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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. Gregory Gagnon
๐ŸŽ—๏ธ
Individual

Gregory Gagnon

NPI: 1407854268
Frederick, MD
10 years of data
Radiation Oncology
$12.1M
Total Payments
25.0K
Beneficiaries
73.9K
Services
2.75x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$12.1M
Specialty median$300.5K

๐Ÿ“‹ Key Findings

1Billed $12.1M over 10 years
22.75x markup ratio (above median)
399th percentile in Radiation Oncology by payments
4Payments surged 192% in 2016
510 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $12.1M in total Medicare payments ranks in the 99th percentile of Radiation Oncology providers nationally.

Medicare payments to this provider grew 386% 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

๐Ÿ“ˆ

Notable: Payments increased 192% in 2016

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$409.91$117.143.50x$292.77$282.5K4.0K1.8K
2015$369.35$113.803.25x$255.55$343.2K4.7K2.2K
2016$487.95$171.012.85x$316.94$1.0M7.4K2.8K
2017$526.52$189.142.78x$337.38$1.5M8.5K2.5K
2018$523.72$189.272.77x$334.45$1.3M7.3K2.3K
2019$487.04$174.272.79x$312.77$1.5M7.9K2.7K
2020$503.41$171.102.94x$332.31$1.5M7.9K2.6K
2021$512.41$179.792.85x$332.62$1.6M8.5K2.8K
2022$527.65$181.342.91x$346.31$1.7M9.2K2.8K
2023$534.59$182.672.93x$351.92$1.4M8.4K2.5K

Top Procedures (20)

G6015Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session
$3.8M
12.6K services$300.37/svc2.50x markup
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidance
$2.2M
2.2K services$1.0K/svc2.60x markup
77301Management of modulation radiotherapy planningโš  3.0x markup
$862.3K
1.1K services$758.43/svc3.02x markup
77427Radiation treatment management, 5 treatmentsโš  3.1x markup
$836.3K
5.5K services$152.13/svc3.14x markup
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev
$727.8K
3.4K services$213.55/svc2.60x markup
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev
$680.5K
3.2K services$213.72/svc2.76x markup
77435Stereotactic radiation treatment management of 1 or more lesions using imaging guidance, per treatment courseโš  3.1x markup
$347.2K
671 services$517.43/svc3.11x markup
77336Radiation therapy consultation per week
$287.1K
4.2K services$67.56/svc2.56x markup
G6002Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapyโš  3.0x markup
$274.8K
15.0K services$18.33/svc3.01x markup
77263Management of radiation therapy, complexโš  3.2x markup
$252.7K
1.9K services$132.91/svc3.19x markup
77338Design and construction of device for radiation therapyโš  3.6x markup
$209.4K
1.1K services$198.52/svc3.61x markup
77295Management of radiation therapy, 3Dโš  3.3x markup
$196.2K
1.0K services$188.63/svc3.29x markup
99204New patient office or other outpatient visit, typically 45 minutes
$191.9K
1.6K services$123.47/svc2.78x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$187.9K
2.4K services$77.27/svc2.60x markup
77290Management of radiation therapy, simulation, complex
$184.0K
1.4K services$128.29/svc2.93x markup
77334Radiation treatment devices, design and construction, complexโš  3.5x markup
$136.7K
2.6K services$52.54/svc3.53x markup
77014CT scan guidance for insertion of radiation therapy fieldsโš  3.2x markup
$116.0K
3.2K services$36.74/svc3.23x markup
77280Management of radiation therapy simulation, simple
$104.5K
1.6K services$65.37/svc2.88x markup
G6017Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment
$97.8K
1.8K services$54.14/svc2.38x markup
77300Calculation of radiation therapy doseโš  3.5x markup
$66.6K
2.5K services$26.85/svc3.47x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
G6015Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session12.6K$3.8M$300.372.50x
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidance2.2K$2.2M$1.0K2.60x
77301Management of modulation radiotherapy planning1.1K$862.3K$758.433.02x
77427Radiation treatment management, 5 treatments5.5K$836.3K$152.133.14x
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev3.4K$727.8K$213.552.60x
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev3.2K$680.5K$213.722.76x
77435Stereotactic radiation treatment management of 1 or more lesions using imaging guidance, per treatment course671$347.2K$517.433.11x
77336Radiation therapy consultation per week4.2K$287.1K$67.562.56x
G6002Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy15.0K$274.8K$18.333.01x
77263Management of radiation therapy, complex1.9K$252.7K$132.913.19x
77338Design and construction of device for radiation therapy1.1K$209.4K$198.523.61x
77295Management of radiation therapy, 3D1.0K$196.2K$188.633.29x
99204New patient office or other outpatient visit, typically 45 minutes1.6K$191.9K$123.472.78x
99214Established patient office or other outpatient, visit typically 25 minutes2.4K$187.9K$77.272.60x
77290Management of radiation therapy, simulation, complex1.4K$184.0K$128.292.93x
77334Radiation treatment devices, design and construction, complex2.6K$136.7K$52.543.53x
77014CT scan guidance for insertion of radiation therapy fields3.2K$116.0K$36.743.23x
77280Management of radiation therapy simulation, simple1.6K$104.5K$65.372.88x
G6017Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment1.8K$97.8K$54.142.38x
77300Calculation of radiation therapy dose2.5K$66.6K$26.853.47x

Markup Analysis

Charge-to-Payment Ratio

2.75x

This provider submits charges 2.75 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.75x means for every $100 Medicare pays, this provider initially charges $275. This is higher than the national average.

Location

Frederick, MD

Provider Verification

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

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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.

Believe this data is inaccurate? Dispute this data