Nonprofit · EIN 45-5269622
PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY
Tax-exempt (reinstated) · SAN MARINO, CA 91108
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $216,425 | $24,643 | $191,782 | $466,536 | $4,914 | $461,622 |
| December 31, 2024 | 990-PF | $245,100 | $17,986 | $227,114 | $269,840 | $0 | $269,840 |
| December 31, 2023 | 990-PF | $8,190 | $7,827 | $363 | $42,726 | $0 | $42,726 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $209,098
- Dividends
- $1
- Interest
- $7,326
Expenses
- Grants and similar amounts paid
- $22,000
- Disbursements for charitable purposes
- $24,643
- Excise tax on investment income
- $102
Balance sheet and other
- Total assets, start of year
- $269,840
- Total assets, end of year
- $466,536
- Total liabilities, end of year
- $4,914
- Net assets, end of year
- $461,622
- Fair market value of assets
- $462,487
- Qualifying distributions
- $24,643
- Net investment income
- $7,327
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-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DENNIS CHEN 14551 FRUITVALE AVE, SARATOGA, CA 95070 | DIRECTOR | 1 | $0 |
| CHIN S SHIN 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | CEO DIRECTOR | 1 | $0 |
| BERWYN LIN 1965 LOMBARDY, SAN MARINO, CA 91108 | DIRECTOR | 1 | $0 |
| THERESA TSENG 2160 ORLANDO RD, SAN MARINO, CA 91108 | CFO DIRECTOR | 1 | $0 |
| TED CHAU WEI 3105 MONTEREY RD, SAN MARINO, CA 91108 | DIRECTOR | 1 | $0 |
990-PF for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DENNIS CHEN 14551 FRUITVALE AVE, SARATOGA, CA 95070 | Director | 0 | $0 |
| CHIN S SHIH 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | CEO, DIRECTOR | 1 | $0 |
| BERWYN LIN 1965 LOMBARDY, SAN MARINO, CA 91108 | DIRECTOR | 1 | $0 |
| THERESA TSENG 2160 ORLANDO RD, SAN MARINO, CA 91108 | CFO | 1 | $0 |
| TED CHAU WEI 3105 MONTEREY RD, SAN MARINO, CA 91108 | Director | 1 | $0 |
990-PF for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHIN S SHIH 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | CEO, DIRECTOR | 1 | $0 |
| BERWYN LIN 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | CFO, DIRECTOR | 1 | $0 |
| DONG L CHANG 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | Director | 1 | $0 |
| TED CHAU WEI 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | Director | 1 | $0 |
| Chy Horng Liang 1465 SAINT ALBANS RD, SAN MARINO, CA 91108 | Director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 1465 SAINT ALBANS RD, SAN MARINO, CA 91108-1862
- In care of
- % THERESA TSENG
- Signed the 990-PF
- THERESA TSENG, DIRECTOR
- Phone
- (626) 755-0027
- Return prepared by
- WING LAU CPA A PROFESSIONAL CORP
California records
California keeps its own records of charities and corporations. Search them by EIN 45-5269622 or by the name PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY.
- 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)
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 45-5269622
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 2016
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $466,536
- Income (IRS master file)
- $216,425
Revocation and reinstatement
- Exemption revoked
- May 15, 2015
- Posted by the IRS
- October 22, 2016
- Reinstated
- Effective May 15, 2015
From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $216,425 | $24,643 | $466,536 | XML |
| 990-PF | December 2024 | $245,100 | $17,986 | $269,840 | XML |
| 990-PF | December 2023 | $8,190 | $7,827 | $42,726 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | 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 45-5269622).
Questions about PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY
- What is the EIN of PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY?
- The employer identification number (EIN) of PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY is 45-5269622.
- Is PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY tax-exempt?
- Yes. The IRS revoked its exemption on May 15, 2015 and reinstated it effective May 15, 2015.
- Are donations to PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY file?
- Form 990-PF. Private foundations file every year.
- When is the next return of PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY 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 PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY?
- The 990-PF for the year ended December 31, 2025 lists 5 people; 0 received compensation from the organization.
- How much revenue does PROFESSOR HSIEN-CHEN HSIEH MEDICAL ADVANCEMENT SOCIETY have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $216,425, expenses of $24,643 and total assets of $466,536 at year end.
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All nonprofits in SAN MARINO · California · Philanthropy, voluntarism and grantmaking foundations