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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. Garlan Lo
๐Ÿ‘๏ธ
MDIndividual

Garlan Lo, M.D.

NPI: 1043276140
Hacienda Heights, CA
10 years of data
Ophthalmology
$8.5M
Total Payments
77.5K
Beneficiaries
101.5K
Services
1.57x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$8.5M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $8.5M over 10 years
21.57x markup ratio
398th percentile in Ophthalmology by payments
4Payments surged 52% in 2021
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $8.5M 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

๐Ÿ“ˆ

Notable: Payments increased 52% in 2021

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
2014$302.19$207.551.46x$94.64$886.9K9.5K7.9K
2015$286.42$190.891.50x$95.53$842.4K9.2K7.3K
2016$263.88$179.421.47x$84.46$907.1K10.0K7.8K
2017$287.17$167.691.71x$119.48$880.2K10.7K8.1K
2018$267.46$150.001.78x$117.46$857.8K10.4K8.1K
2019$356.00$223.531.59x$132.47$901.4K10.8K8.3K
2020$331.02$208.451.59x$122.57$526.4K6.7K5.3K
2021$286.45$170.591.68x$115.86$800.6K9.9K7.4K
2022$389.18$233.271.67x$155.91$886.4K11.9K8.5K
2023$412.13$243.771.69x$168.36$978.5K12.3K8.8K

Top Procedures (20)

92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$2.0M
19.5K services$100.61/svc1.48x markup
92012Eye and medical examination for diagnosis and treatment, established patient
$1.2M
16.3K services$73.51/svc1.44x markup
66984Removal of cataract with insertion of lens
$1.2M
2.3K services$500.93/svc1.63x markup
92083Measurement of field of vision during daylight conditions
$555.7K
10.2K services$54.52/svc1.54x markup
92250Photography of the retina
$517.8K
10.6K services$49.00/svc1.80x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$478.0K
4.2K services$114.41/svc1.54x markup
92134Diagnostic imaging of retina
$472.3K
13.7K services$34.57/svc1.71x markup
67028Injection of drug into eye
$428.6K
4.3K services$100.42/svc1.38x markup
66821Removal of recurring cataract in lens capsule using laser
$230.9K
789 services$292.67/svc1.62x markup
J9035Injection, bevacizumab, 10 mg
$221.3K
4.2K services$52.83/svc1.54x markup
92133Diagnostic imaging of optic nerve of eye
$211.0K
6.6K services$31.78/svc1.79x markup
65820Incision to improve eye fluid flow
$173.4K
267 services$649.57/svc1.44x markup
0191TInternal insertion of eye fluid drainage device
$169.8K
360 services$471.72/svc1.91x markup
92136Measurement of corneal curvature and depth of eye
$136.8K
4.8K services$28.70/svc1.92x markup
67904Repair of tendon of upper eyelid
$100.8K
106 services$950.48/svc1.36x markup
66982Removal of cataract with insertion of lens
$72.7K
121 services$600.59/svc1.63x markup
65778Placement of amniotic membrane on eye surface for wound healing
$70.2K
55 services$1.3K/svc1.41x markup
66174Dilation to improve eye fluid flow
$60.4K
86 services$702.11/svc1.71x markup
J0178Injection, aflibercept, 1 mg
$57.0K
83 services$687.25/svc1.50x markup
68761Closure of tear duct opening using plug
$31.2K
171 services$182.18/svc1.86x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits19.5K$2.0M$100.611.48x
92012Eye and medical examination for diagnosis and treatment, established patient16.3K$1.2M$73.511.44x
66984Removal of cataract with insertion of lens2.3K$1.2M$500.931.63x
92083Measurement of field of vision during daylight conditions10.2K$555.7K$54.521.54x
92250Photography of the retina10.6K$517.8K$49.001.80x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits4.2K$478.0K$114.411.54x
92134Diagnostic imaging of retina13.7K$472.3K$34.571.71x
67028Injection of drug into eye4.3K$428.6K$100.421.38x
66821Removal of recurring cataract in lens capsule using laser789$230.9K$292.671.62x
J9035Injection, bevacizumab, 10 mg4.2K$221.3K$52.831.54x
92133Diagnostic imaging of optic nerve of eye6.6K$211.0K$31.781.79x
65820Incision to improve eye fluid flow267$173.4K$649.571.44x
0191TInternal insertion of eye fluid drainage device360$169.8K$471.721.91x
92136Measurement of corneal curvature and depth of eye4.8K$136.8K$28.701.92x
67904Repair of tendon of upper eyelid106$100.8K$950.481.36x
66982Removal of cataract with insertion of lens121$72.7K$600.591.63x
65778Placement of amniotic membrane on eye surface for wound healing55$70.2K$1.3K1.41x
66174Dilation to improve eye fluid flow86$60.4K$702.111.71x
J0178Injection, aflibercept, 1 mg83$57.0K$687.251.50x
68761Closure of tear duct opening using plug171$31.2K$182.181.86x

Markup Analysis

Charge-to-Payment Ratio

1.57x

This provider submits charges 1.57 times higher than what Medicare actually pays.

What This Means

A markup ratio of 1.57x means for every $100 Medicare pays, this provider initially charges $157. This is lower than the national average.

Location

Hacienda Heights, 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.

Garlan Lo (you)
$8.5M
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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