Nonprofit · EIN 27-4141388
AMERICAN DELIRIUM SOCIETY
Tax-exempt · PLYMOUTH, MN 55441
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $280,428 | $286,336 | -$5,908 | $249,524 | $8,500 | $241,024 |
| December 31, 2024 | 990 | $9,510 | $11,400 | -$1,890 | $261,862 | $14,930 | $246,932 |
| October 31, 2024 | 990 | $288,603 | $274,014 | $14,589 | $256,582 | $7,760 | $248,822 |
| October 31, 2023 | 990 | $283,502 | $250,105 | $33,397 | $234,480 | $247 | $234,233 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $33,553
- Program service revenue
- $245,895
- Investment income
- $980
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $22,800
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $2,006
- Travel
- $13,436
- Program services (functional)
- $255,968
- Management and general (functional)
- $30,368
Balance sheet and other
- Total assets, start of year
- $261,862
- Total assets, end of year
- $249,524
- Total liabilities, end of year
- $8,500
- Net assets, end of year
- $241,024
- Net assets without donor restrictions
- $221,024
- Net assets with donor restrictions
- $20,000
- Gross receipts
- $280,428
- Employees
- 0
- Volunteers
- 65
- State of legal domicile
- MD
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 |
|---|---|---|---|
| Heidi Smith | President Trustee or director, Officer | 1 | $0 |
| Leanne Boehm | Pres-Elct Trustee or director, Officer | 1 | $0 |
| Ben Palanca | Secretary Trustee or director, Officer | 1 | $0 |
| Noll Campbell | Treasurer Trustee or director, Officer | 1 | $0 |
| Mark Oldham | Imm Past Pres Trustee or director | 1 | $0 |
| Esther Oh | Director Trustee or director | 1 | $0 |
| Jose R Maldonado | Director Trustee or director | 1 | $0 |
| Sikandar Hayat Khan | Director Trustee or director | 1 | $0 |
| Heidi Lindroth | Director Trustee or director | 1 | $0 |
| Clay R Angel | Director Trustee or director | 1 | $0 |
| Niccolo Terrando | Director Trustee or director | 1 | $0 |
| Charles Adrian Austin | Director Trustee or director | 1 | $0 |
| John Newman | Director Trustee or director | 1 | $0 |
| Amanda Sullivan | Executive Dir. Officer | 10 | $0 |
990 for the year ended December 31, 2024: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Mark Oldham | President Trustee or director, Officer | 1 | $0 |
| Heidi Smith | Treas/Pres-Elct Trustee or director, Officer | 1 | $0 |
| Ben Palanca | Secretary Trustee or director, Officer | 1 | $0 |
| Noll Campbell | Past President Trustee or director, Officer | 1 | $0 |
| Esther Oh | Imm Past Pres Trustee or director | 1 | $0 |
| Jose Maldonado | Director Trustee or director | 1 | $0 |
| Leanne Boehm | Director Trustee or director | 1 | $0 |
| Roberta Esteves Vieira de Cast | Director Trustee or director | 1 | $0 |
| Sikandar Hayat Khan | Director Trustee or director | 1 | $0 |
| Heidi Lindroth | Director Trustee or director | 1 | $0 |
| Clay R Angel | Director Trustee or director | 1 | $0 |
| Niccolo Terrando | Director Trustee or director | 1 | $0 |
| Adrian Austin | Director Trustee or director | 1 | $0 |
| John Newman | Director Trustee or director | 1 | $0 |
| Amanda Sullivan | Executive Dir. Officer | 10 | $0 |
990 for the year ended October 31, 2024: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Noll Campbell | President Trustee or director, Officer | 1 | $0 |
| Mark Oldham | President-Elect Trustee or director, Officer | 1 | $0 |
| Leanne Boehm | Secretary Trustee or director, Officer | 1 | $0 |
| Heidi Smith | Treasurer Trustee or director, Officer | 1 | $0 |
| Esther Oh | Imm Past Pres Trustee or director, Officer | 1 | $0 |
| Jose Maldonado | Director Trustee or director | 1 | $0 |
| Aaron Pinkhasov | Director Trustee or director | 1 | $0 |
| Roberta Esteves Vieira de Cast | Director Trustee or director | 1 | $0 |
| Sikandar Hayat Khan | Director Trustee or director | 1 | $0 |
| Babar Khan | Director Trustee or director | 1 | $0 |
| Kerri Maya | Director Trustee or director | 1 | $0 |
| Heidi Lindroth | Director Trustee or director | 1 | $0 |
| Clay R Angel | Director Trustee or director | 1 | $0 |
| Ben Palanca | Director Trustee or director | 1 | $0 |
| Niccolo Terrando | Director Trustee or director | 1 | $0 |
990 for the year ended October 31, 2023: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Noll Campbell | President Trustee or director, Officer | 1 | $0 |
| Mark Oldham | President-Elect Trustee or director, Officer | 1 | $0 |
| Leanne Boehm | Secretary Trustee or director, Officer | 1 | $0 |
| Heidi Smith | Treasurer Trustee or director, Officer | 1 | $0 |
| Esther Oh | Imm Past Pres Trustee or director, Officer | 1 | $0 |
| Jose Maldonado | Director Trustee or director | 1 | $0 |
| Aaron Pinkhasov | Director Trustee or director | 1 | $0 |
| Roberta Esteves Vieira de Cast | Director Trustee or director | 1 | $0 |
| Sikandar Hayat Khan | Director Trustee or director | 1 | $0 |
| Babar Khan | Director Trustee or director | 1 | $0 |
| Kerri Maya | Director Trustee or director | 1 | $0 |
| Heidi Lindroth | Director Trustee or director | 1 | $0 |
| Clay R Angel | Director Trustee or director | 1 | $0 |
| Ben Palanca | Director Trustee or director | 1 | $0 |
| Niccolo Terrando | Director Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 10700 HIGHWAY 55 STE 275, PLYMOUTH, MN 55441-6162
- In care of
- % ANN L GRUBER-BALDINI
- Signed the 990
- Charles Adrian Austin, Current Treasurer
- Phone
- (301) 718-6505
- Website
- americandeliriumsociety.org
- Return prepared by
- Barnes Givens & Barnes Ltd
Mission
Advance the scientific field of delirium
Program accomplishments
- Advance the scientific field of deliriumExpenses $255,968 · grants $22,800 · revenue $245,895
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 on file |
| 2023 | December 31, 2023 | May 15, 2024 | Check at the IRS |
IRS record
- EIN
- 27-4141388
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2014
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Recreation and sports (N50)
- Assets (IRS master file)
- $249,524
- Income (IRS master file)
- $280,428
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $280,428 | $286,336 | $249,524 | XML |
| 990 | December 2024 | $9,510 | $11,400 | $261,862 | XML |
| 990 | October 2024 | $288,603 | $274,014 | $256,582 | XML |
| 990 | October 2023 | $283,502 | $250,105 | $234,480 | XML |
| 990 | October 2022 | $214,406 | $207,969 | $201,376 | IRS |
| 990-EZ | October 2021 | – | – | – | IRS |
| 990 | October 2019 | – | – | – | 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 27-4141388).
Questions about AMERICAN DELIRIUM SOCIETY
- What is the EIN of AMERICAN DELIRIUM SOCIETY?
- The employer identification number (EIN) of AMERICAN DELIRIUM SOCIETY is 27-4141388.
- Is AMERICAN DELIRIUM SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
- Are donations to AMERICAN DELIRIUM SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does AMERICAN DELIRIUM SOCIETY 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 AMERICAN DELIRIUM SOCIETY 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 AMERICAN DELIRIUM SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who are the officers and directors of AMERICAN DELIRIUM SOCIETY?
- The 990 for the year ended December 31, 2025 lists 14 people; 0 received compensation from the organization.
- How much revenue does AMERICAN DELIRIUM SOCIETY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $280,428, expenses of $286,336 and total assets of $249,524 at year end.
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