Nonprofit · EIN 51-0604603
INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN
Tax-exempt · FAIRFAX, VA 22033
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $280,161 | $179,518 | $100,643 | $624,001 | $128,500 | $495,501 |
| December 31, 2024 | 990 | $222,848 | $196,733 | $26,115 | $561,378 | $151,068 | $410,310 |
| December 31, 2023 | 990-EZ | $96,133 | $132,448 | -$36,315 | $413,411 | $37,167 | $376,244 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $168,254
- Program service revenue
- $13,500
- Investment income
- $29,982
- Other revenue
- $68,425
Expenses
- Grants and similar amounts paid
- $16,644
- Compensation of officers, directors and key employees
- $72,307
- Salaries, compensation and benefits (total)
- $115,000
- Professional fundraising fees
- $0
- Legal fees
- $1,000
- Program services (functional)
- $108,735
- Management and general (functional)
- $49,087
- Fundraising (functional)
- $21,696
Balance sheet and other
- Total assets, start of year
- $561,378
- Total assets, end of year
- $624,001
- Total liabilities, end of year
- $128,500
- Net assets, end of year
- $495,501
- Net assets without donor restrictions
- $234,241
- Net assets with donor restrictions
- $261,260
- Gross receipts
- $280,161
- Employees
- 0
- Volunteers
- 0
- Year formed
- 2006
- State of legal domicile
- VA
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 | From related orgs |
|---|---|---|---|---|
| Sarah Quillen | Executive Director Officer | 5 | $0 | $170,000 |
| Garth Ehrlich PhD | President Trustee or director, Officer | 1 | $0 | $0 |
| Jyotsna Shah PhD CCLD MBA | Director Trustee or director | 1 | $0 | $0 |
| Aron Will | Director Trustee or director | 1 | $0 | $0 |
| B Robert Mozayeni MD | Director Trustee or director | 1 | $0 | $0 |
| Armin Schwarzbach MD | Director Trustee or director | 1 | $0 | $0 |
| Leo J Shea III PhD | Director Trustee or director | 1 | $0 | $0 |
| Nikki Shultek | Director Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2024: 7 people
| Name | Title | Hours / week | Compensation | From related orgs |
|---|---|---|---|---|
| Sarah Quillen | Executive Director Officer | 5 | $0 | $166,500 |
| Garth Ehrlich PhD | President Trustee or director, Officer | 1 | $0 | $0 |
| Jyotsna Shah PhD CCLD MBA | Director Trustee or director | 1 | $0 | $0 |
| Aron Will | Director Trustee or director | 1 | $0 | $0 |
| B Robert Mozayeni MD | Director Trustee or director | 1 | $0 | $0 |
| Armin Schwarzbach MD | Director Trustee or director | 1 | $0 | $0 |
| Leo J Shea III PhD | Director Institutional trustee | 1 | $0 | $0 |
990-EZ for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| William Grubb | CFO | 2 | $0 |
| Garth Ehrlich PhD | President | 1 | $0 |
| Magdalena Cubala-Kucharska MD PhD | Secretary | 1 | $0 |
| Ron Wilson MD | Treasurer | 1 | $0 |
| Pol de Saedeleer PharmD | Director | 1 | $0 |
| Jyotsna Shah PhD | Director | 1 | $0 |
| Leo J Shea III PhD | Director | 1 | $0 |
| Sarah Quillen | Executive Dir. | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 4000 LEGATO RD STE 1100, FAIRFAX, VA 22033-2893
- In care of
- % BARBARA L BUCHMAN
- Principal officer (990 for 2025)
- Sarah Quillen, 4000 Legato Rd 1100, Fairfax, VA 22033
- Signed the 990
- Sarah Quillen, Executive Director
- Phone
- (301) 263-1080
- Website
- www.iladef.org
Mission
To train physicians in the diagnosis and treatment of Lyme and tick-borne disease, and to support research scientists investigating tick-borne diseases.
Program accomplishments
- Educational course for medical professionals about the presentation, diagnosis, treatment, and pathophysiology of Lyme and other vector-borne diseases.Expenses $101,235 · grants $16,644
- Preceptorship program for medical professionals to advance their skills with regard to diagnosing and treating patients with Lyme and other vector-borne diseases by training alongside an experienced ILADEF-approved doctor. Started Allied Health Professionals Training Program.Expenses $7,500 · grants $7,500
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 | 990-EZ on file |
IRS record
- EIN
- 51-0604603
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Supporting organization, Type I
- Donations deductible (Pub 78)
- Supporting organization, 50% limit
- Exempt since
- 2007
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G40)
- Assets (IRS master file)
- $624,001
- Income (IRS master file)
- $280,161
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $280,161 | $179,518 | $624,001 | IRS |
| 990 | December 2024 | $222,848 | $196,733 | $561,378 | IRS |
| 990-EZ | December 2023 | $96,133 | $132,448 | $413,411 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | 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 51-0604603).
Questions about INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN
- What is the EIN of INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN?
- The employer identification number (EIN) of INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN is 51-0604603.
- Is INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
- Are donations to INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN tax-deductible?
- Yes. It is listed in IRS Publication 78 (Supporting organization, 50% limit).
- Which annual return does INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN 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 INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN 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 INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN 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 INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN?
- The 990 for the year ended December 31, 2025 names Sarah Quillen.
- Who are the officers and directors of INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN?
- The 990 for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL LYME AND ASSOCIATED DISEASES EDUCATIONAL FOUNDATION IN have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $280,161, expenses of $179,518 and total assets of $624,001 at year end.
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