.1K services$52.76/svc2.43x markup
92235Exam of retinal blood vessels using a special camera after injection of a dye
$189.0K
1.9K services$101.56/svc1.94x markup
99204New patient office or other outpatient visit, 45-59 minutes
$156.6K
1.2K services$132.69/svc1.83x markup
92226Examination of eye by ophthalmoscope with retinal drawing⚠ 4.3x markup
$150.4K
6.5K services$23.07/svc4.33x markup
J7999Compounded drug, not otherwise classified
$130.8K
2.2K services$60.68/svc1.33x markup
67228Laser destruction of leaking retinal blood vessels, 1 or more sessions⚠ 3.3x markup
$91.6K
173 services$529.36/svc3.31x markup
J3590Unclassified biologics
$67.3K
1.3K services$52.16/svc1.39x markup
92004New patient complete exam of visual system
$56.7K
434 services$130.58/svc2.64x markup
66821Removal of recurring cataract in lens capsule using a laser⚠ 3.2x markup
$55.8K
173 services$322.27/svc3.16x markup
92225Examination of eye by ophthalmoscope with retinal drawing⚠ 4.0x markup
$50.2K
2.0K services$24.92/svc4.01x markup
92201Extended exam of the back part of the eye with retinal drawing⚠ 4.6x markup
$31.9K
1.5K services$21.85/svc4.58x markup
67210Laser destruction of retinal growth, 1 or more sessions
$31.8K
68 services$467.63/svc2.99x markup
67041Removal of membrane from the retina
$15.0K
14 services$1.1K/svc1.86x markup
Show detailed table ▾
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
J0178Injection, aflibercept, 1 mg14.1K$10.2M$725.122.26x
J2778Injection, ranibizumab, 0.1 mg22.0K$5.8M$260.862.45x
67028Injection of drug into eye15.5K$1.5M$95.246.64x
92014Established patient complete exam of visual system13.5K$1.4M$104.192.03x
92012Established patient problem focused exam of visual system17.4K$1.4M$79.941.84x
92134Imaging of retina27.5K$1.1M$39.052.56x
J2777Injection, faricimab-svoa, 0.1 mg17.8K$492.3K$27.622.76x
92250Photography of the retina5.1K$269.1K$52.762.43x
92235Exam of retinal blood vessels using a special camera after injection of a dye1.9K$189.0K$101.561.94x
99204New patient office or other outpatient visit, 45-59 minutes1.2K$156.6K$132.691.83x
92226Examination of eye by ophthalmoscope with retinal drawing6.5K$150.4K$23.074.33x
J7999Compounded drug, not otherwise classified2.2K$130.8K$60.681.33x
67228Laser destruction of leaking retinal blood vessels, 1 or more sessions173$91.6K$529.363.31x
J3590Unclassified biologics1.3K$67.3K$52.161.39x
92004New patient complete exam of visual system434$56.7K$130.582.64x
66821Removal of recurring cataract in lens capsule using a laser173$55.8K$322.273.16x
92225Examination of eye by ophthalmoscope with retinal drawing2.0K$50.2K$24.924.01x
92201Extended exam of the back part of the eye with retinal drawing1.5K$31.9K$21.854.58x
67210Laser destruction of retinal growth, 1 or more sessions68$31.8K$467.632.99x
67041Removal of membrane from the retina14$15.0K$1.1K1.86x

Markup Analysis

Charge-to-Payment Ratio

2.59x

This provider submits charges 2.59 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.59x means for every $100 Medicare pays, this provider initially charges $259. This is higher than the national average.

Location

Mountain View, 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.

Mark Wieland (you)
$23.2M
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 ▾
ProviderLocationTotal PaymentsStatus
Nathan Steinle, M.D.Santa Barbara, CA$63.1M✓ Clear
Stephen Couvillion, MDSanta Barbara, CA$47.7M✓ Clear
Margaret Chang, M.D.Sacramento, CA$47.6M✓ Clear
David Boyer, MDLos Angeles, CA$47.5M✓ Clear
Alessandro Castellarin, M.D.Santa Barbara, CA$46.9M✓ Clear

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Data Sources

  • • Centers for Medicare & Medicaid Services (CMS)
  • • Medicare Provider Utilization and Payment Data (2014-2023)
  • • 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.

Believe this data is inaccurate? Dispute this data