Nonprofit · EIN 94-6123393
MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION
Tax-exempt · SAN MATEO, CA 94401
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $3,009 | $168,256 | -$165,247 | $268,269 | – | $268,269 |
| December 31, 2024 | 990-EZ | $30,654 | $65,264 | -$34,610 | $433,516 | – | $433,516 |
| December 31, 2023 | 990-EZ | $6,505 | $17,404 | -$10,899 | $468,126 | – | $468,126 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Investment income
- $3,009
Expenses
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $145,225
- Professional fees and payments to contractors
- $1,500
- Other expenses
- $21,531
- Program services (functional)
- $167,968
Balance sheet and other
- Total assets, start of year
- $433,516
- Total assets, end of year
- $268,269
- Total liabilities, end of year
- –
- Net assets, end of year
- $268,269
- Cash, savings and investments
- $260,080
- Gross receipts
- $3,009
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-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Gregory M Buncke | President | 4 | $0 |
| Rudolf Buntic | Vice President | 4 | $0 |
990-EZ for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Gregory M Buncke | President | 4 | $0 |
| Rudolf Buntic | Vice President | 4 | $0 |
990-EZ for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Gregory M Buncke | President | 4 | $0 |
| Rudolf Buntic | Vice President | 4 | $0 |
Address and contacts
- Address (IRS master file)
- 101 N EL CAMINO REAL STE A, SAN MATEO, CA 94401-2795
- Signed the 990-EZ
- Gregory M Buncke, President
- Phone
- (650) 342-8989
- Return prepared by
- DS Tax Group
California records
California keeps its own records of charities and corporations. Search them by EIN 94-6123393 or by the name MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION.
- 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
Microsurgical research programs teach fellow doctors the latest techniques in microsurgery, which involves the reattachment of nerve cells, arteries, and other soft tissues. In addition to the 1,100 patients benefitting by having reconstructive microsurgery, 4 fellow doctors recieve training in the art of microsurgery. Microsurgical Transplantation Research Foundation also provides medical research including the publications of medical research papers and presentations at national and international symposiums on specific medical procedures related to microsurgery for the benefit of doctors, institutions, and ultimately patients worldwide. In addition, approximately 20% of the patients treated are done at no cost as no patient is refused treatment.
Program accomplishments
- Microsurgical research programs teach fellow doctors the latest techniques in microsurgery, which involves the reattachment of nerve cells, arteries, and other soft tissues. In addition to the 1,100 patients benefitting by having reconstructive microsurgery, 4 fellow doctors recieve training in the art of microsurgery. Microsurgical Transplantation Research Foundation also provides medical research including the publications of medical research papers and presentations at national and international symposiums on specific medical procedures related to microsurgery for the benefit of doctors, institutions and ultimately patients worldwide. In addition, approximately 20% of the patients treated are done at no cost-no patient can be refused.Expenses $167,968
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. 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-EZ on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 94-6123393
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Hospital or medical research organization
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1965
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Medical research (H9BZ)
- Assets (IRS master file)
- $268,269
- Income (IRS master file)
- $3,009
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $3,009 | $168,256 | $268,269 | XML |
| 990-EZ | December 2024 | $30,654 | $65,264 | $433,516 | XML |
| 990-EZ | December 2023 | $6,505 | $17,404 | $468,126 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990-EZ | December 2019 | – | – | – | IRS |
| 990-EZ | 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 94-6123393).
Questions about MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION
- What is the EIN of MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION?
- The employer identification number (EIN) of MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION is 94-6123393.
- Is MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1965.
- Are donations to MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION 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 MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who are the officers and directors of MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION?
- The 990-EZ for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does MICROSURGICAL TRANSPLANTATION RESEARCH FOUNDATION have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $3,009, expenses of $168,256 and total assets of $268,269 at year end.
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