Nonprofit · EIN 84-4886146
MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL
Tax-exempt · UPLAND, CA 91786
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $283,924 | $250,904 | $33,020 | $236,412 | $1 | $236,411 |
| December 31, 2024 | 990 | $257,433 | $249,541 | $7,892 | $198,561 | $0 | $198,561 |
| December 31, 2023 | 990 | $230,812 | $229,481 | $1,331 | $190,669 | $0 | $190,669 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $281,541
- Investment income
- $2,383
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $2,815
- Program services (functional)
- $21,000
- Management and general (functional)
- $210,062
Balance sheet and other
- Total assets, start of year
- $198,561
- Total assets, end of year
- $236,412
- Total liabilities, end of year
- $1
- Net assets, end of year
- $236,411
- Net assets without donor restrictions
- $236,411
- Gross receipts
- $283,924
- Employees
- 0
- Year formed
- 2020
- 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 |
|---|---|---|---|
| Nima Naimi DO | President-Elect Trustee or director | 0 | $0 |
| Vincent Lee MD | Member Trustee or director | 0 | $0 |
| Steven Barag DO | Chair Trustee or director | 0 | $0 |
| Mark Shiu DO | Sec/Treasurer Trustee or director, Officer | 0 | $0 |
| Tyler Mitchell DO | Chair Trustee or director | 0 | $0 |
| Ali Heidari DO | Past-President Trustee or director, Officer | 0 | $0 |
| Basim Abdelkarim MD | President Trustee or director, Officer | 0 | $0 |
| Hussein Abidali DO | Member Trustee or director | 0 | $0 |
| Peter Yoo MD | Member Trustee or director | 0 | $0 |
| Ed DiGiamarino MD | Chair Trustee or director | 0 | $0 |
| Franklin Johnson DO | Chair Trustee or director | 0 | $0 |
| Antoune Saad MD | Chair Trustee or director | 0 | $0 |
| Timothy Wu MD | Chair Trustee or director | 0 | $0 |
| Reza Pakdaman MD | Chair Trustee or director | 0 | $0 |
| Lawrence Wagman MD | Chair Trustee or director | 0 | $0 |
990 for the year ended December 31, 2024: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Nima Naimi DO | President-Elect Trustee or director | 0 | $0 |
| Vincent Lee MD | Member Trustee or director | 0 | $0 |
| Steven Barag DO | Chair Trustee or director | 0 | $0 |
| Mark Shiu DO | Sec/Treasurer Trustee or director, Officer | 0 | $0 |
| Tyler Mitchell DO | Chair Trustee or director | 0 | $0 |
| Ali Heidari DO | Past-President Trustee or director, Officer | 0 | $0 |
| Basim Abdelkarim MD | President Trustee or director, Officer | 0 | $0 |
| Hussein Abidali DO | Member Trustee or director | 0 | $0 |
| Peter Yoo MD | Member Trustee or director | 0 | $0 |
| Ed DiGiamarino MD | Chair Trustee or director | 0 | $0 |
| Franklin Johnson DO | Chair Trustee or director | 0 | $0 |
| Antoune Saad MD | Chair Trustee or director | 0 | $0 |
| Timothy Wu MD | Chair Trustee or director | 0 | $0 |
| Reza Pakdaman MD | Chair Trustee or director | 0 | $0 |
| Lawrence Wagman MD | Chair Trustee or director | 0 | $0 |
990 for the year ended December 31, 2023: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Steven Barag DO | Past President Trustee or director | 0 | $0 |
| Mark Shiu | Treasurer Trustee or director, Officer | 0 | $0 |
| Ali Heidari DO | President Trustee or director, Officer | 0 | $0 |
| Basim Abdelkarim MD | President-Elect Trustee or director | 0 | $0 |
| Hussein Abidali DO | 1st Year Member Trustee or director | 0 | $0 |
| Peter Yoo MD | 2nd Year Member Trustee or director | 0 | $0 |
| Ythanh Nguyen MD | 3rd Year Member Trustee or director | 0 | $0 |
| Ed DiGiamarino MD | Chairman Trustee or director | 0 | $0 |
| Amber Andreatta DO | Chairman Trustee or director | 0 | $0 |
| SM Rizvi MD | Chairman Trustee or director | 0 | $0 |
| Bilal Rayes MD | Chairman Trustee or director | 0 | $0 |
| Franklin Johnson DO | Chairman Trustee or director | 0 | $0 |
| Antoune Saad MD | Chairman Trustee or director | 0 | $0 |
| Jeffrey Karst MD | Chairman Trustee or director | 0 | $0 |
| Connor LaRose MD | Chairman Trustee or director | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 999 SAN BERNARDINO RD, UPLAND, CA 91786-4920
- In care of
- % MEDICAL STAFF OFFICE
- Signed the 990
- Dr Mark Shiu, Treasurer
- Phone
- (626) 824-1144
- Return prepared by
- LANGWASSER & CO CPAS
California records
California keeps its own records of charities and corporations. Search them by EIN 84-4886146 or by the name MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL.
- 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
Membership of hospital association employees established to provide opportunities to its members.
Program accomplishments
- Membership of hospital association employees established to provide opportunities to its members.Expenses $21,000
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
- 84-4886146
- Tax-exempt status
- 501(c)(6): Business league or chamber of commerce
- Donations deductible
- No
- Exempt since
- 2020
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Mutual and membership benefit (Y30)
- Assets (IRS master file)
- $236,412
- Income (IRS master file)
- $283,924
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $283,924 | $250,904 | $236,412 | XML |
| 990 | December 2024 | $257,433 | $249,541 | $198,561 | XML |
| 990 | December 2023 | $230,812 | $229,481 | $190,669 | XML |
| 990 | December 2022 | $240,692 | $235,896 | $189,338 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | 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 84-4886146).
Questions about MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL
- What is the EIN of MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL?
- The employer identification number (EIN) of MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL is 84-4886146.
- Is MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 2020.
- Are donations to MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL 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 MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL 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 MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who are the officers and directors of MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL?
- The 990 for the year ended December 31, 2025 lists 15 people; 0 received compensation from the organization.
- How much revenue does MEDICAL STAFF OF SAN ANTONIO REGIONAL HOSPITAL have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $283,924, expenses of $250,904 and total assets of $236,412 at year end.
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