Nonprofit screen
Screen a listMammoth Hospital Foundation
Can you give?
Listed with the IRS. Every screen came back clear.
A 501(c)(3) on Publication 78 and the IRS master file.
- IRS nonprofit listing
- No issue
- Revocation
- None
- IRS files
- Agree
- Sanctions
- No match
- IRS bulletin
- No notice
- California
- Registered
- Charity type
- 509(a)(1)
$2.3Mrevenue
FY2025 · +444% in 3 yrs8 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
Against similar nonprofits FY2025
Operating margin36.3%
Months of reserve10.8mo
Revenue growth (annualized)+107.4%
Middle half of peersMedianMammoth Hospital
Where the money goes FY2025 · $1.5M spent
Programs$1.2M81%Management and general$118k8%Fundraising$173k12%990 FY2025 · Part IX line 25
Nothing to check in the filings
In its favor1
Growing faster than peers
Revenue up 107% a year since FY2017, in the top quarter of similar nonprofits.
990 Part I · peer cohort23funders
$32ka year, last 3 years
26%from its largest funder
Funder’17’18’19’20’21’22’23Donald M Slager Sunset FoundationNew in FY2023$20kCommunity Service SolutionsNew in FY2023$15kThe Crail-Johnson FoundationSince FY2018$3k$3k$3k$500$3k$3kCarson-Tahoe Health SystemOn and off$8kJohn & Mildred Holmes Family FoundationOn and off$6kCasey Family FoundationOn and off$3kDonor-advised giftsDonors not disclosed$242$185$25k$18k4 other fundersUp to $15k a year each$11k$15k$12k$750$715$456$500
FundedThrough a donor-advised fund