Nonprofit · EIN 27-3064209
PROTON THERAPY CENTER LLC
Tax-exempt · KNOXVILLE, TN 37909
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $26,750 | $5,113 | $21,637 | $15,670 | $0 | $15,670 |
| December 31, 2024 | 990 | $98,273,389 | $10,594 | $98,262,795 | $19,033 | $0 | $19,033 |
| December 31, 2023 | 990 | $0 | $7,545,084 | -$7,545,084 | $22,103,901 | $120,347,663 | -$98,243,762 |
| December 31, 2021 | 990 | $20,990,797 | $31,442,549 | -$10,451,752 | $87,350,051 | $138,554,350 | -$51,204,299 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $0
- Other revenue
- $26,750
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $3,430
- Management and general (functional)
- $5,113
Balance sheet and other
- Total assets, start of year
- $19,033
- Total assets, end of year
- $15,670
- Total liabilities, end of year
- $0
- Net assets, end of year
- $15,670
- Gross receipts
- $26,750
- Employees
- 0
- Volunteers
- 0
- Year formed
- 2010
- State of legal domicile
- TN
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TERRY DOUGLASS | DIRECTOR/CHAIRMAN Trustee or director | 1 | $0 |
| SCOTT HAMILTON | DIRECTOR Trustee or director | 1 | $0 |
| JAMES BLANKEMEYER | DIRECTOR Trustee or director | 1 | $0 |
| MARY LOU DUBOIS | FORMER PRESIDENT Officer | 1 | $0 |
990 for the year ended December 31, 2024: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| MARY LOU DUBOIS | FORMER PRESIDENT Officer | 1 | $0 |
990 for the year ended December 31, 2023: 1 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| MARY LOU DUBOIS | FORMER PRESIDENT Former | 0 | $0 | $122,622 | $3,078 |
990 for the year ended December 31, 2021: 5 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| MARY LOU DUBOIS | PRESIDENT Officer | 40 | $334,448 | $19,630 |
| TERRY DOUGLASS | DIRECTOR/CHAIRMAN Trustee or director, Officer | 1 | $0 | $0 |
| SCOTT HAMILTON | DIRECTOR Trustee or director | 1 | $0 | $0 |
| JAMES BLANKEMEYER | DIRECTOR Trustee or director | 1 | $0 | $0 |
| ROBERT VINCILL | TREASURER Officer | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 6450 PROVISION CARES WAY, KNOXVILLE, TN 37909-2544
- In care of
- % SLOAN ISCHE
- Principal officer (990 for 2025)
- MARY LOU DUBOIS, 6450 PROVISION CARES WAY, KNOXVILLE, TN 37909
- Signed the 990
- MARY LOU DUBOIS, PRESIDENT
- Phone
- (865) 862-1600
- Website
- WWW.PROVISIONPROTON.COM
- Return prepared by
- PYA P C
Mission
THE ORGANIZATION OPERATED A PROTON THERAPY CANCER TREATMENT CENTER IN KNOXVILLE, TENNESSEE, AND SERVICES A MULTI-STATE AREA IN THE SOUTHEASTERN UNITED STATES. PROTON THERAPY IS THE CUTTING EDGE OF RADIATION CANCER TREATMENT. IT IS AN ADVANCED FORM OF RADIATION THAT ALLOWS FOR PRECISION TREATMENT THAT LEAVES SURROUNDING TISSUE UNHARMED AND REDUCES SIDE EFFECTS.PROTON THERAPY CENTER'S GOAL IS TO HELP MAKE PROTON TREATMENT OPTIONS AVAILABLE FOR AS MANY PATIENTS AS POSSIBLE. OUR 90,000 SQ. FOOT FACILITY AND THE SURROUNDING DOWELL SPRINGS CAMPUS PROVIDE A NURTURING OASIS FOR PATIENTS AS THEY RECEIVE TREATMENT.WITH A WEALTH OF RESOURCES, COMPREHENSIVE CARE AND KNOWLEDGEABLE SPECIALISTS WITH YEARS OF EXPERIENCE, PROTON THERAPY CENTER SERVES AS AN IDEAL OPTION FOR PATIENTS IN NEED OF CANCER TREATMENT.THE ORGANIZATION WENT THROUGH A BANKRUPTCY FORECLOSURE AND IS IN THE PROCESS OF DISSOLVING.
Program accomplishments
- THE ORGANIZATION OPERATED A PROTON THERAPY CENTER IN KNOXVILLE, TENNESSEE, AND SERVICES A MULTI-STATE AREA IN THE SOUTHEASTERN UNITED STATES. THE ORGANIZATION PROVIDED COMPREHENSIVE CANCER TREATMENT UTILIZING THE LATEST AND MOST ADVANCED TREATMENT OPTIONS AVAILABLE. THE PROTON THERAPY CENTER TEAM IS COMPRISED OF LEADING SPECIALISTS, CLINICIANS AND EXPERTS WITH MORE THAN 50 YEARS OF PHYSICIAN AND IMAGING ONCOLOGY EXPERIENCE, AND THEY ARE PASSIONATE ABOUT PROVIDING EFFECTIVE AND PERSONAL CARE TO EACH PATIENT SERVED. THE ORGANIZATION WENT THROUGH A BANKRUPTCY FORECLOSURE AND IS IN THE PROCESS OF DISSOLVING.
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 27-3064209
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Hospital or medical research organization
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2012
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Health care (E24)
- Assets (IRS master file)
- $15,670
- Income (IRS master file)
- $26,750
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $26,750 | $5,113 | $15,670 | XML |
| 990 | December 2024 | $98,273,389 | $10,594 | $19,033 | XML |
| 990 | December 2023 | $0 | $7,545,084 | $22,103,901 | XML |
| 990 | December 2022 | -$17,887,682 | $21,606,697 | $23,729,500 | IRS |
| 990 | December 2021 | $20,990,797 | $31,442,549 | $87,350,051 | XML |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 27-3064209).
Questions about PROTON THERAPY CENTER LLC
- What is the EIN of PROTON THERAPY CENTER LLC?
- The employer identification number (EIN) of PROTON THERAPY CENTER LLC is 27-3064209.
- Is PROTON THERAPY CENTER LLC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2012.
- Are donations to PROTON THERAPY CENTER LLC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does PROTON THERAPY CENTER LLC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of PROTON THERAPY CENTER LLC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did PROTON THERAPY CENTER LLC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of PROTON THERAPY CENTER LLC?
- The 990 for the year ended December 31, 2025 names MARY LOU DUBOIS.
- Who are the officers and directors of PROTON THERAPY CENTER LLC?
- The 990 for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does PROTON THERAPY CENTER LLC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $26,750, expenses of $5,113 and total assets of $15,670 at year end.
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