Massachusetts Medical Society
Waltham, MA 02451 · IRS data through FY2025
Revenue, expenses and net assets
Revenue Expenses Net assets
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| FY2025 | $148,660,138 | $132,886,407 | $222,972,453 |
| FY2024 | $138,011,798 | $133,285,279 | $203,934,293 |
| FY2023 | $125,843,070 | $136,334,544 | $183,698,597 |
| FY2022 | $157,568,130 | $137,145,677 | $187,668,642 |
| FY2021 | $139,442,743 | $137,447,167 | $199,587,973 |
| FY2020 | $131,501,375 | $142,729,781 | $149,006,855 |
| FY2019 | $135,083,380 | $142,636,840 | $177,426,155 |
| FY2018 | $145,878,840 | $134,510,829 | $196,571,770 |
| FY2017 | $129,809,306 | $125,913,109 | $187,623,349 |
| FY2016 | $135,235,863 | $122,845,528 | $172,404,920 |
| FY2015 | $133,781,111 | $113,671,734 | $168,903,608 |
| FY2014 | $122,636,568 | $108,548,712 | $172,126,297 |
| FY2013 | $118,549,282 | $106,368,773 | $154,163,713 |
| FY2012 | $118,538,366 | $106,943,460 | $118,018,448 |
Form 990 filings
The returns filed by Massachusetts Medical Society (EIN 04-2050773), including Form 990 PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.
Where the revenue came from
| Source | Amount | % of revenue |
|---|---|---|
| Contributions & grants | $1,573,846 | 1% |
| Program service revenue | $70,849,119 | 48% |
| Other revenue | $76,237,173 | 51% |
What the numbers show
- Other revenue made up 51% of total revenue in FY2025.
- Net assets covered about 20.1 months of expenses at the end of the reporting year.
- Total revenue rose from $118,538,366 in FY2012 to $148,660,138 in FY2025. Revenue increased in 9 and decreased in 4 of 13 year-over-year comparisons.
- Expenses exceeded revenue in 3 of 14 reported years (FY2019, FY2020, FY2023).
- The highest revenue on record here is $157,568,130 in FY2022.
- Net assets grew from $118,018,448 to $222,972,453 between FY2012 and FY2025.
Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.
About this organization
SEE FORM 990, PART III, LINE 1.
IRS status
| Ruling year | 1994 |
| Subsection | 501(c)(6) |
Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.
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