Nonprofit · EIN 22-2279199
DDW LLC
Tax-exempt · BETHESDA, MD 20814
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| August 31, 2025 | 990 | $16,906,500 | $7,881,962 | $9,024,538 | $5,250,508 | $5,250,508 | $0 |
| August 31, 2024 | 990 | $15,966,860 | $7,560,816 | $8,406,044 | $4,812,419 | $4,812,419 | $0 |
| August 31, 2023 | 990 | $15,774,305 | $7,334,548 | $8,439,757 | $7,081,396 | $7,081,396 | $0 |
Financial details: 990 for the year ended August 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $16,080,961
- Investment income
- $281,389
- Royalties
- $215,812
- Other revenue
- $544,150
Expenses
- Grants and similar amounts paid
- $20,000
- Compensation of officers, directors and key employees
- $10,000
- Salaries, compensation and benefits (total)
- $10,000
- Professional fundraising fees
- $0
- Legal fees
- $360
- Accounting fees
- $34,528
- Travel
- $46,704
- Program services (functional)
- $7,230,582
- Management and general (functional)
- $651,380
Balance sheet and other
- Total assets, start of year
- $4,812,419
- Total assets, end of year
- $5,250,508
- Total liabilities, end of year
- $5,250,508
- Net assets, end of year
- $0
- Gross unrelated business income
- $28,491
- Gross receipts
- $16,906,500
- Employees
- 0
- Volunteers
- 22
- Year formed
- 2007
- State of legal domicile
- DE
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 August 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LOREN A LAINE MD AGAF | COUNCIL CHAIR Trustee or director, Officer | 5 | $10,000 |
| TAMAR H TADDEI MD FAASLD | SECRETARY/TREASURER UNTIL 5/25 Trustee or director, Officer | 5 | $0 |
| JOHN I ALLEN MD MBA AGAF | SECRETARY/TREASURER AS OF 5/25 Trustee or director, Officer | 5 | $0 |
| MARIA T ABREU MD AGAF | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| CARLA W BRADY MD MHS FAASLD | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| RONTONYA CARR MD FACP | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| AMITABH CHAK MD MASGE | COUNCILOR Trustee or director | 2 | $0 |
| JONATHAN COHEN MD MASGE | COUNCILOR Trustee or director | 2 | $0 |
| BYRON L CRYER MD AGAF | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| JASON A DOMINITZ MD MHS MASGE | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| SAUL J KARPEN MD PHD FAASLD | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| GREGORY D KENNEDY MD PHD | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| LAWRENCE S KIM MD AGAF | COUNCILOR Trustee or director | 2 | $0 |
| MICHAEL R LUCEY MD FAASLD | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| NANCY REAU MD FAASLD AGAF | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
9 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAYLOR S RIALL MD PHD | COUNCILOR Trustee or director | 2 | $0 |
| DOUGLAS J ROBERTSON MD MPH AGAF | COUNCILOR Trustee or director | 2 | $0 |
| PRATEEK SHARMA MD FASGE | COUNCILOR UNTIL 5/25 Trustee or director | 5 | $0 |
| GRACE L SU MD FAASLD | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| VASSILIKI L TSIKITIS MD MCR M | COUNCILOR AS OF 5/25 Trustee or director | 2 | $0 |
| CHING-EI D TZENG MD | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| VIC VELANOVICH MD | COUNCILOR UNTIL 5/25 Trustee or director | 2 | $0 |
| THOMAS SERENA | CEO (SEE SCH. O) Officer | 0 | $0 |
| CHRISTOPHER BLUHM SR VICE | PRESIDENT (SEE SCH. O) Officer | 0 | $0 |
990 for the year ended August 31, 2024: 26 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LOREN A LAINE MD AGAF | COUNCIL CHAIR Officer | 5 | $5,000 |
| PRATEEK SHARMA MD FASGE SECR | /TREAS. UNTIL 5/24; COUNCILOR AS OF 5/24 Trustee or director, Officer | 5 | $0 |
| TAMAR H TADDEI MD FAASLD | SECRETARY/TREASURER AS OF 5/24 Trustee or director, Officer | 5 | $0 |
| MARIA T ABREU MD AGAF | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| CARLA W BRADY MD MHS FAASLD | COUNCILOR Trustee or director | 2 | $0 |
| JOHN M CARETHERS MD AGAF | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| AMITABH CHAK MD MASGE | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| JENNIFER A CHRISTIE MD FASGE | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| JONATHAN COHEN MD MASGE | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| BARBAR JUNG MD AGAF | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| LAWRENCE S KIM MD AGAF | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| W RAY KIM MD FAASLD | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| ANNE LIDOR MD | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| MICHAEL R LUCEY MD FAASLD | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| BRET T PETERSON MD MASGE | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| TAYLOR S RIALL MD PHD | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| DOUGLAS J ROBERTSON MD MPH AGAF | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| RHONDA F SOUZA MD AGAF FASGE | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| GRACE L SU MD FAASLD | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| NORAH TERRAULT MD MPH FAASLD | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| JENNIFER F TSENG MD MPH | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| CHING-EI D TZENG MD | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| JEAN NICOLAS VAUTHEY MD | COUNCILOR UNTIL 5/24 Trustee or director | 2 | $0 |
| VIC VELANOVICH MD | COUNCILOR AS OF 5/24 Trustee or director | 2 | $0 |
| THOMAS SERENA | CEO (SEE SCH. O) Officer | 0 | $0 |
| CHRISTOPHER BLUHM | SR. VICE PRESIDENT (SEE SCH. O) Officer | 0 | $0 |
990 for the year ended August 31, 2023: 21 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LOREN A LAINE MD AGAF | COUNCIL CHAIR Officer | 5 | $10,000 |
| CARLA W BRADY MD MHS FAASLD | COUNCILOR Trustee or director | 2 | $0 |
| MARK P CALLERY MD | COUNCILOR UNTIL 5/23 Trustee or director | 2 | $0 |
| JOHN M CARETHERS MD AGAF | COUNCILOR Trustee or director | 2 | $0 |
| JENNIFER A CHRISTIE MD FASGE | COUNCILOR AS OF 5/23 Trustee or director | 2 | $0 |
| LAURIE D DELEVE MD PHD FAASLD | COUNCILOR UNTIL 5/23 Trustee or director | 2 | $0 |
| JOHN M INADOMI MD AGAF | COUNCILOR UNTIL 5/23 Trustee or director | 2 | $0 |
| BARBAR JUNG MD AGAF | COUNCILOR AS OF 5/23 Trustee or director | 2 | $0 |
| W RAY KIM MD FAASLD | COUNCILOR AS OF 5/23 Trustee or director | 2 | $0 |
| ANNE LIDOR MD | COUNCILOR AS OF 5/23 Trustee or director | 2 | $0 |
| BRET T PETERSON MD MASGE | COUNCILOR Trustee or director | 2 | $0 |
| DOUGLAS K REX MD MASGE | COUNCILOR UNTIL 5/23 Trustee or director | 2 | $0 |
| TAYLOR S RIALL MD PHD | COUNCILOR UNTIL 5/23 Trustee or director | 2 | $0 |
| RHONDA F SOUZA MD AGAF FASGE | COUNCILOR Trustee or director | 2 | $0 |
| NORAH TERRAULT MD MPH FAASLD | COUNCILOR Trustee or director | 2 | $0 |
| JENNIFER F TSENG MD MPH | COUNCILOR AS OF 5/23 Trustee or director | 2 | $0 |
| JEAN NICOLAS VAUTHEY MD | COUNCILOR Trustee or director | 3 | $0 |
| VIJAY SHAH MD PHD FAASLD | SECRETARY/TREASURER UNTIL 5/23 Officer | 5 | $0 |
| PRATEEK SHARMA MD FASGE | SECRETARY/TREASURER AS OF 5/23 Officer | 5 | $0 |
| THOMAS SERENA | CEO (SEE SCH. O) Officer | 0 | $0 |
| CHRISTOPHER BLUHM | SR. VICE PRESIDENT (SEE SCH. O) Officer | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 4930 DEL RAY AVE, BETHESDA, MD 20814-2512
- Principal officer (990 for 2024)
- THOMAS SERENA, 4930 DEL RAY AVENUE, BETHESDA, MD 20814
- Signed the 990
- TODD HATHAWAY, CHIEF OPERATING OFFICER
- Phone
- (301) 272-0022
- Website
- DDW.ORG
- Return prepared by
- CBIZ ADVISORS LLC
Mission
DDW, LLC IS OPERATED TO CARRY OUT THE CHARITABLE, SCIENTIFIC, AND EDUCATIONAL PURPOSES OF ITS MEMBER SOCIETIES, INCLUDING, BUT NOT LIMITED TO, HOLDING AN ANNUAL SCIENTIFIC MEETING REFERRED TO AS DIGESTIVE DISEASE WEEK (DOW) CONSISTING OF EDUCATIONAL PROGRAMS, EXHIBITS, SYMPOSIA, AND OTHER SESSIONS OF INTEREST TO THE TREATMENT AND CURE OF DIGESTIVE DISEASE.
Program accomplishments
- OPERATION OF THE PRESTIGIOUS DIGESTIVE DISEASE WEEK (DDW) ANNUAL CONFERENCE, WHICH IS RECOGNIZED AS ONE OF THE TOP 50 MEDICAL MEETINGS BY HCEA, THE HEALTHCARE CONVENTION AND EXHIBITORS ASSOCIATION. DIGESTIVE DISEASE WEEK IS THE WORLD'S LARGEST GATHERING OF PHYSICIANS, RESEARCHERS AND INDUSTRY IN THE FIELDS OF GASTROENTEROLOGY, HEPATOLOGY, ENDOSCOPY AND GASTROINTESTINAL SURGERY.Expenses $5,416,016 · revenue $7,407,021
- EDUCATION - DDW IS THE GLOBAL LEADER IN DISSEMINATING CUTTING-EDGE RESEARCH, EDUCATING THE SCIENTIFIC AND CLINICAL COMMUNITIES, PROMOTING INNOVATION, AND CONNECTING DIGESTIVE DISEASE PROFESSIONALS FROM ALL PARTS OF THE WORLD.Expenses $1,814,566 · grants $20,000 · revenue $729,835
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 August, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | August 31, 2026 | January 15, 2027 | Not due yet |
| 2024 | August 31, 2025 | January 15, 2026 | 990 on file |
| 2023 | August 31, 2024 | January 15, 2025 | 990 on file |
IRS record
- EIN
- 22-2279199
- 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
- 2018
- Accounting year ends
- August
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $5,250,508
- Income (IRS master file)
- $16,906,500
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | August 2025 | $16,906,500 | $7,881,962 | $5,250,508 | XML |
| 990-T | August 2025 | – | – | – | IRS |
| 990 | August 2024 | $15,966,860 | $7,560,816 | $4,812,419 | XML |
| 990-T | August 2024 | – | – | – | IRS |
| 990 | August 2023 | $15,774,305 | $7,334,548 | $7,081,396 | XML |
| 990-T | August 2023 | – | – | – | IRS |
| 990 | August 2022 | $13,188,824 | $6,585,935 | $4,318,260 | IRS |
| 990-T | August 2022 | – | – | – | IRS |
| 990 | August 2021 | – | – | – | IRS |
| 990-T | August 2021 | – | – | – | IRS |
| 990 | August 2020 | – | – | – | IRS |
| 990 | August 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 22-2279199).
Questions about DDW LLC
- What is the EIN of DDW LLC?
- The employer identification number (EIN) of DDW LLC is 22-2279199.
- Is DDW LLC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2018.
- Are donations to DDW LLC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does DDW LLC 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 DDW LLC due?
- The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did DDW LLC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended August 2025.
- Who is the principal officer of DDW LLC?
- The 990 for the year ended August 31, 2025 names THOMAS SERENA.
- Who are the officers and directors of DDW LLC?
- The 990 for the year ended August 31, 2025 lists 24 people; 1 received compensation from the organization, the highest $10,000 (LOREN A LAINE MD AGAF, COUNCIL CHAIR).
- How much revenue does DDW LLC have?
- On its 990 for the year ended August 31, 2025 it reported revenue of $16,906,500, expenses of $7,881,962 and total assets of $5,250,508 at year end.
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