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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. Grenville Jones
๐ŸŽ—๏ธ
MDIndividual

Grenville Jones, MD

NPI: 1710082672
Augusta, ME
10 years of data
Radiation Oncology
$7.4M
Total Payments
18.6K
Beneficiaries
46.8K
Services
3.5x
Markup Ratio

Peer Comparison

98th
percentile in specialty
This provider$7.4M
Specialty median$300.5K

๐Ÿ“‹ Key Findings

1Billed $7.4M over 10 years
23.5x markup ratio (above median)
398th percentile in Radiation Oncology by payments
4Payments surged 810% in 2018
516 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $7.4M in total Medicare payments ranks in the 98th percentile of Radiation Oncology providers nationally.

Medicare payments to this provider grew 551% 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 810% in 2018

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$233.56$92.292.53x$141.27$153.1K2.0K991
2015$240.43$94.102.56x$146.33$172.2K2.4K1.1K
2016$270.74$97.742.77x$173.00$182.8K2.6K1.2K
2017$406.56$120.713.37x$285.85$174.0K2.1K1.0K
2018$693.93$187.343.70x$506.59$1.6M9.5K3.1K
2019$654.59$188.583.47x$466.01$1.2M7.0K2.5K
2020$812.48$235.443.45x$577.04$907.9K5.0K2.0K
2021$953.28$274.543.47x$678.74$833.4K4.0K1.8K
2022$682.97$193.353.53x$489.62$1.2M6.7K2.7K
2023$693.86$194.003.58x$499.86$995.9K5.4K2.2K

Top Procedures (20)

G6015Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment sessionโš  4.0x markup
$2.0M
7.9K services$255.05/svc4.01x markup
77014CT scan guidance for insertion of radiation therapy fieldsโš  3.5x markup
$775.7K
9.6K services$80.87/svc3.48x markup
77301Management of modulation radiotherapy planningโš  3.2x markup
$671.3K
622 services$1.1K/svc3.21x markup
77427Radiation treatment management, 5 treatments
$615.9K
4.3K services$142.54/svc2.93x markup
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mevโš  3.2x markup
$555.3K
3.1K services$181.07/svc3.20x markup
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidanceโš  4.0x markup
$385.2K
511 services$753.76/svc3.99x markup
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mevโš  3.1x markup
$344.9K
1.9K services$184.27/svc3.15x markup
77290Management of radiation therapy, simulation, complexโš  3.2x markup
$310.2K
1.2K services$249.37/svc3.16x markup
77338Design and construction of device for radiation therapyโš  3.3x markup
$208.3K
676 services$308.20/svc3.28x markup
99205New patient office or other outpatient visit, typically 60 minutes
$170.5K
1.2K services$145.88/svc2.98x markup
77263Management of radiation therapy, complex
$166.4K
1.3K services$125.32/svc2.99x markup
77336Radiation therapy consultation per weekโš  3.0x markup
$163.5K
2.8K services$57.64/svc3.04x markup
77334Radiation treatment devices, design and construction, complexโš  3.5x markup
$162.0K
2.1K services$75.86/svc3.49x markup
77295Management of radiation therapy, 3Dโš  3.9x markup
$154.8K
602 services$257.18/svc3.94x markup
78815Nuclear medicine study with CT imaging skull base to mid-thighโš  4.0x markup
$150.6K
150 services$1.0K/svc4.05x markup
77435Stereotactic radiation treatment management of 1 or more lesions using imaging guidance, per treatment courseโš  3.1x markup
$97.4K
199 services$489.54/svc3.11x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$76.3K
699 services$109.17/svc2.80x markup
77280Management of radiation therapy simulation, simpleโš  3.2x markup
$65.2K
783 services$83.26/svc3.24x markup
77470Special radiation treatment procedureโš  5.4x markup
$60.6K
627 services$96.70/svc5.39x markup
77300Calculation of radiation therapy doseโš  3.1x markup
$54.4K
1.4K services$39.48/svc3.10x 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 session7.9K$2.0M$255.054.01x
77014CT scan guidance for insertion of radiation therapy fields9.6K$775.7K$80.873.48x
77301Management of modulation radiotherapy planning622$671.3K$1.1K3.21x
77427Radiation treatment management, 5 treatments4.3K$615.9K$142.542.93x
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev3.1K$555.3K$181.073.20x
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidance511$385.2K$753.763.99x
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev1.9K$344.9K$184.273.15x
77290Management of radiation therapy, simulation, complex1.2K$310.2K$249.373.16x
77338Design and construction of device for radiation therapy676$208.3K$308.203.28x
99205New patient office or other outpatient visit, typically 60 minutes1.2K$170.5K$145.882.98x
77263Management of radiation therapy, complex1.3K$166.4K$125.322.99x
77336Radiation therapy consultation per week2.8K$163.5K$57.643.04x
77334Radiation treatment devices, design and construction, complex2.1K$162.0K$75.863.49x
77295Management of radiation therapy, 3D602$154.8K$257.183.94x
78815Nuclear medicine study with CT imaging skull base to mid-thigh150$150.6K$1.0K4.05x
77435Stereotactic radiation treatment management of 1 or more lesions using imaging guidance, per treatment course199$97.4K$489.543.11x
99215Established patient office or other outpatient, visit typically 40 minutes699$76.3K$109.172.80x
77280Management of radiation therapy simulation, simple783$65.2K$83.263.24x
77470Special radiation treatment procedure627$60.6K$96.705.39x
77300Calculation of radiation therapy dose1.4K$54.4K$39.483.10x

Markup Analysis

Charge-to-Payment Ratio

3.5x

This provider submits charges 3.5 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.5x means for every $100 Medicare pays, this provider initially charges $350. This is higher than the national average.

Location

Augusta, ME

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.

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