Liabilities / Assets
69th percentile
Higher debt load relative to assets than 69% of similar nonprofits.
Mastic Volunteer Ambulance Company
EIN 11-3474702 • 501(c)3 • Mastic, NY
Profile
The primary exempt purpose of the mastic volunteer ambulance company inc. Is to render volunteer ambulance and resecue services to the residents of the mastic community on a non-discriminatory basis. The organization is responsible for acquiring and maintaining equipment such as ambulances; providing first aid training to volunteers and members of the community; maintaining garage facilities; recruiting volunteers; maintaining an organization structure; hiring paid first responders to ensure adequate 24/7 emergency coverage; and fostering good community relations and awareness of services provided.
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.29x
Liabilities / Revenue
78th percentile
Higher debt load relative to revenue than 78% of similar nonprofits.
Net Margin
72nd percentile
Higher net margin than 72% of similar nonprofits.
Top Officer Pay
67th percentile
Higher top officer pay than 67% of similar nonprofits.
Top officer pay equals 5.3% of source-year revenue.
Asset Growth
57th percentile
Faster asset growth than 57% of similar nonprofits.
Revenue Growth
52nd percentile
Faster revenue growth than 52% of similar nonprofits.
Balance Sheet
Assets
Up$4,436,839
Up $267,216 (+6.4%) from 2023
Liabilities
Down$1,282,482
Down $84,560 (-6.2%) from 2023
Net Assets
Up$3,154,357
Up $351,776 (+13%) from 2023
Revenue
Up$2,628,607
Up $218,875 (+9.1%) from 2023
Expenses
Up$2,181,529
Up $4,411 (+0.2%) from 2023
Net Income
Up$447,078
Up $214,464 (+92%) from 2023
Trend Graphs
Filings
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
- Assets
- $4,436,839
- Liabilities
- $1,282,482
- Net assets
- $3,154,357
- Revenue
- $2,628,607
- Expenses
- $2,181,529
- Net income
- $447,078
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Jan 1, 2024 to Dec 31, 2024
- Signed
- Oct 21, 2025
- Return Version
- 2024v5.0
- Gross Receipts
- $2,628,607
Mission and Program Overview
Mission
The primary exempt purpose of the mastic volunteer ambulance company inc. Is to render volunteer ambulance and resecue services to the residents of the mastic community on a non-discriminatory basis. The organization is responsible for acquiring and maintaining equipment such as ambulances; providing first aid training to volunteers and members of the community; maintaining garage facilities; recruiting volunteers; maintaining an organization structure; hiring paid first responders to ensure adequate 24/7 emergency coverage; and fostering good community relations and awareness of services provided.
The primary exempt purpose of mastic volunteer ambulance company inc. Is to render volunteer ambulance and rescue services to the residents of the mastic community on a non-discriminatory basis.
Balance Sheet Detail
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $2,530,593 | $2,435,291 | ▼ $95,302 |
| Savings and Temporary Cash Investments | $631,330 | $510,133 | ▼ $121,197 |
| Accounts Receivable | $165,419 | $170,189 | ▲ $4,770 |
| Cash and Non-Interest-Bearing Accounts | $56,853 | $33,820 | ▼ $23,033 |
| Prepaid Expenses and Deferred Charges | $36,683 | $24,614 | ▼ $12,069 |
| Total Assets | $4,169,623 | $4,436,839 | ▲ $267,216 |
| Other Assets Total | $748,745 | $1,262,792 | ▲ $514,047 |
| Liabilities | |||
| Other Liabilities | $713,489 | $1,242,838 | ▲ $529,349 |
| Deferred Revenue | $530,851 | - | - |
| Accounts Payable and Accrued Expenses | $106,900 | $39,644 | ▼ $67,256 |
| Unsecured Notes Loans Payable | $15,802 | - | - |
| Total Liabilities | $1,367,042 | $1,282,482 | ▼ $84,560 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $2,802,581 | $3,154,357 | ▲ $351,776 |
| Total Net Assets Fund Balance | $2,802,581 | $3,154,357 | ▲ $351,776 |
| Total Liabilities and Net Assets / Fund Balance | $4,169,623 | $4,436,839 | ▲ $267,216 |
Asset Categories
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $2,138,363 | - | $2,138,363 |
| Leasehold Improvements | $296,928 | - | $296,928 |
| Other Assets Org | $1,262,792 | - | - |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Eugene T Ommundsen | Treasurer/se | PT | $139,721 | $139,721 |
Board Members and Trustees
| Name | Title |
|---|---|
| Kathy Pfiel | Chairperson |
| Michael Ryan | President |
| Adrian Quinones | Director |
| Nicole Crisci | Director |
| Tracy Ommundsen | Director |
Revenue and Support
Revenue Composition
- Contributions and Grants
- $130,000
- Program Service Revenue
- $1,794,454
- Investment Income
- $38
- Other Revenue
- $704,115
- Change in Net Assets
- $447,078
Audited Revenue Reconciliation
- Revenue per Audited Statements
- $2,628,607
- Total Revenue per Audited Statements
- $2,628,607
- Total Revenue per Form 990
- $2,628,607
Expenses and Functional Allocation
Major Expense Lines
| Line Item | Amount |
|---|---|
| Other Expenses | $1,179,807 |
| Salaries, Compensation, and Employee Benefits | $1,001,722 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
Functional Expense Allocation
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $784,437 | - | - | $784,437 |
| Insurance | $234,268 | $6,922 | - | $241,190 |
| All Other Expenses | $180,474 | - | - | $180,474 |
| Current Officers, Directors, Trustees, and Key Employees | $64,157 | $75,564 | - | $139,721 |
| Fees for Services Other | - | $125,211 | - | $125,211 |
| Payroll Taxes | $71,222 | $6,342 | - | $77,564 |
| Other Expenses | $59,513 | $1,758 | - | $61,271 |
| Office Expenses | $47,261 | $1,396 | - | $48,657 |
| Fees for Services Accounting | - | $21,746 | - | $21,746 |
| Interest | - | $538 | - | $538 |
| Total Functional Expenses | $1,939,509 | $242,020 | $0 | $2,181,529 |
Audited Expense Reconciliation
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $2,181,529 |
| Total Expenses per Audited Statements | $2,181,529 |
| Total Expenses per Form 990 | $2,181,529 |
Fundraising, Events, and Gaming
- Fundraising activities
- No
- Gaming activities
- No
- Professional fundraiser used
- No
Fundraising and Gaming Totals
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
Political and Lobbying Activity
- Political campaign activity
- No
- Lobbying activity
- No
- Subject to proxy tax
- No
Debt and Bond Financing
Other Reported Liabilities
| Liability | Amount |
|---|---|
| Due to Other Governments | $1,242,838 |
Governance and Compliance
Governance Checklist
- Compiled or reviewed by an accountant
- No
- Annual disclosure for covered persons
- Yes
- Audit committee
- No
- Backup withholding compliance
- Yes
- Business relationship with 35% controlled entity
- No
- Business relationship with family members
- No
- Business relationship with organization members
- No
- Material changes to governing documents
- No
- Compensation from other sources disclosed
- No
- CEO compensation reviewed
- No
- Other officer compensation reviewed
- No
- Conflict-of-interest policy
- Yes
- Audited financial statements prepared
- No
- Key decisions subject to board approval
- No
- Management duties delegated
- No
Governance Explanations
Form 990, Page 6, Part VI, Line 2
“Eugene ommundsen tracey ommundsen treasurer director spouse”
Form 990, Page 6, Part VI, Line 6
“All volunteers in good standing are considered members of the ambulance company. A member in good standing must have the appropriate training; respond to an adequate number of calls and trainings; and adhere to company policies and practices in order to maintain their standing.”
Form 990, Page 6, Part VI, Line 7A
“Members in good standing vote for officers to a one year term and directors to a five year term.”
Form 990, Page 6, Part VI, Line 8B
“Documentation by committee explanation no committee meeting minutes are maintained since there are no committees. All activities are governed by the board of directors and officers. However, board meeting minutes are maintained.”
Form 990, Page 6, Part VI, Line 11B
“Copies of the 990 will be reviewed by all officers and directors at the monthly board meeting prior to filing or made available prior to filing for review before filing. Tax preparer will be asked to attend the meeting if the board feels it is necessary. The board will acknowledge the review and acceptance of the 990 as presented and note in board minutes.”
Form 990, Page 6, Part VI, Line 12C
“Potential conflicts are discussed at board meetings. If a potential conflict exists, the board member or officer involved will abstain from the vote related to the issue where a conflict may exist.”
Form 990, Page 6, Part VI, Line 19
“All relevant documents including policies, tax returns, 1023 application and financial statements are available at headquarters for inspection during normal business hours.”
Filing and Contact Details
Filer
- Filer Name
- Mastic Volunteer Ambulance Company
- EIN
- 11-3474702
- Phone
- 6312814357
- Address
- 1630 MONTAUK HIGHWAY, MASTIC, NY 11950
Signing Officer
- Name
- Eugene T Ommundsen
- Title
- Treasurer/secretary
- Phone
- 6312814357
- Signed
- 2025-10-21
- Discuss with paid preparer
- Yes
Organization Details
- Principal Officer
- Eugene T Ommundsen
- Formed
- 1958
- Legal Domicile
- Ny
- Voting Board Members
- 5
- Independent Board Members
- 5
- Employees
- 42
- Volunteers
- 77
Preparer
- Firm
- DIAPOULES & FEINSTEIN CPA'S PC
- Address
- 900 WALT WHITMAN ROAD STE 200, MELVILLE, NY 11747
- Preparer
- James Diapoules
- Phone
- 6315471040
Supplemental Narrative
Additional Explanations
FORM 990 - ORGANIZATION'S MISSION
“The primary exempt purpose of the mastic volunteer ambulance company inc. Is to render volunteer ambulance and resecue services to the residents of the mastic community on a non-discriminatory basis. The organization is responsible for acquiring and maintaining equipment such as ambulances; providing first aid training to volunteers and members of the community; maintaining garage facilities; recruiting volunteers; maintaining an organization structure; hiring paid first responders to ensure adequate 24/7 emergency coverage; and fostering good community relations and awareness of services provided.”
Form 990, Part XI, Line 9
“Change in assets per appraisal -95,302”
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| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 694920 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 4000 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 2 | 3025 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 694920 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 4000 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 2 | 3025 |
| IRS990/OtherRevenueTotalAmt | 0 | 704115 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 784437 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 784437 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 6342 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 71222 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 77564 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 36683 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 24614 |
| IRS990/PrincipalOfficerNm | 0 | EUGENE T OMMUNDSEN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TOWN OF BROOKHAVEN |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1794454 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1794454 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 75432 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYInvestmentIncomeAmt | 0 | 40 |
| IRS990/PYOtherExpensesAmt | 0 | 1192454 |
| IRS990/PYOtherRevenueAmt | 0 | 658456 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 1675804 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 232614 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 984664 |
| IRS990/PYTotalExpensesAmt | 0 | 2177118 |
| IRS990/PYTotalRevenueAmt | 0 | 2409732 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 447078 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | true |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | true |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RevenueAmt | 0 | 2498607 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 631330 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 510133 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 1924454 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1675804 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1577439 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1526901 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1482428 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 8187026 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 10060356 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 1.00000 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 8187026 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 1924454 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1675804 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1577439 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1526901 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1482428 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 8187026 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 8187026 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 2138363 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 2138363 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 2181529 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 296928 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 296928 |
| IRS990ScheduleD/OtherAssetsOrgGrp/BookValueAmt | 0 | 1262792 |
| IRS990ScheduleD/OtherAssetsOrgGrp/Desc | 0 | GOVERNMENT FUND RESERVES |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 1242838 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | DUE TO OTHER GOVERNMENTS |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 2628607 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 2435291 |
| IRS990ScheduleD/TotalBookValueOtherAssetsAmt | 0 | 1262792 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 2181529 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 1242838 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 2628607 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 2628607 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 2181529 |
| IRS990/ScheduleJRequiredInd | 0 | false |
| IRS990/ScheduleORequiredInd | 0 | true |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | THE PRIMARY EXEMPT PURPOSE OF THE MASTIC VOLUNTEER AMBULANCE COMPANY INC. IS TO RENDER VOLUNTEER AMBULANCE AND RESECUE SERVICES TO THE RESIDENTS OF THE MASTIC COMMUNITY ON A NON-DISCRIMINATORY BASIS. THE ORGANIZATION IS RESPONSIBLE FOR ACQUIRING AND MAINTAINING EQUIPMENT SUCH AS AMBULANCES; PROVIDING FIRST AID TRAINING TO VOLUNTEERS AND MEMBERS OF THE COMMUNITY; MAINTAINING GARAGE FACILITIES; RECRUITING VOLUNTEERS; MAINTAINING AN ORGANIZATION STRUCTURE; HIRING PAID FIRST RESPONDERS TO ENSURE ADEQUATE 24/7 EMERGENCY COVERAGE; AND FOSTERING GOOD COMMUNITY RELATIONS AND AWARENESS OF SERVICES PROVIDED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | EUGENE OMMUNDSEN TRACEY OMMUNDSEN TREASURER DIRECTOR SPOUSE |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | ALL VOLUNTEERS IN GOOD STANDING ARE CONSIDERED MEMBERS OF THE AMBULANCE COMPANY. A MEMBER IN GOOD STANDING MUST HAVE THE APPROPRIATE TRAINING; RESPOND TO AN ADEQUATE NUMBER OF CALLS AND TRAININGS; AND ADHERE TO COMPANY POLICIES AND PRACTICES IN ORDER TO MAINTAIN THEIR STANDING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | MEMBERS IN GOOD STANDING VOTE FOR OFFICERS TO A ONE YEAR TERM AND DIRECTORS TO A FIVE YEAR TERM. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | DOCUMENTATION BY COMMITTEE EXPLANATION NO COMMITTEE MEETING MINUTES ARE MAINTAINED SINCE THERE ARE NO COMMITTEES. ALL ACTIVITIES ARE GOVERNED BY THE BOARD OF DIRECTORS AND OFFICERS. HOWEVER, BOARD MEETING MINUTES ARE MAINTAINED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | COPIES OF THE 990 WILL BE REVIEWED BY ALL OFFICERS AND DIRECTORS AT THE MONTHLY BOARD MEETING PRIOR TO FILING OR MADE AVAILABLE PRIOR TO FILING FOR REVIEW BEFORE FILING. TAX PREPARER WILL BE ASKED TO ATTEND THE MEETING IF THE BOARD FEELS IT IS NECESSARY. THE BOARD WILL ACKNOWLEDGE THE REVIEW AND ACCEPTANCE OF THE 990 AS PRESENTED AND NOTE IN BOARD MINUTES. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | POTENTIAL CONFLICTS ARE DISCUSSED AT BOARD MEETINGS. IF A POTENTIAL CONFLICT EXISTS, THE BOARD MEMBER OR OFFICER INVOLVED WILL ABSTAIN FROM THE VOTE RELATED TO THE ISSUE WHERE A CONFLICT MAY EXIST. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 7 | ALL RELEVANT DOCUMENTS INCLUDING POLICIES, TAX RETURNS, 1023 APPLICATION AND FINANCIAL STATEMENTS ARE AVAILABLE AT HEADQUARTERS FOR INSPECTION DURING NORMAL BUSINESS HOURS. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 8 | CHANGE IN ASSETS PER APPRAISAL -95,302 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990 - ORGANIZATION'S MISSION |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 6, PART VI, LINE 2 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 6, PART VI, LINE 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 7A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PAGE 6, PART VI, LINE 8B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | FORM 990, PAGE 6, PART VI, LINE 12C |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 7 | FORM 990, PAGE 6, PART VI, LINE 19 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 8 | FORM 990, PART XI, LINE 9 |
| IRS990ScheduleR/AssetExchangeInd | 0 | false |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | false |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | false |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | false |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | false |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | false |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 0 | false |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 0 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | MASTIC AMBULANCE BENEVOLENT ASSOCIA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 0 | 203308192 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 0 | 501C3 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/LegalDomicileStateCd | 0 | NY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PrimaryActivitiesTxt | 0 | COMM EVENT |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PublicCharityStatusTxt | 0 | 7 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/AddressLine1Txt | 0 | 1630 MONTAUK HIGHWAY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/CityNm | 0 | MASTIC |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 0 | 11950 |
| IRS990ScheduleR/LoansOrGuaranteesFromOthOrgInd | 0 | false |
| IRS990ScheduleR/LoansOrGuaranteesToOtherOrgInd | 0 | false |
| IRS990ScheduleR/PaidEmployeesSharingInd | 0 | false |
| IRS990ScheduleR/PerformOfServicesByOtherOrgInd | 0 | false |
| IRS990ScheduleR/PerformOfServicesForOthOrgInd | 0 | false |
| IRS990ScheduleR/ReceiptOfIntAnntsRntsRyltsInd | 0 | false |
| IRS990ScheduleR/ReimbursementPaidByOtherOrgInd | 0 | false |
| IRS990ScheduleR/ReimbursementPaidToOtherOrgInd | 0 | false |
| IRS990ScheduleR/RentalOfFacilitiesToOthOrgInd | 0 | false |
| IRS990ScheduleR/RentalOfFcltsFromOthOrgInd | 0 | false |
| IRS990ScheduleR/SharingOfFacilitiesInd | 0 | false |
| IRS990ScheduleR/TransferFromOtherOrgInd | 0 | false |
| IRS990ScheduleR/TransferToOtherOrgInd | 0 | false |
| IRS990/SchoolOperatingInd | 0 | false |
| IRS990/SignificantChangeInd | 0 | false |
| IRS990/SignificantNewProgramSrvcInd | 0 | false |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | false |
| IRS990/SubjectToProxyTaxInd | 0 | false |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | false |
| IRS990/TaxablePartyNotificationInd | 0 | false |
| IRS990/TaxExemptBondsInd | 0 | false |
| IRS990/TerminateOperationsInd | 0 | false |
| IRS990/TotalAssetsBOYAmt | 0 | 4169623 |
| IRS990/TotalAssetsEOYAmt | 0 | 4436839 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 4169623 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 4436839 |
| IRS990/TotalCompGreaterThan150KInd | 0 | false |
| IRS990/TotalContributionsAmt | 0 | 130000 |
| IRS990/TotalEmployeeCnt | 0 | 42 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 242020 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 1939509 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 2181529 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 1367042 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 1282482 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 1367042 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 1282482 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 2802581 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 3154357 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 1939509 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 1794454 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 139721 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2498607 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 2628607 |
| IRS990/TotalVolunteersCnt | 0 | 77 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 4169623 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 4436839 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | false |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | false |
| IRS990/UnsecuredNotesLoansPayableGrp/BOYAmt | 0 | 15802 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 1630 MONTAUK HIGHWAY |
| IRS990/USAddress/CityNm | 0 | MASTIC |
| IRS990/USAddress/StateAbbreviationCd | 0 | NY |
| IRS990/USAddress/ZIPCd | 0 | 11950 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 5 |
| IRS990/VotingMembersIndependentCnt | 0 | 5 |
| IRS990/WebsiteAddressTxt | 0 | N/A |
| IRS990/WhistleblowerPolicyInd | 0 | true |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | true |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | EUGENE T OMMUNDSEN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER/SECRETARY |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6312814357 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-10-21 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | MASTIC VOLUNTEER AMBULANCE COMPANY |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | MAST |
| ReturnHeader/Filer/EIN | 0 | 113474702 |
| ReturnHeader/Filer/PhoneNum | 0 | 6312814357 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 1630 MONTAUK HIGHWAY |
| ReturnHeader/Filer/USAddress/CityNm | 0 | MASTIC |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | NY |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 11950 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | true |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 113359171 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | DIAPOULES & FEINSTEIN CPA'S PC |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 900 WALT WHITMAN ROAD STE 200 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | MELVILLE |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | NY |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 11747 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 6315471040 |
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