Nonprofit · EIN 59-1152917
HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC
Tax-exempt · TAMPA, FL 33610
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $643,775 | $658,932 | -$15,157 | $102,331 | $639 | $101,692 |
| December 31, 2024 | 990 | $491,167 | $499,019 | -$7,852 | $117,488 | $639 | $116,849 |
| December 31, 2023 | 990 | $536,834 | $526,523 | $10,311 | $124,701 | $0 | $124,701 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $639,031
- Investment income
- $4,744
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $169,482
- Other salaries and wages
- $287,728
- Salaries, compensation and benefits (total)
- $542,625
- Professional fundraising fees
- $0
- Accounting fees
- $4,825
- Occupancy
- $2,140
- Travel
- $430
- Program services (functional)
- $551,833
- Management and general (functional)
- $107,099
Balance sheet and other
- Total assets, start of year
- $117,488
- Total assets, end of year
- $102,331
- Total liabilities, end of year
- $639
- Net assets, end of year
- $101,692
- Gross receipts
- $643,775
- Employees
- 11
- Year formed
- 1968
- State of legal domicile
- FL
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 |
|---|---|---|---|
| DR ZIAD ABOU-ASSI | DIRECTOR Trustee or director | 40 | $84,639 |
| DR ALEJANDRA M CARTAGENA | TREASURER Officer | 10 | $53,134 |
| DR CHRISTIANA AJMO | VICE PRESIDE Officer | 10 | $31,709 |
| DR ASMA AKILEH | SECRETARY Officer | 10 | $0 |
| DR TODD MERRELL WILLIAMS | PRESIDENT Officer | 10 | $0 |
990 for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DR ZIAD ABOU-ASSI | DIRECTOR Trustee or director | 40 | $65,000 |
| DR CHRISTIANA AJMO | VICE PRESIDE Officer | 10 | $22,164 |
| DR ALEJANDRA M CARTAGENA | TREASURER Officer | 10 | $15,230 |
| DR ASMA AKILEH | SECRETARY Officer | 10 | $0 |
| DR TODD MERRELL WILLIAMS | PRESIDENT Officer | 10 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DR ZIAD ABOU-ASSI | DIRECTOR Trustee or director | 40 | $68,302 |
| DR TEJAN ELMARIAH | TREASURER Officer | 10 | $36,847 |
| DR CHRISTIANA AJMO | VICE PRESIDE Officer | 10 | $19,634 |
| DR ASMA AKILEH | SECRETARY Officer | 10 | $0 |
| DR TODD MERRELL WILLIAMS | PRESIDENT Officer | 10 | $0 |
Address and contacts
- Address (IRS master file)
- 2010 E HILLSBOROUGH AVE, TAMPA, FL 33610-8255
- Principal officer (990 for 2025)
- DR TODD MERRELL WILLIAMS, 2010 E HILLSBOROUGH AVENUE, TAMPA, FL 336108255
- Signed the 990
- DR ZIAD ABOU-ASSI, DIRECTOR
- Phone
- (813) 769-5180
- Website
- WWW.HCDRC.COM
- Return prepared by
- HAMILTON & ASSOCIATES CPA LLC
Mission
TO PROVIDE LOW COST, QUALITY GENERAL DENTAL SERVICES TO THE PUBLIC WHILE AT THE SAME TIME PROVIDING ADVANCED EDUCATION FOR DENTISTS AND FOR THE TRAINING OF DENTAL ASSISTANTS IN COOPERATION WITH THE HILLSBOUROUGH COUNTY PUBLIC SCHOOL SYSTEM AND ERWIN TECHNICAL CENTER.
Program accomplishments
- TO PROVIDE LOW COST, QUALITY DENTAL SERVICES TO THE PUBLIC.Expenses $551,833 · revenue $639,031
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
- 59-1152917
- 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
- 1968
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Health care (E70)
- Assets (IRS master file)
- $102,331
- Income (IRS master file)
- $643,775
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $643,775 | $658,932 | $102,331 | XML |
| 990 | December 2024 | $491,167 | $499,019 | $117,488 | IRS |
| 990 | December 2023 | $536,834 | $526,523 | $124,701 | XML |
| 990 | December 2022 | $511,871 | $551,677 | $114,390 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 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 59-1152917).
Questions about HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC
- What is the EIN of HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC?
- The employer identification number (EIN) of HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC is 59-1152917.
- Is HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1968.
- Are donations to HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC 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 HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC 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 HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC 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 HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC?
- The 990 for the year ended December 31, 2025 names DR TODD MERRELL WILLIAMS.
- Who are the officers and directors of HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC?
- The 990 for the year ended December 31, 2025 lists 5 people; 3 received compensation from the organization, the highest $84,639 (DR ZIAD ABOU-ASSI, DIRECTOR).
- How much revenue does HILLSBOROUGH COUNTY DENTAL RESEARCH CLINIC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $643,775, expenses of $658,932 and total assets of $102,331 at year end.
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