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US nonprofit · EIN 475157492 · Bartlesville, OKiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 475157492) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PF), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Mason Green Foundation

Donations deductible
Total assets
$5k
IRS master file
Directors and trustees
3
8.4 years on average
Left since last filing
0
no seats appear to have opened
Activity
G30
Voluntary health associations and medical disciplines
Filings on record
6
latest 2024
Renewal outlook
Low current likelihood
score 6 of 100
How am I connected?

Mason Green Foundation's network

3 peoplei3 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (3). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

3 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record.
NameRole as filedSinceOn the board
Jeffrey A Green (also filed as Jeffrey Green)President2018
8 yrs
Monica G Green (also filed as Monica Green)Company secretary2018
8 yrs
Stewart L Mueller (also filed as Stewart Mueller)Director2018
8 yrs
Under 5 years5 to 6 years6 years or more

About

Legal name
Mason Green Foundation
EIN
475157492
Address
24206 N 3962 Rd, Bartlesville, OK, 74006-0235
State
Oklahoma
Activity (NTEE)
G30 Voluntary health associations and medical disciplines
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Voluntary Health Associations & Medical Disciplines
Size band
1 (IRS master file code)
IRS ruling date
1 March 2016
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2024
IRS Publication 78
PF (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsJeffrey A Green
≥8years on the filingsMonica G Green
≥8years on the filingsStewart L Mueller

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$0$5kDeficit $5k

As filed on the IRS Form 990. US dollars.