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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. Mireille Hamparian
๐Ÿ‘๏ธ
MDIndividual

Mireille Hamparian, MD

NPI: 1710969506
Glendale, CA
10 years of data
Ophthalmology
$8.8M
Total Payments
81.0K
Beneficiaries
110.5K
Services
2.26x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$8.8M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $8.8M over 10 years
22.26x markup ratio (above median)
398th percentile in Ophthalmology by payments
42 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $8.8M in total Medicare payments ranks in the 98th percentile of Ophthalmology providers nationally.

Medicare payments to this provider grew 196% 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 โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$512.45$219.222.34x$293.23$457.1K4.5K3.6K
2015$669.06$191.923.49x$477.14$514.5K5.6K4.6K
2016$372.62$190.211.96x$182.41$726.8K7.5K5.9K
2017$350.38$160.682.18x$189.70$789.7K9.9K7.7K
2018$380.07$154.662.46x$225.41$784.9K11.1K8.5K
2019$329.99$144.912.28x$185.08$823.6K11.9K9.0K
2020$371.93$171.452.17x$200.48$891.8K11.4K8.2K
2021$372.79$182.092.05x$190.70$1.2M14.4K10.2K
2022$338.80$161.632.10x$177.17$1.2M16.0K11.0K
2023$423.57$202.522.09x$221.05$1.4M18.1K12.1K

Top Procedures (20)

66984Removal of cataract with insertion of lens
$1.0M
2.2K services$480.71/svc2.56x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$929.4K
6.8K services$135.72/svc1.88x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$756.8K
7.4K services$102.02/svc1.86x markup
92250Photography of the retinaโš  3.3x markup
$675.9K
15.7K services$43.01/svc3.28x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$574.9K
9.1K services$63.36/svc2.14x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$565.1K
5.1K services$111.16/svc1.88x markup
99204New patient office or other outpatient visit, typically 45 minutes
$413.4K
3.0K services$137.56/svc2.11x markup
92020Examination of cornea and iris using lens device and slit lamp
$354.6K
14.5K services$24.41/svc1.96x markup
92025Computerized mapping of corneal curvature
$271.3K
8.5K services$32.03/svc2.03x markup
68330Release of scar tissue from conjunctiva
$270.3K
472 services$572.62/svc1.84x markup
66174Dilation to improve eye fluid flow
$250.9K
320 services$784.10/svc2.04x markup
68761Closure of tear duct opening using plug
$230.0K
2.1K services$109.04/svc2.38x markup
92134Diagnostic imaging of retina
$196.3K
5.4K services$36.17/svc2.20x markup
92083Measurement of field of vision during daylight conditionsโš  3.2x markup
$193.7K
5.1K services$38.02/svc3.20x markup
66982Removal of cataract with insertion of lens
$181.1K
300 services$603.75/svc2.37x markup
0191TInternal insertion of eye fluid drainage device
$173.3K
254 services$682.27/svc2.44x markup
66821Removal of recurring cataract in lens capsule using laser
$163.1K
551 services$296.03/svc2.07x markup
92133Diagnostic imaging of optic nerve of eye
$155.6K
4.7K services$32.95/svc2.80x markup
83861Microfluid analysis of tears
$148.9K
6.7K services$22.18/svc1.58x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$148.0K
1.2K services$126.35/svc2.06x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
66984Removal of cataract with insertion of lens2.2K$1.0M$480.712.56x
99215Established patient office or other outpatient, visit typically 40 minutes6.8K$929.4K$135.721.88x
99214Established patient office or other outpatient, visit typically 25 minutes7.4K$756.8K$102.021.86x
92250Photography of the retina15.7K$675.9K$43.013.28x
99213Established patient office or other outpatient visit, typically 15 minutes9.1K$574.9K$63.362.14x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits5.1K$565.1K$111.161.88x
99204New patient office or other outpatient visit, typically 45 minutes3.0K$413.4K$137.562.11x
92020Examination of cornea and iris using lens device and slit lamp14.5K$354.6K$24.411.96x
92025Computerized mapping of corneal curvature8.5K$271.3K$32.032.03x
68330Release of scar tissue from conjunctiva472$270.3K$572.621.84x
66174Dilation to improve eye fluid flow320$250.9K$784.102.04x
68761Closure of tear duct opening using plug2.1K$230.0K$109.042.38x
92134Diagnostic imaging of retina5.4K$196.3K$36.172.20x
92083Measurement of field of vision during daylight conditions5.1K$193.7K$38.023.20x
66982Removal of cataract with insertion of lens300$181.1K$603.752.37x
0191TInternal insertion of eye fluid drainage device254$173.3K$682.272.44x
66821Removal of recurring cataract in lens capsule using laser551$163.1K$296.032.07x
92133Diagnostic imaging of optic nerve of eye4.7K$155.6K$32.952.80x
83861Microfluid analysis of tears6.7K$148.9K$22.181.58x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits1.2K$148.0K$126.352.06x

Markup Analysis

Charge-to-Payment Ratio

2.26x

This provider submits charges 2.26 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.26x means for every $100 Medicare pays, this provider initially charges $226. This is higher than the national average.

Location

Glendale, 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.

Mireille Hamparian (you)
$8.8M
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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