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. Daniel O'connor
๐Ÿ‘๏ธ
Individual

Daniel O'connor

NPI: 1194794958
Plymouth, MA
10 years of data
Ophthalmology
$7.1M
Total Payments
66.5K
Beneficiaries
83.8K
Services
5.37x
Markup Ratio

Peer Comparison

97th
percentile in specialty
This provider$7.1M
Specialty median$383.7K

๐Ÿ“‹ Key Findings

1Billed $7.1M over 10 years
25.37x markup ratio (above median)
397th percentile in Ophthalmology by payments
420 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $7.1M in total Medicare payments ranks in the 97th percentile of Ophthalmology providers nationally.

Their average markup ratio of 5.37x is significantly above the specialty median of 2.9x.

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$609.56$138.374.41x$471.19$1.0M7.7K5.9K
2015$484.41$89.835.39x$394.58$805.8K9.3K7.4K
2016$613.96$109.215.62x$504.75$837.7K9.7K7.7K
2017$486.19$88.525.49x$397.67$719.3K9.5K7.5K
2018$573.29$109.065.26x$464.23$715.0K9.4K7.5K
2019$456.20$80.895.64x$375.31$693.0K9.2K7.3K
2020$414.49$78.385.29x$336.11$475.8K6.3K5.2K
2021$462.90$79.355.83x$383.55$595.5K7.8K6.2K
2022$464.00$83.905.53x$380.10$547.9K7.4K5.9K
2023$480.80$84.475.69x$396.33$620.8K7.5K5.9K

Top Procedures (20)

66984Removal of cataract with insertion of lensโš  6.7x markup
$1.9M
15.1K services$127.62/svc6.74x markup
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visitsโš  4.3x markup
$1.4M
15.7K services$87.44/svc4.31x markup
92012Eye and medical examination for diagnosis and treatment, established patientโš  4.0x markup
$679.7K
9.9K services$68.79/svc3.99x markup
92136Measurement of corneal curvature and depth of eyeโš  6.8x markup
$678.5K
15.9K services$42.69/svc6.77x markup
66821Removal of recurring cataract in lens capsule using laserโš  4.8x markup
$668.5K
3.0K services$226.39/svc4.82x markup
99204New patient office or other outpatient visit, typically 45 minutesโš  4.9x markup
$637.8K
5.5K services$115.03/svc4.88x markup
99213Established patient office or other outpatient visit, typically 15 minutesโš  3.9x markup
$240.1K
4.4K services$54.09/svc3.89x markup
92083Measurement of field of vision during daylight conditionsโš  6.2x markup
$181.3K
3.9K services$46.87/svc6.16x markup
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visitsโš  4.0x markup
$173.0K
1.6K services$107.01/svc4.03x markup
99214Established patient office or other outpatient, visit typically 25 minutesโš  3.5x markup
$150.9K
1.9K services$77.88/svc3.54x markup
92133Diagnostic imaging of optic nerve of eyeโš  5.5x markup
$112.9K
3.9K services$29.18/svc5.50x markup
66982Removal of cataract with insertion of lensโš  5.8x markup
$82.2K
315 services$260.88/svc5.85x markup
65855Laser repair to improve eye fluid flow, 1 or more sessionsโš  7.5x markup
$71.1K
359 services$198.17/svc7.47x markup
66761Creation of eye fluid drainage tracts in iris using laser, per sessionโš  7.3x markup
$22.2K
115 services$192.92/svc7.32x markup
92020Examination of cornea and iris using lens device and slit lampโš  4.0x markup
$15.8K
741 services$21.34/svc3.96x markup
92134Diagnostic imaging of retinaโš  5.0x markup
$8.7K
276 services$31.68/svc5.05x markup
76514Ultrasound of corneal structure and measurementโš  7.5x markup
$7.4K
647 services$11.36/svc7.45x markup
99212Established patient office or other outpatient visit, typically 10 minutesโš  3.5x markup
$5.6K
188 services$29.74/svc3.47x markup
92002Eye and medical examination for diagnosis and treatment, new patientโš  4.6x markup
$4.5K
78 services$57.77/svc4.59x markup
92132Imaging of front third of eyeโš  9.4x markup
$4.0K
169 services$23.64/svc9.39x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
66984Removal of cataract with insertion of lens15.1K$1.9M$127.626.74x
92014Eye and medical examination for diagnosis and treatment, established patient, 1 or more visits15.7K$1.4M$87.444.31x
92012Eye and medical examination for diagnosis and treatment, established patient9.9K$679.7K$68.793.99x
92136Measurement of corneal curvature and depth of eye15.9K$678.5K$42.696.77x
66821Removal of recurring cataract in lens capsule using laser3.0K$668.5K$226.394.82x
99204New patient office or other outpatient visit, typically 45 minutes5.5K$637.8K$115.034.88x
99213Established patient office or other outpatient visit, typically 15 minutes4.4K$240.1K$54.093.89x
92083Measurement of field of vision during daylight conditions3.9K$181.3K$46.876.16x
92004Eye and medical examination for diagnosis and treatment, new patient, 1 or more visits1.6K$173.0K$107.014.03x
99214Established patient office or other outpatient, visit typically 25 minutes1.9K$150.9K$77.883.54x
92133Diagnostic imaging of optic nerve of eye3.9K$112.9K$29.185.50x
66982Removal of cataract with insertion of lens315$82.2K$260.885.85x
65855Laser repair to improve eye fluid flow, 1 or more sessions359$71.1K$198.177.47x
66761Creation of eye fluid drainage tracts in iris using laser, per session115$22.2K$192.927.32x
92020Examination of cornea and iris using lens device and slit lamp741$15.8K$21.343.96x
92134Diagnostic imaging of retina276$8.7K$31.685.05x
76514Ultrasound of corneal structure and measurement647$7.4K$11.367.45x
99212Established patient office or other outpatient visit, typically 10 minutes188$5.6K$29.743.47x
92002Eye and medical examination for diagnosis and treatment, new patient78$4.5K$57.774.59x
92132Imaging of front third of eye169$4.0K$23.649.39x

Markup Analysis

Charge-to-Payment Ratio

5.37x

This provider submits charges 5.37 times higher than what Medicare actually pays.

What This Means

A markup ratio of 5.37x means for every $100 Medicare pays, this provider initially charges $537. This is higher than the national average.

Location

Plymouth, MA

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 MA for peer comparison.

Daniel O'connor (you)
$7.1M
Torsten Wiegand, MD
$49.8M
David Reed, M.D.
$44.2M
Chirag Shah, MD
$34.3M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Torsten Wiegand, MDBoston, MA$49.8Mโœ“ Clear
David Reed, M.D.Plymouth, MA$44.2Mโœ“ Clear
Chirag Shah, MDBoston, MA$34.3Mโœ“ Clear

Related

Browse
โ† Back to Provider Directory
State
All providers in MA โ†’
Specialty
All Ophthalmology 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