The Foundation provides orthopaedic surgery services to patients at Boston Children's Hospital and at satellite locations. The mission strives to provide care for patients with a wide range of developmental, congenital, neuromuscular, and post (see Schedule O) traumatic problems of the musculoskeletal system. The Foundation also provides care for patients in need of orthopaedic services, regardless of their ability to pay.
Key facts about Children's Orthopaedic Surgery Foundatio
In short: Children's Orthopaedic Surgery Foundatio gave $6.1M across 2 grants in 2025 (avg $3.0M), mostly in Massachusetts. Source: 2025 IRS Form 990.
- EIN
- 04-2943146
- Latest 990 filing
- Form 990, 2025
- Annual giving (2025)
- $6,054,000
- Grants made (2025)
- 2
- Average grant
- $3,027,000
- Median grant
- $3,027,000
- Total assets
- $129,380,424
- Primary geography
- Massachusetts (99% of itemized 2025 grant dollars)
Data from IRS Form 990, 2025; updated September 2026.
Financial Overview
From 2025 IRS Form 990 · View filing
Total Assets
$129.4M
-13.2% YoY
Annual Giving
$6.1M
-76.8% YoY
Grant Count
2
-66.7% YoY
Avg Grant Size
$3.0M
-30.4% YoY
How Children's Orthopaedic Surgery Foundatio gives
- Giving grew 4705% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
About Children's Orthopaedic Surgery Foundatio
Based on IRS filings
Children's Orthopaedic Surgery Foundatio is a nonprofit organization focused on Health, based in Boston, MA. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $129.4M in total assets. In 2025, it awarded 2 grants totaling $6.1M. Net investment income was $1.1M.
Focus Areas
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 2 itemized 2025 grant dollars.
Cities
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
Grant Size Distribution
29 grants across all recorded years
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Boston Children's Hospital Boston, MA | General Support | $6,017,500 |
| Orthopaedic Research and Education Foundation Rosemont, IL | General Support | $36,500 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $129,380,424 | $149,096,569 | $148,452,842 |
| Revenue | $93,476,479 | $89,580,176 | $76,080,289 |
| Expenses | $101,111,212 | $105,924,064 | $84,602,503 |
| Qualifying Distributions | — | — | — |
| Net Investment Income | $1,149,490 | $4,709,849 | $1,055,802 |
| Distributable Amount | — | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2019 (received by the IRS August 17, 2020)
- Added Form 990 for fiscal year 2025 (received by the IRS August 14, 2026)
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Officers and directors from IRS filings
Children's Orthopaedic Surgery Foundatio is led by Martha M Murray MD, President since 2021 (on filings since 2019); 39 of 42 officers listed in 2025 are compensated.
Officers on the 2025 filing
Martha M Murray MD
President
Director → President, 2021
On filings since 2019
55 hrs/week
$632K (2019) → $909K (2025)
Andrea Bauer MD
Director
On filings since 2019
60 hrs/week
$757K (2019) → $1.1M (2025)
Andrea Straccolini MD
Director
Physician → Director, 2025
On filings since 2019
60 hrs/week
$639K (2019) → $726K (2025)
Benjamin J Shore MD
Director
On filings since 2019
60 hrs/week
$1M (2019) → $1.8M (2025)
Benton E Heyworth MD
Director
On filings since 2019
60 hrs/week
$1.5M (2019) → $1.7M (2025)
Brian Snyder MD
Director
On filings since 2019
60 hrs/week
$588K (2019) → $562K (2025)
Carley Vuillermin MD
Director
On filings since 2019
60 hrs/week
$932K (2019) → $1.2M (2025)
Collin May MD
Director
On filings since 2019
60 hrs/week
$939K (2019) → $1.3M (2025)
Daniel J Hedequist MD
Director
On filings since 2019
60 hrs/week
$1.2M (2019) → $1.8M (2025)
Dennis E Kramer MD
Director
On filings since 2019
60 hrs/week
$1.1M (2019) → $1.4M (2025)
John B Emans MD
Director
On filings since 2019
60 hrs/week
$825K (2019) → $206K (2025)
M Timothy Hresko MD
Director
On filings since 2019
60 hrs/week
$822K (2019) → $895K (2025)
Matthew D Milewski MD
Director
On filings since 2019
60 hrs/week
$620K (2019) → $1.5M (2025)
Megan Hannon MD
Director
Director → Physician, 2021
Physician → Director, 2022
On filings since 2019
60 hrs/week
$610K (2019) → $742K (2025)
Michael B Millis MD
Director
On filings since 2019
60 hrs/week
$454K (2019) → $150K (2025)
Mininder S Kocher MD
Director
On filings since 2019
55 hrs/week
$1.8M (2019) → $2.5M (2025)
Susan Mahan MD
Director
On filings since 2019
60 hrs/week
$452K (2019) → $531K (2025)
Travis H Matheney MD
Director
On filings since 2019
60 hrs/week
$691K (2019) → $1.1M (2025)
Yi-Meng Yen MD
Director
On filings since 2019
60 hrs/week
$928K (2019) → $1.5M (2025)
Young-Jo Kim MD
Director
Clerk → Director, 2020
On filings since 2019
60 hrs/week
$1M (2019) → $1.6M (2025)
Colyn J Watkins MD
Director
On filings since 2020
60 hrs/week
$895K (2020) → $1.1M (2025)
Craig Birch MD
Director
On filings since 2020
60 hrs/week
$118K (2020) → $1.4M (2025)
Melissa Christino MD
Director
On filings since 2020
55 hrs/week
$442K (2020) → $693K (2025)
William J Meehan III MD
Director
Physician → Director, 2025
On filings since 2020
55 hrs/week
$946K (2020) → $667K (2025)
Grant Hogue MD
Director
On filings since 2021
60 hrs/week
$297K (2021) → $1.7M (2025)
Kiriaki C White MD
Director
On filings since 2022
60 hrs/week
$408K (2022) → $442K (2025)
Rebecca Vieira MD
Director
On filings since 2023
60 hrs/week
$502K (2023) → $569K (2025)
Aristides I Cruz MD
Director
On filings since 2024
60 hrs/week
$676K (2025)
Benjamin K Gundlach MD
Director
On filings since 2024
60 hrs/week
$159K (2025)
Joleen Weissert MD
Director
On filings since 2024
60 hrs/week
$107K (2025)
Kristin S Livingston MD
Director
On filings since 2024
60 hrs/week
$357K (2024) → $957K (2025)
Michelle Mo MD
Director
On filings since 2024
60 hrs/week
$879K (2024) → $1.2M (2025)
David Fogelman MD
Director
New on the 2025 filing
60 hrs/week
No compensation reported
David Liu MD
Director
New on the 2025 filing
60 hrs/week
No compensation reported
Jeansol Kang MD
Director
New on the 2025 filing
60 hrs/week
No compensation reported
Donald S Bae MD
Treasurer
Treasurer → Treasurer & President, 2021
Treasurer & President → Treasurer, 2022
On filings since 2019
60 hrs/week
$996K (2019) → $1.4M (2025)
Eduardo N Novais MD
Physician
Director → Physician, 2025
On filings since 2019
60 hrs/week
$1.1M (2019) → $1.9M (2025)
Lyle J Micheli MD
Physician
Director → Physician, 2021
On filings since 2019
2 hrs/week
$1.8M (2019) → $652K (2025)
Samantha A Spencer MD
Clerk
Director → Clerk, 2020
On filings since 2019
60 hrs/week
$552K (2019) → $686K (2025)
Thomas J Hart
Employee
Key Executive → Employee, 2020
On filings since 2019
1 hr/week
$522K (2019) → $471K (2025)
Kathryn Ackerman MD
Physician
On filings since 2022
40 hrs/week
$515K (2022) → $995K (2025)
Peter Kriz MD
Physician
New on the 2025 filing
20 hrs/week
$487K (2025)
Former officers (9)
- Former: Lawrence I Karlin MD (2019–2024) — Director
- Former: Michael Beasley MD (2019–2024) — Director
- Former: Sarah Jackson MD (2022–2024) — Physician
- Former: James R Kasser MD (2019–2023) — Director
- Former: Michael O'Brien MD (2019–2023) — Physician
- Former: Kristin Whitney MD (2022–2023) — Director
- Former: Peter M Waters MD (2019–2022) — Former Officer
- Former: Pierre d'Hemecourt MD (2019–2021) — Physician
- Former: Michael P Glotzbecker MD (2019–2020) — Director
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2025 IRS filing
Frequently asked questions about Children's Orthopaedic Surgery Foundatio
How much does Children's Orthopaedic Surgery Foundatio give each year?
Children's Orthopaedic Surgery Foundatio gave $6.1M across 2 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $26.1M across 6 grants.
How large is Children's Orthopaedic Surgery Foundatio?
Children's Orthopaedic Surgery Foundatio reported $129.4M in total assets on its 2025 IRS Form 990. Its revenue that year was $93.5M.
What is Children's Orthopaedic Surgery Foundatio?
Children's Orthopaedic Surgery Foundatio is a nonprofit organization focused on Health, based in Boston, MA. It holds $129.4M in total assets as of 2025.
Where does Children's Orthopaedic Surgery Foundatio operate?
Children's Orthopaedic Surgery Foundatio has awarded grants in California, Illinois, Massachusetts, Maryland, Minnesota, Utah.
What is Children's Orthopaedic Surgery Foundatio's EIN?
Children's Orthopaedic Surgery Foundatio's EIN (Employer Identification Number) is 04-2943146. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Here's the math on researching Children's Orthopaedic Surgery Foundatio by hand.
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Children's Orthopaedic Surgery Foundatio down — hundreds of funders to go?