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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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Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. John Purviance
๐ŸŽ—๏ธ
MDIndividual

John Purviance, M.D.

NPI: 1437279692
Casper, WY
10 years of data
Radiation Oncology
$14.9M
Total Payments
40.0K
Beneficiaries
110.1K
Services
7.71x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$14.9M
Specialty median$300.5K

๐Ÿ“‹ Key Findings

1Billed $14.9M over 10 years
27.71x markup ratio (above median)
399th percentile in Radiation Oncology by payments
420 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $14.9M in total Medicare payments ranks in the 99th percentile of Radiation Oncology providers nationally.

Their average markup ratio of 7.71x is significantly above the specialty median of 5.0x.

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$1.1K$153.726.93x$911.21$1.8M13.6K4.4K
2015$1.1K$155.027.12x$948.58$1.3M9.4K3.6K
2016$985.90$141.426.97x$844.48$1.3M10.1K3.7K
2017$963.59$134.837.15x$828.76$1.0M8.7K3.5K
2018$1.0K$150.076.79x$869.19$1.3M9.9K3.7K
2019$1.0K$155.466.63x$875.44$1.6M11.7K4.3K
2020$1.0K$158.106.35x$845.11$1.6M12.4K4.2K
2021$1.0K$165.116.17x$853.29$1.5M10.6K3.7K
2022$1.0K$164.276.22x$858.17$1.7M12.0K4.4K
2023$1.1K$170.056.28x$897.26$1.8M11.7K4.6K

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  11.1x markup
$3.4M
11.5K services$293.15/svc11.07x markup
77301Management of modulation radiotherapy planningโš  6.8x markup
$1.4M
1.9K services$723.02/svc6.84x markup
78815Nuclear medicine study with CT imaging skull base to mid-thighโš  6.2x markup
$1.3M
2.1K services$624.15/svc6.23x markup
77427Radiation treatment management, 5 treatmentsโš  11.2x markup
$1.1M
7.1K services$151.60/svc11.24x markup
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19mevโš  4.4x markup
$847.0K
4.1K services$208.21/svc4.37x markup
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidanceโš  7.3x markup
$764.4K
788 services$970.01/svc7.33x markup
77014CT scan guidance for insertion of radiation therapy fieldsโš  6.2x markup
$697.3K
15.4K services$45.40/svc6.23x markup
77418Intensity modulated radiation treatment delivery per sessionโš  10.1x markup
$501.0K
1.6K services$309.29/svc10.12x markup
99214Established patient office or other outpatient, visit typically 25 minutesโš  5.1x markup
$499.6K
5.9K services$84.42/svc5.12x markup
A9552Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuriesโš  5.8x markup
$462.1K
2.1K services$223.15/svc5.79x markup
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10mevโš  4.0x markup
$415.3K
2.0K services$204.37/svc3.97x markup
77338Design and construction of device for radiation therapyโš  6.1x markup
$395.2K
2.0K services$197.11/svc6.09x markup
77336Radiation therapy consultation per weekโš  4.0x markup
$363.2K
5.7K services$63.76/svc3.99x markup
G6002Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapyโš  7.0x markup
$323.0K
11.3K services$28.52/svc6.99x markup
77290Management of radiation therapy, simulation, complexโš  6.9x markup
$282.6K
1.5K services$187.62/svc6.89x markup
77414Radiation treatment delivery, three or more treatment areasโš  4.9x markup
$253.2K
1.3K services$197.16/svc4.92x markup
77263Management of radiation therapy, complexโš  7.0x markup
$248.6K
1.9K services$132.52/svc7.04x markup
99205New patient office or other outpatient visit, typically 60 minutesโš  5.0x markup
$197.8K
1.2K services$164.87/svc5.04x markup
77280Management of radiation therapy simulation, simpleโš  4.8x markup
$147.7K
1.4K services$105.20/svc4.79x markup
99215Established patient office or other outpatient, visit typically 40 minutesโš  5.5x markup
$130.1K
1.1K services$116.12/svc5.53x 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 session11.5K$3.4M$293.1511.07x
77301Management of modulation radiotherapy planning1.9K$1.4M$723.026.84x
78815Nuclear medicine study with CT imaging skull base to mid-thigh2.1K$1.3M$624.156.23x
77427Radiation treatment management, 5 treatments7.1K$1.1M$151.6011.24x
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19mev4.1K$847.0K$208.214.37x
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidance788$764.4K$970.017.33x
77014CT scan guidance for insertion of radiation therapy fields15.4K$697.3K$45.406.23x
77418Intensity modulated radiation treatment delivery per session1.6K$501.0K$309.2910.12x
99214Established patient office or other outpatient, visit typically 25 minutes5.9K$499.6K$84.425.12x
A9552Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries2.1K$462.1K$223.155.79x
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10mev2.0K$415.3K$204.373.97x
77338Design and construction of device for radiation therapy2.0K$395.2K$197.116.09x
77336Radiation therapy consultation per week5.7K$363.2K$63.763.99x
G6002Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy11.3K$323.0K$28.526.99x
77290Management of radiation therapy, simulation, complex1.5K$282.6K$187.626.89x
77414Radiation treatment delivery, three or more treatment areas1.3K$253.2K$197.164.92x
77263Management of radiation therapy, complex1.9K$248.6K$132.527.04x
99205New patient office or other outpatient visit, typically 60 minutes1.2K$197.8K$164.875.04x
77280Management of radiation therapy simulation, simple1.4K$147.7K$105.204.79x
99215Established patient office or other outpatient, visit typically 40 minutes1.1K$130.1K$116.125.53x

Markup Analysis

Charge-to-Payment Ratio

7.71x

This provider submits charges 7.71 times higher than what Medicare actually pays.

What This Means

A markup ratio of 7.71x means for every $100 Medicare pays, this provider initially charges $771. This is higher than the national average.

Location

Casper, WY

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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