EntityWire

EntityWire / EIN 31-4379509

Tax-exempt organization

MARIETTA MEMORIAL HOSPITAL

EIN 31-4379509. What DOL Form 5500 filings (EFAST2) and IRS Exempt Organizations Business Master File say about this entity, with the source and date on every fact. Latest record 2026-09.

Tax-exempt organization ยท Files a Form 5500

MARIETTA MEMORIAL HOSPITAL

Also filed as MEMORIAL HEALTH SYSTEM

401 MATTHEW ST, MARIETTA, OH 45750-1635

EIN

31-4379509

Tax-exempt status

501(c)(3) charitable, religious, educational

IRS · 2026-09

Deductibility

Contributions are deductible

IRS · 2026-09

Foundation classification

Hospital or medical research organization

IRS · 2026-09

IRS ruling date

1947-07

IRS · 2026-09

NTEE code

E220

IRS · 2026-09

Latest tax period on file

2025-09

IRS · 2026-09

Revenue (latest 990)

$571,778,893

IRS · 2026-09

Assets (latest 990)

$758,051,515

IRS · 2026-09

Benefit plan 1, 2024 filing

MARIETTA MEMORIAL HOSPITAL RETIREMENT PLAN

DOL · 2025-10-15

Participants (start of year)

1,035

DOL · 2025-10-15

Plan features

code 1A1I

DOL · 2025-10-15

Plan type

Single-employer plan

DOL · 2025-10-15

Business code (NAICS)

622000

DOL · 2025-10-15

Benefit plan 7, 2024 filing

MEMORIAL HEALTH SYSTEM HOSPITALS DEFINED CONTRIBUTION PLAN

DOL · 2025-10-15

From DOL Form 5500 filings (EFAST2) · IRS Exempt Organizations Business Master File. Latest record 2026-09.

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