Nonprofit · EIN 20-4968006
INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY
Tax-exempt · SAN DIEGO, CA 92109
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $151,944 | $97,774 | $54,170 | $481,778 | $0 | $481,778 |
| December 31, 2024 | 990 | $125,471 | $80,119 | $45,352 | $427,608 | $0 | $427,608 |
| December 31, 2023 | 990 | $209,896 | $82,864 | $127,032 | $382,256 | $0 | $382,256 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $142,779
- Membership dues
- $142,779
- Program service revenue
- $0
- Investment income
- $9,165
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $1,165
- Program services (functional)
- $90,986
- Management and general (functional)
- $6,788
Balance sheet and other
- Total assets, start of year
- $427,608
- Total assets, end of year
- $481,778
- Total liabilities, end of year
- $0
- Net assets, end of year
- $481,778
- Net assets without donor restrictions
- $481,778
- Gross receipts
- $151,944
- Employees
- 0
- Volunteers
- 0
- Year formed
- 1989
- State of legal domicile
- CA
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 |
|---|---|---|---|
| YULI BERLIN-BRONER | DIRECTOR Trustee or director | 2 | $0 |
| PETER DUCKMANTON | DIRECTOR Trustee or director | 2 | $0 |
| DR GISELA BONA | DIRECTOR Trustee or director | 2 | $0 |
| DR MALIN BRUNDIN | DIRECTOR Trustee or director | 2 | $0 |
| DR HONG-KEUN HYUN | DIRECTOR Trustee or director | 2 | $0 |
| DR TIMOTHY KIRKPATRICK | DIRECTOR Trustee or director | 2 | $0 |
| DR SIDHARTHA SHARMA | DIRECTOR Trustee or director | 2 | $0 |
| DR OLGA TISHKINA | DIRECTOR Trustee or director | 2 | $0 |
| VINCENZO CASTELLANO | SUBORDINATE OFFICER Trustee or director | 2 | $0 |
| DR WILLIAM KAHLER | TREASURER Officer | 4 | $0 |
| FABRICIO TEIXEIRA | SECRETARY Officer | 4 | $0 |
| DR ANNE O'CONNELL | IMMEDIATE PAST PRESIDENT Officer | 4 | $0 |
| DR LIRAN LEVIN | PRESIDENT Officer | 4 | $0 |
| DR MICHAL SOBCZAK | PRESIDENT ELECT Officer | 4 | $0 |
990 for the year ended December 31, 2024: 14 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| YULI BERLIN-BRONER | DIRECTOR Trustee or director | 2 | $0 |
| PETER DUCKMANTON | DIRECTOR Trustee or director | 2 | $0 |
| CESAR DE GREGORIO | DIRECTOR Trustee or director | 2 | $0 |
| KOYO TAKIMOTO | DIRECTOR Trustee or director | 2 | $0 |
| GEORGIOS TSILINGARIDIS | DIRECTOR Trustee or director | 2 | $0 |
| DR MICHAL SOBCZAK | DIRECTOR Trustee or director | 2 | $0 |
| DR NITESH TEWARI | DIRECTOR Trustee or director | 2 | $0 |
| DR GEERTJE VAN GORP | DIRECTOR Trustee or director | 2 | $0 |
| VINCENZO CASTELLANO | SUBORDINATE OFFICER Trustee or director | 2 | $0 |
| DR WILLIAM KAHLER | TREASURER Officer | 2 | $0 |
| FABRICIO TEIXEIRA | SECRETARY Officer | 2 | $0 |
| DR ANNE O'CONNELL | IMMEDIATE PAST PRESIDENT Officer | 4 | $0 |
| DR LIRAN LEVIN | PRESIDENT Officer | 4 | $0 |
| DR ZAFER CEHRELI | PRESIDENT ELECT Officer | 4 | $0 |
990 for the year ended December 31, 2023: 14 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DR M LAMAR HICKS | SUBORDINATE OFFICER Trustee or director | 1 | $0 |
| YULI BERLIN-BRONER | DIRECTOR Trustee or director | 1 | $0 |
| PETER DUCKMANTON | DIRECTOR Trustee or director | 1 | $0 |
| CESAR DE GREGORIO | DIRECTOR Trustee or director | 1 | $0 |
| KOYO TAKIMOTO | DIRECTOR Trustee or director | 1 | $0 |
| GEORGIOS TSILINGARIDIS | DIRECTOR Trustee or director | 1 | $0 |
| DR MICHAL SOBCZAK | DIRECTOR Trustee or director | 1 | $0 |
| DR NITESH TEWARI | DIRECTOR Trustee or director | 1 | $0 |
| DR GEERTJE VAN GORP | DIRECTOR Trustee or director | 1 | $0 |
| DR ANNE O'CONNELL | IMMEDIATE PAST PRESIDENT Officer | 5 | $0 |
| DR LIRAN LEVIN | PRESIDENT Officer | 5 | $0 |
| DR ZAFER CEHRELI | PRESIDENT ELECT Officer | 5 | $0 |
| DR CECILIA BOURGUIGNON | SECRETARY Officer | 5 | $0 |
| DR WILLIAM KAHLER | TREASURER Officer | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 4425 CASS ST STE A, SAN DIEGO, CA 92109-4015
- In care of
- % LEIF BAKLAND
- Principal officer (990 for 2025)
- DR WILLIAM KAHLER, 4425 CASS STREET A, SAN DIEGO, CA 92109
- Signed the 990
- DR WILLIAM KAHLER, TREASURER
- Phone
- (858) 272-1018
- Return prepared by
- DUFFY KRUSPODIN LLP
California records
California keeps its own records of charities and corporations. Search them by EIN 20-4968006 or by the name INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
DISSEMINATION WORLDWIDE OF LATEST ADVANCES IN PREVENTION AND TREATMENT OF DENTAL TRAUMA
Program accomplishments
- PAYMENT FOR JOURNAL SUBSCRIPTIONS TO PROVIDE CLINICIANS, RESEARCHERS, STUDENTS AND OTHERS AROUND THE WORLD ACCESS TO THE LATEST ADVANCES AND TREATMENT IN DENTAL TRAUMATOLOGY.Expenses $41,100
- WEBSITE AND APP TO UPDATE AND GAIN NEW MEMBERSExpenses $12,283
- BIENNIAL CONFERENCES ARE HELD AROUND THE WORLD TO ADVANCE THE PRACTICE OF DENTAL TRAUMA. PEOPLE FROM ALL OVER THE WORLD COME TOGETHER TO PRESENT SCIENTIFIC PRESENTATIONS ON CURRENT DENTAL TRAUMA TOPICS. EXPENSES AND INCOME FOR THE CONFERENCES ARE NOT ALL REPORTED IN THE SAME YEAR DUE TO THE FACT THAT PLANNING THE CONFERENCE TAKES OVER TWO YEARS. THEREFORE EXPENSES AND INCOME SHOWN ON THIS RETURN COULD BE FOR MORE THAN ONE CONFERENCE.Expenses $6,112
- EVERY YEAR THERE ARE BOARD MEETINGS WHERE DIRECTORS GATHER TO DISCUSS CURRENT ISSUES FACING THE ORGANIZATION, SET ORGANIZATIONAL POLICY AND DETERMINE THE PATH THE ORGANIZATION IS TAKING.Expenses $270
- THIS ORGANIZATION CONTRACTS WITH RES SEMINARS, INC., A CALIFORNIA CORPORATION, TO PROVIDE ADMINISTRATIVE SERVICES AND COORDINATION OF EVENTSExpenses $24,090
- PRINTING AND PUBLISHINGExpenses $4,727
- AWARDSExpenses $2,404
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 on file |
IRS record
- EIN
- 20-4968006
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2007
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Health care (E039)
- Assets (IRS master file)
- $481,778
- Income (IRS master file)
- $151,944
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $151,944 | $97,774 | $481,778 | XML |
| 990 | December 2024 | $125,471 | $80,119 | $427,608 | XML |
| 990 | December 2023 | $209,896 | $82,864 | $382,256 | XML |
| 990 | December 2022 | $132,135 | $98,344 | $255,224 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 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 20-4968006).
Questions about INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY
- What is the EIN of INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY?
- The employer identification number (EIN) of INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY is 20-4968006.
- Is INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
- Are donations to INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY 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 ASSOCIATION OF DENTAL TRAUMATOLOGY 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 ASSOCIATION OF DENTAL TRAUMATOLOGY 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 ASSOCIATION OF DENTAL TRAUMATOLOGY?
- The 990 for the year ended December 31, 2025 names DR WILLIAM KAHLER.
- Who are the officers and directors of INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY?
- The 990 for the year ended December 31, 2025 lists 14 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL ASSOCIATION OF DENTAL TRAUMATOLOGY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $151,944, expenses of $97,774 and total assets of $481,778 at year end.
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