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DDW LLC

EIN 22-2279199 BETHESDA, MD

Browse the largest nonprofits in Maryland

Revenue 2024
$16,906,500
Expenses 2024
$7,881,962

Program services were 91.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
Classification
2000
Street
4930 DEL RAY AVE

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Other organizations at this address

2 other organizations in the IRS Business Master File list the same street address. matched by us

We match the street line and ZIP code as the IRS gives them, ignoring case and outer spaces and nothing else, so "AVE" and "AVENUE" count as different streets and this list can miss some. A shared address can mean related organizations or a shared office, but it can also be a registered agent, a mail drop or a service provider holding mail for unrelated clients. It is not, by itself, evidence that two organizations are connected.

Mission and programs · 2024

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.

  • 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

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Loren A Laine MD Agaf

    COUNCIL CHAIR

    Total calculated
    $10,000
    From this org
    $10,000
    From related orgs
    $0
    Other
    $0
    Hours/week
    5
  • Tamar H Taddei MD Faasld

    SECRETARY/TREASURER UNTIL 5/25

    Total calculated
    $0
    Hours/week
    5
  • John I Allen MD MBA Agaf

    SECRETARY/TREASURER AS OF 5/25

    Total calculated
    $0
    Hours/week
    5
  • Maria T Abreu MD Agaf

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Carla W Brady MD Mhs Faasld

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Rontonya Carr MD Facp

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Amitabh Chak MD Masge

    COUNCILOR

    Total calculated
    $0
    Hours/week
    2
  • Jonathan Cohen MD Masge

    COUNCILOR

    Total calculated
    $0
    Hours/week
    2
  • Byron L Cryer MD Agaf

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Jason A Dominitz MD Mhs Masge

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Saul J Karpen MD PhD Faasld

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Gregory D Kennedy MD PhD

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Lawrence S Kim MD Agaf

    COUNCILOR

    Total calculated
    $0
    Hours/week
    2
  • Michael R Lucey MD Faasld

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Nancy Reau MD Faasld Agaf

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Taylor S Riall MD PhD

    COUNCILOR

    Total calculated
    $0
    Hours/week
    2
  • Douglas J Robertson MD MPH Agaf

    COUNCILOR

    Total calculated
    $0
    Hours/week
    2
  • Prateek Sharma MD Fasge

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    5
  • Grace L Su MD Faasld

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Vassiliki L Tsikitis MD McR M

    COUNCILOR AS OF 5/25

    Total calculated
    $0
    Hours/week
    2
  • Ching-Ei D Tzeng MD

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Vic Velanovich MD

    COUNCILOR UNTIL 5/25

    Total calculated
    $0
    Hours/week
    2
  • Thomas Serena

    CEO (SEE SCH. O)

    Total calculated
    $0
    Hours/week
    0
  • Christopher Bluhm Sr Vice

    PRESIDENT (SEE SCH. O)

    Total calculated
    $0
    Hours/week
    0

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $16,906,500
    Expenses
    $7,881,962
    Contributions
    $0
    Grants paid
    $20,000
  • 2023
    Revenue
    $15,966,860
    Expenses
    $7,560,816
    Contributions
    $0
    Grants paid
    $19,000
  • 2022
    Revenue
    $15,774,305
    Expenses
    $7,334,548
    Contributions
    $0
    Grants paid
    $19,000

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2024 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2021 · 990

    Revenue
    $13,188,824
    Expenses
    $6,585,935
    Assets (EOY)
    $4,318,260
  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2020 · 990

    Revenue
    $17,634,948
    Expenses
    $3,250,719
    Assets (EOY)
    $1,097,891
  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported
  • 2019 · 990

    Revenue
    $793,113
    Expenses
    $3,390,710
    Assets (EOY)
    $452,523
  • 2017 · 990

    Revenue
    $11,085,632
    Expenses
    $5,048,553
    Assets (EOY)
    $2,305,949

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

No itemized grant names this organization as a recipient. Only grants over $5,000 are itemized, and only by filers of the full Form 990.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 11 November 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.