Nonprofit · EIN 04-3173779
MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC
Tax-exempt · WALTHAM, MA 02451
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $113,814 | $167,258 | -$53,444 | $71,203 | – | $71,203 |
| December 31, 2024 | 990-EZ | $90,456 | $68,223 | $22,233 | $124,647 | – | $124,647 |
| December 31, 2023 | 990-EZ | $44,283 | $40,414 | $3,869 | $102,414 | – | $102,414 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Membership dues
- $61,200
- Other revenue
- $52,614
Expenses
- Compensation of officers, directors and key employees
- $7,000
- Salaries, compensation and benefits (total)
- $7,000
- Professional fees and payments to contractors
- $119,600
- Printing, publications and postage
- $5,062
- Other expenses
- $35,596
- Program services (functional)
- $40,659
Balance sheet and other
- Total assets, start of year
- $124,647
- Total assets, end of year
- $71,203
- Total liabilities, end of year
- –
- Net assets, end of year
- $71,203
- Cash, savings and investments
- $71,203
- Gross receipts
- $113,814
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 |
|---|---|---|---|
| Greg DeConciliis | President | 4 | $2,500 |
| Ellen Rostron | Treasurer | 2 | $1,500 |
| Patty McKenna | Secretary | 2 | $1,500 |
| Katie Murphy | Vice President | 2 | $1,500 |
990-EZ for the year ended December 31, 2024: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Greg DeConciliis | President | 4 | $2,500 |
| Jessica McDermott | VP | 2 | $1,500 |
| Ellen Rostron | Treasurer | 2 | $1,500 |
| Patty McKenna | Secretary | 2 | $1,500 |
| Katie Murphy | Office | 2 | $1,000 |
990-EZ for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Greg DeConciliis | President | 4 | $2,500 |
| Jessica McDermott | VP | 2 | $1,500 |
| Ellen Rostron | Treasurer | 2 | $1,500 |
| Norma Bacon | Secretary | 2 | $1,500 |
Address and contacts
- Address (IRS master file)
- 71 BORDER RD STE 101, WALTHAM, MA 02451-1044
- In care of
- % ELLEN ROSTRON
- Signed the 990-EZ
- Ellen Rostron, Treasurer
- Website
- www.maasc.org
Mission
To support free standing surgery centers
Program accomplishments
- Education by our conference for business members. The average conference attendance is around 100 people. We offered a full 8 hours of industry experts speaking on various topics in healthcare.Expenses $35,596
- Ongoing state updates via emails and quarterly meetings for about 59 licensed ASCs members.Expenses $5,063
- Ongoing federal updates via emails and quarterly meetings for about 59 licensed ASCs members.
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-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
- 04-3173779
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1993
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $71,203
- Income (IRS master file)
- $113,814
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $113,814 | $167,258 | $71,203 | XML |
| 990-EZ | December 2024 | $90,456 | $68,223 | $124,647 | XML |
| 990-EZ | December 2023 | $44,283 | $40,414 | $102,414 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | 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 04-3173779).
Questions about MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC
- What is the EIN of MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC?
- The employer identification number (EIN) of MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC is 04-3173779.
- Is MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1993.
- Are donations to MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC 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 MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC 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 MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC 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 MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC?
- The 990-EZ for the year ended December 31, 2025 lists 4 people; 4 received compensation from the organization, the highest $2,500 (Greg DeConciliis, President).
- How much revenue does MASSACHUSETTS ASSOCIATION OF AMBULATORY SURGERY CENTERS INC have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $113,814, expenses of $167,258 and total assets of $71,203 at year end.
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