Massachusetts · Nonprofit
MASSACHUSETTS MEDICAL SOCIETY
MASSACHUSETTS MEDICAL SOCIETY (Massachusetts) receives grants from 3 organizations whose IRS filings report $180,000 to it, the largest being TEXAS MEDICAL ASSOCIATION SPECIAL FUNDS FOUNDATION ($95,000). 1 of them have funded it in more than one year.
- Revenue FY2025
- $149M
- Funders on record
- 3
- Grants received
- $180k
- Net assets
- $223M
What Massachusetts Medical Society does
Mission
To advance medical knowledge, to develop and maintain the highest professional and ethical standards of medical practice and health care, and to promote medical institutions formed on liberal principles for the health, benefit, and welfare of the citizens of massachusetts.
As stated on its FY2025 Form 990.
Programs
Publishing medical information:as a state medical society, the mms is in the unique position of managing a world-wide brand, nejm group. Nejm group publishes the new england journal of medicine (nejm), nejm journal watch, nejm catalyst, nejm evidence, and nejm ai. As the flagship of nejm group, nejm is recognized as the world's leading general medical journal. Nejm delivers high-quality, peer-reviewed research and interactive clinical content to physicians, educators, researchers, and the global medical community. Nejm's mission is to publish the best research and information at the intersection of biomedical science and clinical practice and to present this information in understandable, clinically useful formats that inform health care delivery and improve patient outcomes. Nejm keeps health care professionals at the leading edge of medical knowledge, helps them to gain broad understanding in their areas of interest, and provides a variety of engaging and innovative ways to learn. Nejm has more than one million readers from nearly every country.
Education: together, mms and nejm group provide unparalleled content and education services to reach practicing health care professionals and improve patient care. The Massachusetts Medical Society received accreditation with commendation by the accme and has maintained this certification of excellence since the program's inception. Through our continuing medical education program (cme), the Massachusetts Medical Society (mms) seeks to enable clinically relevant and valuable learning, framed by the best available evidence, designed to advance the quality, accessibility, safety, and cost-effectiveness of health care for patients and the public while promoting clinician professionalism and wellness. In summary, we seek to ensure optimal health and well-being of patients and providers.
Member services: the Massachusetts Medical Society (mms) is the statewide professional association for physicians and medical students, supporting approximately 23,000 members. The mms is dedicated to educating and advocating for the physicians of massachusetts and patients locally and nationally. A leadership voice in health care, the mms contributes physician and patient perspectives to influence health-related legislation at the state and federal levels. Through fy25, mms - the state's largest physician-led membership organization - continued to be a source of professional support and education for physicians while advocating for physicians and patients. Members actively participated in advancing a range of mms initiatives and activities aligned with the organization's mission.
The 3 programs described on its FY2024 Form 990, listed largest first by expense.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $287M to $325M (+13%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2019 → 2023: the base narrowed from 2 funders to 1 funder, grant income rose $25k → $80k.
From the IRS filings of MASSACHUSETTS MEDICAL SOCIETY’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
MASSACHUSETTS MEDICAL SOCIETY leans on a few funders — its largest provides 53% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
100% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund MASSACHUSETTS MEDICAL SOCIETY.
Largest funder’s share by year: 2019 80% · 2020 100% · 2023 100% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
MASSACHUSETTS MEDICAL SOCIETY draws 97% of its grant income from funders outside Massachusetts, across 3 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Government funding MASSACHUSETTS MEDICAL SOCIETY receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $205k on record.
- Department of Health and Human Services$99k
- Department of Defense$38k
- Social Security Administration$28k
- Department of Justice$25k
- Department of Veterans Affairs$8k
- Department of Agriculture$6k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like MASSACHUSETTS MEDICAL SOCIETY
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Governance
Footprint & structure
Files a return copy in 1 state
Part of a family of 7 related entities
- Mms Winter Street LLC · disregarded
- Mms Lot 2 LLC · disregarded
- Massachusetts Medical Society Charitable and Educational Fund · exempt
- Physician Health Services Inc · exempt
- Massachusetts Medical Society & Alliance Charitable Foundation · exempt
Screen this organization
A dated, signed PDF of the compliance screen for MASSACHUSETTS MEDICAL SOCIETY: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds MASSACHUSETTS MEDICAL SOCIETY?
- MASSACHUSETTS MEDICAL SOCIETY (Massachusetts) receives grants from 3 organizations whose IRS filings report $180,000 to it, the largest being TEXAS MEDICAL ASSOCIATION SPECIAL FUNDS FOUNDATION ($95,000). 1 of them have funded it in more than one year.
- How many funders does MASSACHUSETTS MEDICAL SOCIETY have?
- IRS filings report 3 organizations giving $180,000 in grants to MASSACHUSETTS MEDICAL SOCIETY, 1 of which have funded it in more than one year.
- Who is the largest funder of MASSACHUSETTS MEDICAL SOCIETY?
- TEXAS MEDICAL ASSOCIATION SPECIAL FUNDS FOUNDATION is the largest funder on record, with $95,000 in grants. The full list of funders is on this page.
- How can an organization like MASSACHUSETTS MEDICAL SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 3 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing