Skip to content
Governance Register
US nonprofit · EIN 362362364 · Tinley Park, ILiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 362362364) - 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 30 June 2024: assets, liabilities, staff, website, telephone, pay, related organisations (Schedule R).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

Grand Prairie Services' network

4 people4 organisationsi4 people and 4 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (4). Violet dotted lines (4) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

4 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 in the tables. The network map shows same-name matches as likely links only, never as confirmed.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 9 voting members of its governing body on its latest Form 990 Part VI; we list 4 in Part VII (Part VII does not always name every voting member).
NameRole as filedSinceOn the board
Billie WilliamsDirector2018
8 yrs
Knitasha WashingtonDirector2022
4 yrs
Quintis MillsapsDirector2022
4 yrs
Shaun HarveyDirector2023
3 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

12 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Deborah WhiteCompany secretarysince 2023
Dr Sharronne WardPresident and CEOsince 2018
Edsel CampbellVP of Operations2023
Howard RobinsonChairmansince 2023
Kimberly RichardsonRegistered Nurse2024
Kimberly Shelton - MamonDirector2023
Kimberly Shelton-MamonVP of Financesince 2022
Leon HuddlestonTreasurersince 2023
Sharronne WardPresident & CEO2023
Shaun HarveyDirector2022
Sheila WintersVP of HRsince 2022
Timothy MooreVP of Adult Services and Operations2023

Pay and hours

year to 30 June 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
Dr Sharronne WardPresident and CEO37.5$245k
Kimberly Shelton-MamonVP of Finance37.5$115k
Kimberly RichardsonRegistered Nurse37.5$101k
Billie WilliamsDirector2$0
Knitasha WashingtonDirector2$0
Shaun HarveyDirector2$0
Quintis MillsapsDirector0$0
Howard RobinsonChairman2$0
Leon HuddlestonTreasurer2$0
Deborah WhiteSecretary0$0

About

Legal name
Grand Prairie Services
EIN
362362364
Address
17746 Oak Park Ave, Tinley Park, IL, 60477-3936
State
Illinois
Mission
The provision of holistic emotional and behavioral health services for individuals, families and communities with an emphasis on recovery and optimal functioning. (as filed on the Form 990)
Activity (NTEE)
P46Z Human services
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Human Services
Size band
8 (IRS master file code)
Formed
1956
Principal officer
Kimberly Shelton-Mamon (as named on the Form 990)
IRS ruling date
1 October 1958
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Related organisations (Schedule R)

Longest observed on the filings

≥8years on the filingsBillie Williams
≥4years on the filingsKnitasha Washington
≥4years on the filingsQuintis Millsaps
≥3years on the filingsShaun Harvey

Latest return

year to 30 June 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2024. US dollars, as filed.
Total assets
$11.7m
Total liabilities
$14.8m
Net assets or fund balances
Minus $3.1m
Contributions and grants received
$6.7m
Program service revenue
$3.4m
Employees
143

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$10.4m$11mDeficit $589k

As filed on the IRS Form 990. US dollars.