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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. Samuel Day
๐ŸŽ—๏ธ
MDIndividual

Samuel Day, MD, PHD

NPI: 1811304652
Tucson, AZ
5 years of data
Radiation Oncology
$3.9M
Total Payments
5.8K
Beneficiaries
16.2K
Services
3.99x
Markup Ratio

Peer Comparison

96th
percentile in specialty
This provider$3.9M
Specialty median$300.5K

๐Ÿ“‹ Key Findings

1Billed $3.9M over 5 years
23.99x markup ratio (above median)
396th percentile in Radiation Oncology by payments
4Payments surged 231% in 2020
518 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $3.9M in total Medicare payments ranks in the 96th percentile of Radiation Oncology providers nationally.

Medicare payments to this provider grew 472% from 2019 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 231% in 2020

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
2019$752.54$238.613.15x$513.93$213.2K993276
2020$810.02$255.303.17x$554.72$706.0K3.3K966
2021$876.93$290.583.02x$586.35$561.9K2.5K704
2022$1.3K$331.903.93x$973.31$1.2M4.7K2.0K
2023$1.2K$300.374.01x$904.43$1.2M4.7K1.9K

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  4.8x markup
$1.1M
4.0K services$282.20/svc4.76x markup
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidanceโš  4.1x markup
$506.0K
601 services$841.98/svc4.06x markup
77014CT scan guidance for insertion of radiation therapy fieldsโš  3.8x markup
$418.7K
4.4K services$94.85/svc3.79x markup
78815Nuclear medicine study from skull base to mid-thigh with ct scanโš  3.8x markup
$399.2K
333 services$1.2K/svc3.81x markup
77301Management of modulation radiotherapy planningโš  3.8x markup
$305.3K
215 services$1.4K/svc3.78x markup
77290Management of radiation therapy, simulation, complexโš  3.3x markup
$156.4K
429 services$364.68/svc3.26x markup
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mevโš  3.3x markup
$141.2K
730 services$193.40/svc3.29x markup
77427Radiation treatment management, 5 treatmentsโš  3.5x markup
$114.9K
768 services$149.56/svc3.46x markup
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mevโš  3.2x markup
$89.5K
464 services$192.92/svc3.22x markup
77338Design and construction of device for radiation therapyโš  3.7x markup
$79.7K
221 services$360.65/svc3.71x markup
A9552Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries
$78.5K
314 services$249.99/svc1.67x markup
99205New patient office or other outpatient visit, typically 60 minutesโš  3.3x markup
$49.4K
295 services$167.50/svc3.32x markup
77336Radiation therapy consultation per weekโš  3.5x markup
$46.6K
732 services$63.71/svc3.53x markup
77263Management of radiation therapy, complexโš  3.4x markup
$40.8K
312 services$130.73/svc3.42x markup
78816Nuclear medicine study whole body with ct scanโš  3.8x markup
$37.7K
31 services$1.2K/svc3.75x markup
77334Radiation treatment devices, design and construction, complexโš  3.6x markup
$32.7K
336 services$97.47/svc3.62x markup
99215Established patient outpatient visit, total time 40-54 minutesโš  3.0x markup
$30.3K
223 services$136.06/svc3.01x markup
77435Management of cranial lesion surgery using radiation over multiple sessionsโš  3.9x markup
$28.9K
58 services$498.54/svc3.88x markup
55874Injection of biodegradable material next to prostateโš  4.0x markup
$25.3K
11 services$2.3K/svc3.95x markup
77280Management of radiation therapy simulation, simple
$23.8K
110 services$216.19/svc2.69x 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 session4.0K$1.1M$282.204.76x
77373Stereotactic body radiation therapy 1 or more lesions using imaging guidance601$506.0K$841.984.06x
77014CT scan guidance for insertion of radiation therapy fields4.4K$418.7K$94.853.79x
78815Nuclear medicine study from skull base to mid-thigh with ct scan333$399.2K$1.2K3.81x
77301Management of modulation radiotherapy planning215$305.3K$1.4K3.78x
77290Management of radiation therapy, simulation, complex429$156.4K$364.683.26x
G6012Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev730$141.2K$193.403.29x
77427Radiation treatment management, 5 treatments768$114.9K$149.563.46x
G6013Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev464$89.5K$192.923.22x
77338Design and construction of device for radiation therapy221$79.7K$360.653.71x
A9552Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries314$78.5K$249.991.67x
99205New patient office or other outpatient visit, typically 60 minutes295$49.4K$167.503.32x
77336Radiation therapy consultation per week732$46.6K$63.713.53x
77263Management of radiation therapy, complex312$40.8K$130.733.42x
78816Nuclear medicine study whole body with ct scan31$37.7K$1.2K3.75x
77334Radiation treatment devices, design and construction, complex336$32.7K$97.473.62x
99215Established patient outpatient visit, total time 40-54 minutes223$30.3K$136.063.01x
77435Management of cranial lesion surgery using radiation over multiple sessions58$28.9K$498.543.88x
55874Injection of biodegradable material next to prostate11$25.3K$2.3K3.95x
77280Management of radiation therapy simulation, simple110$23.8K$216.192.69x

Markup Analysis

Charge-to-Payment Ratio

3.99x

This provider submits charges 3.99 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.99x means for every $100 Medicare pays, this provider initially charges $399. This is higher than the national average.

Location

Tucson, AZ

Provider Verification

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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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