Nonprofit · EIN 26-0900479
DENALI ONCOLOGY GROUP
Tax-exempt · WASILLA, AK 99687
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $204,704 | $165,916 | $38,788 | $499,208 | $0 | $499,208 |
| December 31, 2024 | 990-EZ | $167,525 | $145,764 | $21,761 | $460,420 | $0 | $460,420 |
| December 31, 2023 | 990-EZ | $105,000 | $51,309 | $53,691 | $438,659 | $0 | $438,659 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $204,195
- Membership dues
- $204,195
- Program service revenue
- $0
- Investment income
- $509
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $3,680
- Compensation of officers, directors and key employees
- $55,000
- Salaries, compensation and benefits (total)
- $55,000
- Professional fundraising fees
- $0
- Accounting fees
- $564
- Travel
- $18,414
Balance sheet and other
- Total assets, start of year
- $460,420
- Total assets, end of year
- $499,208
- Total liabilities, end of year
- $0
- Net assets, end of year
- $499,208
- Net assets without donor restrictions
- $499,208
- Gross receipts
- $204,704
- Employees
- 0
- Volunteers
- 7
- Year formed
- 2007
- State of legal domicile
- AK
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 |
|---|---|---|---|
| TAMMY THIEL | EXECUTIVE DIRECTOR Officer | 20 | $55,000 |
| MATTHEW OLNES MD | PRESIDENT Trustee or director, Officer | 2 | $0 |
| STEPHEN SETTLE MD | PRESIDENT-ELECT Trustee or director, Officer | 2 | $0 |
| ANU MARIAMPILLAE MD | VICE PRESIDENT Trustee or director, Officer | 2 | $0 |
| WILLIAM PERRY MD | SECRETARY Trustee or director, Officer | 2 | $0 |
| MARILYN KONTE RN | TREASURER Trustee or director, Officer | 2 | $0 |
| ANDREW COX MD | DIRECTOR Trustee or director | 2 | $0 |
| MARY KLIX MD | IMMEDIATE-PAST PRESIDENT Trustee or director | 2 | $0 |
990-EZ for the year ended December 31, 2024: 7 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAMMY THIEL | EXECUTIVE DIRECTOR | 20 | $55,000 |
| MARY KLIX MD | PRESIDENT | 2 | $0 |
| MATTHEW OLNES MD | PRESIDENT-ELECT | 2 | $0 |
| STEPHEN SETTLE MD | VICE PRESIDENT | 2 | $0 |
| WILLIAM PERRY MD | SECRETARY | 2 | $0 |
| MARILYN KONTE RN | TREASURER | 2 | $0 |
| ANDREW COX MD | DIRECTOR | 2 | $0 |
990-EZ for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAMMY THIEL | EXECUTIVE DIRECTOR | 20 | $0 |
| MARY KLIX MD | PRESIDENT | 2 | $0 |
| STEPHEN SETTLE | VICE PRESIDENT | 2 | $0 |
| MATTHEW OLNES MD | VICE PRESIDENT | 2 | $0 |
| WILLIAM PERRY MD | SECRETARY | 2 | $0 |
| MARILYN KONTE RN | TREASURER | 2 | $0 |
| ANDREW COX MD | DIRECTOR | 2 | $0 |
| LATHA SUBRAMANIAN MD | DIRECTOR | 2 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 875121, WASILLA, AK 99687-5121
- In care of
- % JEANNE ANDERSON MD
- Mailing address (990-N for 2022)
- 2925 DEBARR ROAD 300, ANCHORAGE AK 99508
- Principal officer (990 for 2025)
- TAMMY THIEL, PO BOX 875121, WASILLA, AK 99687
- Principal officer (990-N for 2022)
- TAMMY THIEL, 2925 DEBARR ROAD 300, ANCHORAGE AK 99508
- Signed the 990
- TAMMY THIEL, EXECUTIVE DIRECTOR
- Phone
- (907) 276-2400
- Return prepared by
- THOMAS HEAD & GREISEN PC
Mission
TO PROMOTE, PLAN, SUPPORT, REPRESENT, ADVOCATE FOR, AND CONDUCT EDUCATIONAL, AND SCIENTIFIC ACTIVITIES TO FACILITATE IMPROVEMENTS IN THE PRACTICE OF ONCOLOGY AND THE DELIVERY OF CARE TO PATIENTS FOR THE BENEFIT OF THE CITIZENS AND RESIDENTS OF THE STATE OF ALASKA.
Program accomplishments
- THE DENALI ONCOLOGY GROUP PROVIDES EDUCATIONAL OPPORTUNITIES FOR THE ONCOLOGY COMMUNITY IN ALASKA, NORMALLY HOSTING A BUSINESS MEETING IN THE SPRING AND A CLINICAL MEETING IN THE FALL. THERE WERE APPROXIMATELY 65 PEOPLE IN ATTENDANCE FOR THE CONFERENCE IN 2025. SIX GUEST SPEAKERS CAME FROM ACROSS THE UNITED STATES TO TEACH VARIOUS ONCOLOGY TECHNIQUES.
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. 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-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 26-0900479
- Tax-exempt status
- 501(c)(6): Business league or chamber of commerce
- Donations deductible
- No
- Exempt since
- 2008
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G033)
- Assets (IRS master file)
- $499,208
- Income (IRS master file)
- $204,704
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $204,704 | $165,916 | $499,208 | XML |
| 990-EZ | December 2024 | $167,525 | $145,764 | $460,420 | XML |
| 990-EZ | December 2023 | $105,000 | $51,309 | $438,659 | XML |
| 990-N for 2022 Officer: TAMMY THIEL | December 31, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-N for 2014 Officer: RICHARD CHUNG | December 31, 2014 | ≤ $50,000 receipts | – | – | e-Postcard |
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 26-0900479).
Questions about DENALI ONCOLOGY GROUP
- What is the EIN of DENALI ONCOLOGY GROUP?
- The employer identification number (EIN) of DENALI ONCOLOGY GROUP is 26-0900479.
- Is DENALI ONCOLOGY GROUP tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 2008.
- Are donations to DENALI ONCOLOGY GROUP tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does DENALI ONCOLOGY GROUP file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of DENALI ONCOLOGY GROUP 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 DENALI ONCOLOGY GROUP 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 DENALI ONCOLOGY GROUP?
- The 990 for the year ended December 31, 2025 names TAMMY THIEL.
- Who are the officers and directors of DENALI ONCOLOGY GROUP?
- The 990 for the year ended December 31, 2025 lists 8 people; 1 received compensation from the organization, the highest $55,000 (TAMMY THIEL, EXECUTIVE DIRECTOR).
- How much revenue does DENALI ONCOLOGY GROUP have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $204,704, expenses of $165,916 and total assets of $499,208 at year end.
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All nonprofits in WASILLA · Alaska · Voluntary health associations and medical disciplines