OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
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. Bradley Hamar
๐Ÿ‘๏ธ
ODIndividual

Bradley Hamar, OD

NPI: 1073090346
Yuba City, CA
6 years of data
Optometry
$6.4M
Total Payments
44.3K
Beneficiaries
74.0K
Services
2.18x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$6.4M
Specialty median$27.9K

๐Ÿ“‹ Key Findings

1Billed $6.4M over 6 years
22.18x markup ratio (above median)
399th percentile in Optometry by payments
4Payments surged 14129% in 2019
51 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $6.4M in total Medicare payments ranks in the 99th percentile of Optometry providers nationally.

Medicare payments to this provider grew 31378% from 2018 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 14129% in 2019

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
2018$132.50$63.752.08x$68.75$5.9K9796
2019$236.53$108.482.18x$128.05$842.5K9.9K5.9K
2020$257.52$116.402.21x$141.12$1.0M11.0K6.4K
2021$244.21$117.372.08x$126.84$1.3M15.2K9.5K
2022$226.47$101.572.23x$124.90$1.3M18.1K11.0K
2023$236.42$104.012.27x$132.41$1.9M19.8K11.4K

Top Procedures (20)

65778Insertion of amniotic membrane to eye surface
$3.0M
2.5K services$1.2K/svc2.07x markup
92012Eye and medical examination for diagnosis and treatment, established patient
$823.6K
12.0K services$68.40/svc2.17x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits
$477.5K
5.3K services$90.56/svc2.34x markup
68761Closure of tear duct opening using plug
$437.2K
6.3K services$69.41/svc2.98x markup
83861Microfluid analysis of tears
$434.8K
19.7K services$22.09/svc1.63x markup
92273Full field recording of retinal electrical responses to external stimuli with interpretation and report
$230.7K
2.1K services$108.09/svc2.07x markup
92134Diagnostic imaging of retina
$214.6K
7.2K services$29.82/svc2.32x markup
92283Extended color vision examination
$180.2K
4.2K services$42.77/svc2.18x markup
92083Measurement of field of vision during daylight conditions
$152.0K
3.4K services$44.74/svc2.41x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits
$112.5K
1.2K services$92.11/svc2.74x markup
92133Diagnostic imaging of optic nerve of eye
$83.5K
3.0K services$27.53/svc2.27x markup
92284Evaluation of eye adaptation to light and dark (rods and cones)
$72.3K
1.7K services$43.42/svc2.27x markup
92250Photography of the retina
$62.6K
2.1K services$29.90/svc2.57x markup
92201Extended examination of eye with drawing of retina
$22.2K
1.2K services$18.89/svc2.26x markup
92020Examination of cornea and iris using lens device and slit lamp
$15.1K
742 services$20.31/svc2.27x markup
92002Eye and medical examination for diagnosis and treatment, new patient
$8.8K
158 services$55.87/svc2.54x markup
92025Computerized mapping of corneal curvature
$6.6K
239 services$27.50/svc2.22x markup
99213Established patient office or other outpatient visit, typically 15 minutes
$6.1K
140 services$43.23/svc2.82x markup
92225Examination of eye by ophthalmoscope with retinal drawing
$5.9K
264 services$22.44/svc2.05x markup
76514Ultrasound of corneal structure and measurementโš  3.2x markup
$2.4K
298 services$8.08/svc3.18x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
65778Insertion of amniotic membrane to eye surface2.5K$3.0M$1.2K2.07x
92012Eye and medical examination for diagnosis and treatment, established patient12.0K$823.6K$68.402.17x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits5.3K$477.5K$90.562.34x
68761Closure of tear duct opening using plug6.3K$437.2K$69.412.98x
83861Microfluid analysis of tears19.7K$434.8K$22.091.63x
92273Full field recording of retinal electrical responses to external stimuli with interpretation and report2.1K$230.7K$108.092.07x
92134Diagnostic imaging of retina7.2K$214.6K$29.822.32x
92283Extended color vision examination4.2K$180.2K$42.772.18x
92083Measurement of field of vision during daylight conditions3.4K$152.0K$44.742.41x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits1.2K$112.5K$92.112.74x
92133Diagnostic imaging of optic nerve of eye3.0K$83.5K$27.532.27x
92284Evaluation of eye adaptation to light and dark (rods and cones)1.7K$72.3K$43.422.27x
92250Photography of the retina2.1K$62.6K$29.902.57x
92201Extended examination of eye with drawing of retina1.2K$22.2K$18.892.26x
92020Examination of cornea and iris using lens device and slit lamp742$15.1K$20.312.27x
92002Eye and medical examination for diagnosis and treatment, new patient158$8.8K$55.872.54x
92025Computerized mapping of corneal curvature239$6.6K$27.502.22x
99213Established patient office or other outpatient visit, typically 15 minutes140$6.1K$43.232.82x
92225Examination of eye by ophthalmoscope with retinal drawing264$5.9K$22.442.05x
76514Ultrasound of corneal structure and measurement298$2.4K$8.083.18x

Markup Analysis

Charge-to-Payment Ratio

2.18x

This provider submits charges 2.18 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.18x means for every $100 Medicare pays, this provider initially charges $218. This is higher than the national average.

Location

Yuba City, CA

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Related

Browse
โ† Back to Provider Directory
State
All providers in CA โ†’
Specialty
All Optometry providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

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.

Believe this data is inaccurate? Dispute this data