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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. Andrew Iwach
๐Ÿ‘๏ธ
MDIndividual

Andrew Iwach, MD

NPI: 1871682088
San Francisco, CA
10 years of data
Ophthalmology
$3.8M
Total Payments
33.9K
Beneficiaries
46.5K
Services
1.55x
Markup Ratio

Peer Comparison

95th
percentile in specialty
This provider$3.8M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $3.8M over 10 years
21.55x markup ratio
395th percentile in Ophthalmology by payments
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $3.8M in total Medicare payments ranks in the 95th 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$416.45$251.321.66x$165.13$384.0K4.3K3.1K
2015$424.13$251.471.69x$172.66$362.3K4.1K3.0K
2016$375.72$209.831.79x$165.89$332.4K4.2K3.1K
2017$395.98$225.601.76x$170.38$308.8K4.1K3.0K
2018$404.25$251.061.61x$153.19$341.0K4.5K3.4K
2019$372.75$248.741.50x$124.01$483.3K5.4K3.9K
2020$304.59$214.851.42x$89.74$351.1K4.0K2.9K
2021$428.01$247.991.73x$180.02$494.4K5.5K4.0K
2022$301.11$203.401.48x$97.71$410.2K5.2K3.8K
2023$307.47$207.141.48x$100.33$382.0K5.1K3.7K

Top Procedures (20)

92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$1.1M
10.6K services$105.12/svc1.54x markup
92012Eye and medical examination for diagnosis and treatment, established patient
$712.0K
9.5K services$74.96/svc1.49x markup
92083Measurement of field of vision during daylight conditions
$555.3K
9.3K services$59.58/svc1.48x markup
92133Diagnostic imaging of optic nerve of eye
$274.5K
8.1K services$33.89/svc1.57x markup
66984Removal of cataract with insertion of lens
$129.4K
263 services$492.20/svc1.64x markup
66982Removal of cataract with insertion of lens
$125.7K
188 services$668.77/svc1.55x markup
65820Incision to improve eye fluid flow
$124.6K
192 services$649.12/svc1.40x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$115.5K
940 services$122.83/svc1.54x markup
66180Creation of shunt to improve eye fluid flow
$95.8K
118 services$811.65/svc1.40x markup
92020Examination of cornea and iris using lens device and slit lamp
$80.8K
3.2K services$25.27/svc1.38x markup
0191TInternal insertion of eye fluid drainage device
$74.6K
129 services$578.18/svc2.95x markup
66821Removal of recurring cataract in lens capsule using laser
$73.9K
243 services$304.25/svc1.40x markup
66761Creation of eye fluid drainage tracts in iris using laser, per session
$61.4K
218 services$281.53/svc1.40x markup
92250Photography of the retina
$60.5K
963 services$62.84/svc1.51x markup
65855Laser repair to improve eye fluid flow, 1 or more sessions
$57.3K
233 services$245.79/svc1.43x markup
66174Dilation to improve eye fluid flow
$47.4K
131 services$361.99/svc2.24x markup
66710Destruction of lens tissue using laser
$35.5K
103 services$344.95/svc1.60x markup
92136Measurement of corneal curvature and depth of eye
$21.6K
400 services$53.99/svc1.34x markup
99205New patient office or other outpatient visit, typically 60 minutes
$19.4K
115 services$168.98/svc1.53x markup
76514Ultrasound of corneal structure and measurement
$11.9K
1.0K services$11.57/svc1.76x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits10.6K$1.1M$105.121.54x
92012Eye and medical examination for diagnosis and treatment, established patient9.5K$712.0K$74.961.49x
92083Measurement of field of vision during daylight conditions9.3K$555.3K$59.581.48x
92133Diagnostic imaging of optic nerve of eye8.1K$274.5K$33.891.57x
66984Removal of cataract with insertion of lens263$129.4K$492.201.64x
66982Removal of cataract with insertion of lens188$125.7K$668.771.55x
65820Incision to improve eye fluid flow192$124.6K$649.121.40x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits940$115.5K$122.831.54x
66180Creation of shunt to improve eye fluid flow118$95.8K$811.651.40x
92020Examination of cornea and iris using lens device and slit lamp3.2K$80.8K$25.271.38x
0191TInternal insertion of eye fluid drainage device129$74.6K$578.182.95x
66821Removal of recurring cataract in lens capsule using laser243$73.9K$304.251.40x
66761Creation of eye fluid drainage tracts in iris using laser, per session218$61.4K$281.531.40x
92250Photography of the retina963$60.5K$62.841.51x
65855Laser repair to improve eye fluid flow, 1 or more sessions233$57.3K$245.791.43x
66174Dilation to improve eye fluid flow131$47.4K$361.992.24x
66710Destruction of lens tissue using laser103$35.5K$344.951.60x
92136Measurement of corneal curvature and depth of eye400$21.6K$53.991.34x
99205New patient office or other outpatient visit, typically 60 minutes115$19.4K$168.981.53x
76514Ultrasound of corneal structure and measurement1.0K$11.9K$11.571.76x

Markup Analysis

Charge-to-Payment Ratio

1.55x

This provider submits charges 1.55 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.55x means for every $100 Medicare pays, this provider initially charges $155. This is lower than the national average.

Location

San Francisco, 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.

Andrew Iwach (you)
$3.8M
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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