The Oklahoma Proton Foundation
The Oklahoma Proton Foundation reported $34.4 million in revenue and $35.8 million in expenses for calendar year 2025. Of every $100 it spent, $86.71 went to program services, $13.29 to management and general costs and $0.00 to fundraising. Its largest source of revenue was program service revenue such as fees, sales and contracts: 98.3% of the total. The highest compensation it reported for one person was $396,714 (Radiologist). 15 people received more than $100,000 in reportable compensation. Revenue rose 74% between 2021 and 2025. Source: Form 990, 2025.
Where $100 of spending went
Calendar year 2025 · Form 990, Part IX, line 25 · total expenses $36MFor context, the median across 5,634 covered health care charities: $86.19 programs, $13.81 management, $0.00 fundraising (medians computed separately, so they may not sum to $100).
Where $100 of revenue came from
Calendar year 2025 · Form 990, Part VIII · total revenue $34MThe 990 scorecard · same measures for every charity, no grades
| Measure | 2025 | Median |
|---|---|---|
| Program services Part IX 25(B) ÷ 25(A) | 86.7% | 85.6% |
| Management & general Part IX 25(C) ÷ 25(A) | 13.3% | 13.7% |
| Fundraising Part IX 25(D) ÷ 25(A) | 0.0% | 0.0% |
| Fundraising cost per $1 of contributions Part IX 25(D) ÷ Part VIII 1h | Not reported | $0.00 |
| Contributions & grants share of revenue Part VIII 1h ÷ 12 | 0.0% | 1.3% |
| Government grants share of revenue Part VIII 1e ÷ 12 | 0.0% | 0.1% |
| Program service revenue share Part VIII 2g ÷ 12 | 98.3% | 93.7% |
| Highest reported compensation Part VII-A, columns D–F | $396,714 | $975,831 |
| Highest compensation as share of expenses Part VII-A ÷ Part IX 25(A) | 1.11% | 1.34% |
| People paid over $100,000 Part VII, line 2 | 15 | 27 |
| Net assets, in months of expenses Part X 33(B) ÷ monthly expenses | -2.6 | 6.6 |
| Independent voting board members Part VI 1a–1b | 0 of 6 | 88.9% |
A median is context, not a target: hospitals, universities, food banks and grantmakers spend in very different ways. What these measures can and can't tell you.
What the money paid for, in its own words
2025 · Form 990, Part III · the three largest programs by expenseThe Oklahoma Proton Center, LLC, wholly owned by the Foundation, is a cancer center that has successfully treated thousands of patients from all over the United States and from fifteen different countries. Its doctors have experience treating patients with a wide variety of conditions, including breast cancer, lung cancer, prostate cancer, head and neck cancer, pediatric cancers, liver cancer, esophageal cancer and many other diagnoses. The facility features four treatment rooms with advanced in-room imaging capabilities
Highest reported compensation
2025 · Form 990, Part VII, Section A · roles as filed; names are in the filing, not here| Role | From this org | From related orgs | Other | Total |
|---|---|---|---|---|
| Radiologist Key employee, 40.00 hrs/week | $396,714 | $0 | $0 | $396,714 |
| Director of Physics Key employee, 40.00 hrs/week | $274,841 | $0 | $0 | $274,841 |
| Physicist Key employee, 40.00 hrs/week | $198,535 | $0 | $0 | $198,535 |
| Dosimetry Manager Key employee, 40.00 hrs/week | $171,286 | $0 | $0 | $171,286 |
| Dosimetrist Key employee, 40.00 hrs/week | $163,121 | $0 | $0 | $163,121 |
| Board Member Director/trustee, 0.50 hrs/week | $3,750 | $0 | $0 | $3,750 |
| Board Member Director/trustee, 0.50 hrs/week | $3,750 | $0 | $0 | $3,750 |
| Board Member Director/trustee, 0.50 hrs/week | $3,750 | $0 | $0 | $3,750 |
15 people received more than $100,000 in reportable compensation from The Oklahoma Proton Foundation (Part VII, line 2).
5 years of filings
Form 990, Parts I, VII, IX and X · each row is that year's own filing, linkedGovernance answers, as filed
2025 · the organization's own yes/no answers; explanations, if any, are in Schedule O of the filing · what each means- Voting board members, and how many are independent Part VI, lines 1a–1b6 · 0 independent
- Audited financial statements Part XII 2bYes
- Conflict-of-interest policy Part VI 12aYes
- Whistleblower policy Part VI 13Yes
- Document retention policy Part VI 14Yes
- Independent process for top executive pay Part VI 15aNo
- Board given the 990 before filing Part VI 11aYes
- Family or business ties among insiders Part VI 2No
- Aware of a significant diversion of assets Part VI 5No
- Excess benefit transaction with an insider Part IV 25aNo
- Loans to or from insiders outstanding Part IV 26No
- Lobbying, or a 501(h) election in effect Part IV 4No
- Over $15,000 of professional fundraising services Part IV 18No
- Over $10,000 of activity outside the U.S. Part IV 14bNo
- Employees Part I, line 583
- Volunteers Part I, line 61
Correct a figure or respond
Every number above is copied from The Oklahoma Proton Foundation's own Form 990. If one doesn't match the filing, that's our error and we'll fix it. If you work for The Oklahoma Proton Foundation, you can publish a response that is linked from this page.
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Of every $100 The Oklahoma Proton Foundation spent in 2025, $86.71 went to programs. The full breakdown, from its IRS Form 990:
Questions people ask
How much of The Oklahoma Proton Foundation's spending goes to programs?
In calendar year 2025, The Oklahoma Proton Foundation reported that 86.7% of its $35.8 million in expenses went to program services, 13.3% to management and general and 0.0% to fundraising (Form 990, Part IX).
How much does The Oklahoma Proton Foundation pay its top executive?
The largest total compensation The Oklahoma Proton Foundation reported for one person in calendar year 2025 was $396,714, for the role of Radiologist (Form 990, Part VII, including compensation from related organizations and other compensation).
Where does The Oklahoma Proton Foundation get its money?
Of $34.4 million in revenue in calendar year 2025, 0.0% came from contributions and grants and 98.3% from program service revenue (Form 990, Part VIII).
Is The Oklahoma Proton Foundation a registered charity?
The IRS lists EIN 84-4765097 as a 501(c)(3) organization (hospital or medical research organization), and its records show contributions as tax-deductible. Form 990 filings on record here cover tax years 2021, 2022, 2023, 2024, 2025. A filing shows what the organization reported; it doesn't by itself show whether a program works.
Sources
- 2025: Form 990 for calendar year 2025, object 202622329349301017 · read the filing
- 2024: Form 990 for calendar year 2024, object 202503229349302260 · read the filing
- 2023: Form 990 for calendar year 2023, object 202422579349300017 · read the filing
- 2022: Form 990 for calendar year 2022, object 202343189349303794 · read the filing
- 2021: Form 990 for calendar year 2021, object 202231689349301408 · read the filing
All filings for EIN 84-4765097: ProPublica Nonprofit Explorer · IRS Tax Exempt Organization Search. Figures are as the organization reported them; we have not audited them.