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Governance Register
US nonprofit · EIN 263109382 · Thorp, WIiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 263109382) - 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 tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.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 (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Mennonite Dental Clinic Inc's network

5 peoplei5 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (5). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

5 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.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 5 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Lamar S Shirk (also filed as Lamar Shirk)Company secretary2018
8 yrs
Leonard R Zimmerman (also filed as Leonard Zimmerman)President2018
8 yrs
Mark L HooverTreasurer2018
8 yrs
Mervin Z Nolt (also filed as Mervin Nolt)Director2018
8 yrs
Warren M Hoover (also filed as Warren Hoover)Vice Preside2018
8 yrs
Under 5 years5 to 6 years6 years or more

Pay and hours

year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Mark L HooverTreasurer1$7k
Leonard R ZimmermanPresident1$7k
Warren M HooverVice Preside1$4k
Lamar S ShirkSecretary1$4k
Mervin Z NoltDirector1$2k

About

Legal name
Mennonite Dental Clinic Inc
EIN
263109382
Address
W8180 County Road X, Thorp, WI, 54771-7512
State
Wisconsin
Mission
To provide excellent dental care and dental healthcare education at affordable prices for our community. (as filed on the Form 990)
Activity (NTEE)
E30 Health care
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Health Care
Size band
5 (IRS master file code)
Formed
2008
Principal officer
Leonard R Zimmerman (as named on the Form 990)
IRS ruling date
1 March 2013
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsLamar S Shirk
≥8years on the filingsLeonard R Zimmerman
≥8years on the filingsMark L Hoover
≥8years on the filingsMervin Z Nolt

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$653k
Total liabilities
$55k
Net assets or fund balances
$598k
Contributions and grants received
$0
Program service revenue
$1.4m
Employees
16

Filed finances

2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$1.4m$1.4m$14k
2023$1.5m$1.4m$98k

As filed on the IRS Form 990. US dollars.