The Mast Cell Disease Society Inc
The mast cell disease society, inc is dedicated to providing multi-faceted support to patients, families, and medical professionals in our community and to leading the advancement of knowledge …
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The Mast Cell Disease Society is a non-profit organization dedicated to providing multi-faceted support to patients, families and medical professionals in our community and to leading the advancement of knowledge and research in mast cell diseases through education, advocacy and collaboration.
Verified certifications
Confirmed against the issuing authority - not self-reported.
Mission
The mast cell disease society, inc is dedicated to providing multi-faceted support to patients, families, and medical professionals in our community and to leading the advancement of knowledge and research in mast cell diseases through education, advocacy, and collaboration.
Focus areas & reach
· What they work on and whereHow it stacks up against peers
· vs. 8 similar health in United StatesConcerns
· 1 red flagWhere every $1 goes
· FY2024 · IRS 990 (FY2024)GiveRadar Analysis
Original analysis from GiveRadar's dataset of comparable organizations
GiveRadar's verified records show The Mast Cell Disease Society Inc with a complete profile, cross-referenced across 3 independent sources including the IRS.
- It has more complete governance disclosure than nearly all similar organizations, because GiveRadar has verified leadership, executive compensation, a mission statement and a founding date. See national comparisons
- GiveRadar holds 5 years of financial filings for this organization, the most recent for fiscal year 2024. See the filings
- GiveRadar's profile for The Mast Cell Disease Society Inc draws on its financial disclosures and its governance, in line with the typical health charities in the United States it tracks. View this cohort
- government registration
- financial records (5 filed years)
- disclosed leadership
- a website
- a donation page
- third-party accreditation
- a contact email
- an owner-submitted profile claim
Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.
Common questions
· Auto-generated from filings + methodologyThe Mast Cell Disease Society Inc is a registered health nonprofit based in Sterling, MA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1994 and has been operating for 32 years. Its EIN is 521959601. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 71/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $516K in annual revenue. 34 officers and directors are publicly disclosed. GiveRadar has identified 1 potential concern.
The Mast Cell Disease Society Inc's EIN (Employer Identification Number) is 521959601. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.
The Mast Cell Disease Society Inc has a GiveRadar Integrity Assessment of 71/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 71 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 85% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for health charities in United States is 90/100.
The Mast Cell Disease Society Inc is located in Sterling, MA, United States. The organization was established in 1994 and has been active for 32 years.
Based on official tax filings, The Mast Cell Disease Society Inc has $516K in annual revenue. It allocates 85% of expenses to programs and services. This is in line with the average of 89% for health charities in United States. Its revenue is below the peer average of $41M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.
The Mast Cell Disease Society Inc is classified as a Health organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a medium organization. It has $516K in annual revenue. The organization has 34 disclosed officers and directors.
GiveRadar has identified 1 potential concern for The Mast Cell Disease Society Inc. Red flags are automatically detected from official data and may include high executive compensation relative to budget, low program spending, or missing financial filings. Red flags do not necessarily mean wrongdoing but indicate areas that may warrant further review before donating.
According to GiveRadar's records, The Mast Cell Disease Society Inc holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 85% of expenses go to programs (the peer average is 89%). You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.
The Mast Cell Disease Society is a non-profit organization dedicated to providing multi-faceted support to patients, families and medical professionals in our community and to leading the advancement of knowledge and research in mast cell diseases through education, advocacy and collaboration. The Mast Cell Disease Society Inc is classified as a health organization registered in United States. The organization was founded in 1994.
Among health charities registered in United States: It allocates 85% of expenses to programs, in line with the peer average of 89%. Its annual revenue of $516K is below the peer average of $41M.
Yes, donations to The Mast Cell Disease Society Inc are generally tax-deductible in the United States. The Mast Cell Disease Society Inc is a 501(c)(3) tax-exempt organization. Its EIN is 521959601, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.
Filing history
5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.
See 5 years of revenue, expense breakdowns, and balance sheet.
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Tax-deductibility for donors
Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.
THE MAST CELL DISEASE SOCIETY INC is registered in United States. Donations from the Netherlands to charities outside the EU/EEA are generally not tax-deductible for Dutch donors unless the charity is listed on the Dutch ANBI register with foreign-recognized status.
Always confirm tax treatment with the charity directly or your tax advisor before donating.
Staff & volunteers
From filings and published profiles
Leadership
From FY2024 filing
Officers & trustees (11)
Source: Public filings
11 officers and trustees on file - free with a GiveRadar account.
Latest news
From global news sources
No recent news coverage found
News coverage will appear here when articles mention this organization.
Activity timeline
Filings and press mentions, merged
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Sources and verification
- Registration and legal identity
- Internal Revenue Service (IRS) - Tax Exempt Organization Search
- Financial filings
- IRS Form 990 filings - Fiscal year 2024 most recent on file.
- Officers and trustees
- Internal Revenue Service (IRS) - Tax Exempt Organization Search - 34 disclosed in the public registry.
- Supplementary verification
- Charity Navigator
Data freshness
What we know and don't know
Exactly which public data we hold on this charity. Our score reflects transparency, not impact.
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Financial data · FY2024 on record
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Named leadership · 34 officers on file
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Executive pay · Disclosed
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Government registration · Registered with an official registry
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Mission statement · Published
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Official website · On record
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Headquarters address · On file
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Direct contact · Email or phone published
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Tax-deductibility · Verified
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Founding date · 1994
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Programs & activitiesNo named programs listed by the charity
Methodology
GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.
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Quick facts about The Mast Cell Disease Society Inc
- What is The Mast Cell Disease Society Inc?
- The Mast Cell Disease Society Inc is a health publicly-supported charity (509(a)(2)) based in Sterling, United States. The Mast Cell Disease Society is a non-profit organization dedicated to providing multi-faceted support to patients, families and medical professionals in our community and to leading the advancement of knowledge and research in mast cell diseases through education, advocacy and collaboration.
- When was The Mast Cell Disease Society Inc founded?
- The Mast Cell Disease Society Inc was founded in 1994.
- Who leads The Mast Cell Disease Society Inc?
- Rosemary Schultz serves as Interim Treasurer.
- Where is The Mast Cell Disease Society Inc located?
- Headquartered in Sterling, MA, United States.
- What is The Mast Cell Disease Society Inc's annual budget?
- Annual revenue for fiscal year 2024 is approximately $100K-$1M. 85% of expenses go to program services.
- Is The Mast Cell Disease Society Inc trustworthy?
- The Mast Cell Disease Society Inc has a GiveRadar Integrity Assessment of 71 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
- What is The Mast Cell Disease Society Inc's registration number?
- IRS EIN: 521959601.
- What is The Mast Cell Disease Society Inc's website?
- http://www.tmsforacure.org