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Governance Register
US nonprofit · EIN 850141285 · Grants, NMiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 850141285) - 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.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay.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 PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Cibola General Hospital Corporation's network

9 people2 organisationsi9 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (9). Violet dotted lines (2) 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

9 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.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. The organisation reported 9 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Eileen Yarborough ChairChairman2018
8 yrs
Carlos TapiaMember2018
8 yrs
Dr Arnold ValdiviaMember2025
1 yr
Dr Stacey DimittChief of Medical Staff/Member2022
4 yrs
Harry Sheshki MD (also filed as Harry Sheshki)Vice Chairman2023
3 yrs
Kendra BrownMember2019
7 yrs
Kevin BranumTreasurer2021
5 yrs
Ray CarpenterMember2025
1 yr
Victoria GastonguayMember2025
1 yr
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

19 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Abdul AhmedPhysiciansince 2022
Alfredo NevarezPhysiciansince 2022
Amanda YoungPhysiciansince 2021
Analisa VillarrealPhysiciansince 2023
Angela StuderPhysician2018
Ann K ChurchPhysician2018
Arnold ValdiviaPhysiciansince 2018
Conrad CastellinoPhysiciansince 2019
ED BrownCFO2018
Jim HermesCFOsince 2019
Joseph CharlesPhysiciansince 2018
Karl GutierrezPhysiciansince 2019
Lauara BishopPhysician2021
Maria AtencioActing CEO2025
Sara ThorpPhysician2025
Snow Marika PetersenPhysiciansince 2022
Stacey DimittPhysician2021
Thomas WhelanOutgoing CEOsince 2018
Walter BridgesSurgeonsince 2018

Pay and hours

year to 30 June 2025iFrom 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 Stacey DimittChief of Medical Staff/Member40$490k$20k
Snow Marika PetersenPhysician40$488k$20k
Amanda YoungPhysician40$443k$23k
Sara ThorpPhysician40$440k$23k
Analisa VillarrealPhysician40$403k$22k
Alfredo NevarezPhysician40$400k$23k
Thomas WhelanOutgoing CEO40$311k$28k
Maria AtencioActing CEO40$213k$31k
Jim HermesCFO40$201k$10k
Eileen YarboroughChairman2$0
Harry Sheshki MDVice Chairman2$0
Kevin BranumTreasurer2$0
Kendra BrownMember2$0
Carlos TapiaMember2$0
Victoria GastonguayMember2$0
Ray CarpenterMember2$0
Dr Arnold ValdiviaMember2$0

About

Legal name
Cibola General Hospital Corporation
EIN
850141285
Address
1016 E Roosevelt Ave, Grants, NM, 87020-2118
State
New Mexico
Mission
To provide excellent health care to the community by committing to service, quality, financial stability, and growth. The organization strives to provide patients and families with quality service by implementing national best practices as standards. It also maintains financial stability to ensure its continuance and growth so that health care is accesible through the hospital and its... (as filed on the Form 990)
Activity (NTEE)
E22 Health care
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Health Care
Size band
9 (IRS master file code)
Formed
1959
Principal officer
Liz Sellers (as named on the Form 990)
IRS ruling date
1 October 1964
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsEileen Yarborough
≥8years on the filingsCarlos Tapia
≥7years on the filingsKendra Brown
≥5years on the filingsKevin Branum

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$55.3m
Total liabilities
$8.1m
Net assets or fund balances
$47.2m
Contributions and grants received
$5.1m
Program service revenue
$77.9m
Employees
361
Volunteers
8