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Derek Gillies

Niagara Health System/Medical Physicist/Physicien médical

2025 Salary

$261,063

Total compensation $261,362, including $299 in taxable benefits.

Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page

At a Glance
2025

Employer Rank

#16

Niagara Health System

Years on List

3

2023–2025

Peak Salary

$261,063

2025

Full 2025 roster at Niagara Health System →·See where $261,063 ranks →

Total Compensation History

Total compensation by yearLine chart of 3 yearly values of total compensation, from $138,034 in 2023 to $261,362 in 2025.$100K$150K$200K$250K$300K202320242025
Total compensation, 2023–2025. Axis starts at $100,000, the Sunshine List disclosure threshold.

Full History
2023–2025

$137,664 in 2023 is worth about $143,886 in 2025 dollars.

Full salary history, by year
YearPositionSalary
2025Medical Physicist/Physicien médicalNiagara Health System$261,063Benefits $299Total $261,362
2024Medical Physicist/Physicien médicalNiagara Health System$159,923Benefits $251Total $160,175
2023Medical Physicist/Physicien médicalNiagara Health System$137,664Benefits $370Total $138,034

Take-Home Pay
(After Tax) · 2025 estimate

In 2025, Derek Gillies's $261,063 salary works out to roughly $161,274 after income tax, CPP and EI — an all-in deduction rate of about 38.2%. For comparison, the median Medical Physicist on the 2025 list was paid $232,757; this salary is about 12% more. Records under this name have appeared on the Sunshine List 3 years in all, first in 2023. After pension contributions (probably HOOPP in this sector), take-home is usually a further 7–10% lower.

Estimated net pay
~$161,274
Effective income-tax rate (excl. CPP/EI)
~36.1%
CPP + EI contributions
~$5,507
All-in deduction rate (incl. CPP/EI)
~38.2%
vs. 2025 Medical Physicist median
+12%

Where does $261,063 rank on the Sunshine List? →

Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.

Also at Niagara Health System
2025

View all 1,629 employees at Niagara Health System (2025) →