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Nonprofit · EIN 95-3141984

MAMMOTH HOSPITAL AUXILIARY INC

Tax-exempt · MAMMOTH LAKES, CA 93546

Financials

$383K$396K2022$476K$493K2023$428K$412K2024
Revenue Expenses · by fiscal year end
Financials of MAMMOTH HOSPITAL AUXILIARY INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$428,491$411,774$16,717$1,775,681$0$1,775,681
June 30, 2024990$475,962$492,980-$17,018$1,758,964$0$1,758,964
June 30, 2023990$383,409$396,073-$12,664$1,775,982$0$1,775,982
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$425,098
Program service revenue
$1,770
Investment income
$1,623
Other revenue
$0

Expenses

Grants and similar amounts paid
$249,429
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$1,986
Occupancy
$88,905
Depreciation
$44,994
Program services (functional)
$250,922
Management and general (functional)
$53,194
Fundraising (functional)
$107,658

Balance sheet and other

Total assets, start of year
$1,758,964
Total assets, end of year
$1,775,681
Total liabilities, end of year
$0
Net assets, end of year
$1,775,681
Land, buildings and equipment
$1,500,504
Net assets without donor restrictions
$1,775,681
Gross receipts
$847,789
Employees
0
Volunteers
135
Year formed
1978
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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
Judy BornfeldImmed Past President
Trustee or director
1$0
Jan McPhersonParlimentarian
Trustee or director
1$0
Vicki MobleyMember at Large
Trustee or director
1$0
Gail MillerMember at Large
Trustee or director
1$0
Michael BornfeldMember at Large
Trustee or director
1$0
Gardiner MillerMember at Large
Trustee or director
1$0
Lorrie GouldVice President
Trustee or director, Officer
8$0
Joanne HuntSecretary
Trustee or director, Officer
8$0
Diane BeglauTreasurer
Trustee or director, Officer
8$0
Karen CurryPresident
Trustee or director, Officer
12$0
990 for the year ended June 30, 2024: 10 people
NameTitleHours / weekCompensation
Gail MillerMember at Large
Trustee or director
1$0
Vicki MobleyMember at Large
Trustee or director
1$0
Jan McPhersonParlimentarian
Trustee or director
1$0
Judy BornfeldImmed Past President
Trustee or director
1$0
Gardiner MillerMember at Large
Trustee or director
1$0
Michael BornfeldMember at Large
Trustee or director
1$0
Joanne HuntSecretary
Trustee or director, Officer
8$0
Lorrie GouldVice President
Trustee or director, Officer
8$0
Karen CurryPresident
Trustee or director, Officer
12$0
Diane BeglauTreasurer
Trustee or director, Officer
8$0
990 for the year ended June 30, 2023: 10 people
NameTitleHours / weekCompensation
Gail MillerMember at Large
Trustee or director
1$0
Vicki MobleyMember at Large
Trustee or director
1$0
Jan McPhersonParlimentarian
Trustee or director
1$0
Judy BornfeldImmed Past President
Trustee or director
1$0
Gardiner MillerMember at Large
Trustee or director
1$0
Michael BornfeldMember at Large
Trustee or director
1$0
Joanne HuntSecretary
Trustee or director, Officer
8$0
Lorrie GouldVice President
Trustee or director, Officer
8$0
Karen CurryPresident
Trustee or director, Officer
12$0
Diane BeglauTreasurer
Trustee or director, Officer
8$0

Address and contacts

Address (IRS master file)
PO BOX 1399, MAMMOTH LAKES, CA 93546-1399
In care of
% DIANE BEGLAU
Signed the 990
DIANE BEGLAU, Treasurer
Phone
(760) 934-4303
Return prepared by
ABTP Services Inc

California records

California keeps its own records of charities and corporations. Search them by EIN 95-3141984 or by the name MAMMOTH HOSPITAL AUXILIARY INC.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

To provide support for the medical needs of the community of Mammoth Lakes which includes grants for the purchase of Mammoth Hospital equipment, promoting good healthcare in the hospital and community, and sponsoring medically related education.

990 for the year ended June 30, 2025

Program accomplishments

  • Purchase hospital equipment for the Mammoth Hospital based upon their requested needs.
    Expenses $201,072
  • Provide continuing education for hospital employees, either as in-house training for staff based upon hospital approved programs or for reimbursed costs for attending continuing education courses.
    Expenses $20,000
  • Provide (6) college scholarships: (1) for $5,000, (1) for $3,500, (1) for $2,000, (1) for $1,500 and (2) for $1,000 each for students enrolled in medical field courses and maintaining a high GPA.
    Expenses $14,000
  • Support Mammoth Hospital Cancer Outreach Program for local resident travel expenses to treatment facilities outside Eastern Sierra. Advertise Blood Drive In Association with Mammoth Hospital.
    Expenses $8,757
  • Provide High School seniors with achievement awards of $125 to $250 each.
    Expenses $5,100
  • Membership appreciation officer installation, banguets, and newsletters. Also service awards are presented related to the approximately 10,000 plus hours donated by the volunteers.
    Expenses $1,493
  • Co-Sponsor with Mammoth Community Hospital Community Health Programs. Rhiannons Kids Fund to provide financial support to families who must take their child out of Mammoth Lakes to access needed medical services.
    Expenses $500
  • Baby Welcome Program, provided 100 infant onesies for new borns.

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
95-3141984
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
1978
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E22J)
Assets (IRS master file)
$1,775,681
Income (IRS master file)
$847,789

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$428,491$411,774$1,775,681XML
990June 2024$475,962$492,980$1,758,964IRS
990June 2023$383,409$396,073$1,775,982XML
990June 2022$309,629$277,932$1,788,646IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2018–––IRS
990June 2017–––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 95-3141984).

Questions about MAMMOTH HOSPITAL AUXILIARY INC

What is the EIN of MAMMOTH HOSPITAL AUXILIARY INC?
The employer identification number (EIN) of MAMMOTH HOSPITAL AUXILIARY INC is 95-3141984.
Is MAMMOTH HOSPITAL AUXILIARY INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1978.
Are donations to MAMMOTH HOSPITAL AUXILIARY INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MAMMOTH HOSPITAL AUXILIARY 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 MAMMOTH HOSPITAL AUXILIARY INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MAMMOTH HOSPITAL AUXILIARY INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who are the officers and directors of MAMMOTH HOSPITAL AUXILIARY INC?
The 990 for the year ended June 30, 2025 lists 10 people; 0 received compensation from the organization.
How much revenue does MAMMOTH HOSPITAL AUXILIARY INC have?
On its 990 for the year ended June 30, 2025 it reported revenue of $428,491, expenses of $411,774 and total assets of $1,775,681 at year end.

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