Tax-exempt organization ยท Files a Form 5500
MASSACHUSETTS MEDICAL SOCIETY
860 WINTER ST, WALTHAM, MA 02451-1449
EIN
04-2050773
Tax-exempt status
501(c)(6) business league
IRS · 2026-09
Deductibility
Contributions are not deductible
IRS · 2026-09
IRS ruling date
1994-11
IRS · 2026-09
Latest tax period on file
2025-05
IRS · 2026-09
Revenue (latest 990)
$148,660,138
IRS · 2026-09
Assets (latest 990)
$309,838,514
IRS · 2026-09
Benefit plan 501, 2024 filing
MASSACHUSETTS MEDICAL SOCIETY WELFARE BENEFIT PLAN
DOL · 2025-09-26
Participants (start of year)
465
DOL · 2025-09-26
Plan features
code 4A4B4E4H4Q
DOL · 2025-09-26
Plan type
Single-employer plan
DOL · 2025-09-26
Business code (NAICS)
511120
DOL · 2025-09-26
Benefit plan 2, 2024 filing
THE MASSACHUSETTS MEDICAL SOCIETY SAVINGS AND INVESTMENT PLAN
DOL · 2025-09-26
Participants (start of year)
615
DOL · 2025-09-26
Plan features
code 2E2J2K
DOL · 2025-09-26