Skip to content
ProPublica Donate
ProPublica Donate

Connective Tissue Oncology Society

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Education N.E.C. (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.93M (2023)

Expenses
$1.71M (2023)

Total Assets
$1.93M (2023)

Total Liabilities
$10.9k (2023)

Source: Form 990 tax filings from 2011 to 2023

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,933,129
Expenses
$1,714,189
Net Income
$218,940
Net Assets
$1,920,734
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,101,094
57.0%
Program Services $775,769
40.1%
Investment Income $56,266
2.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $350,000
20.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,931,646
Total Liabilities $10,912
Net Assets $1,920,734
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $350,000 $0 $0
William Tap Md (Past President) $0 $0 $0
Carol Swallow Md Phd (President) $0 $0 $0
Damon Reed Md (Vice President) $0 $0 $0
Silvia Stacchioti Md (Secretary) $0 $0 $0
Robin Jones Md (Treasurer) $0 $0 $0
Bernd Kasper Md Phd (Director) $0 $0 $0
Margaret Von Mehren Md (Director) $0 $0 $0
E Alejandro Sweet Cordero Md (Director) $0 $0 $0
Inga Marie Schaefer Md (Director) $0 $0 $0
Herbert Loong Md (Director) $0 $0 $0
Chandrajit Raut Md (Director) $0 $0 $0
Noah Federman Md (Director) $0 $0 $0
Sandra D'angelo Md (Director) $0 $0 $0
Rebecca Gladdy Md Phd (Director) $0 $0 $0
Nadia Hindi Md (Director) $0 $0 $0
Torsten Nielson Md Phd (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,806,146
Expenses
$1,637,580
Net Income
$168,566
Net Assets
$1,701,794
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,183,890
65.5%
Program Services $606,503
33.6%
Investment Income $15,753
0.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $180,000
11.0%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,703,294
Total Liabilities $1,500
Net Assets $1,701,794
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $180,000 $0 $0
Rick Haas Md (Past President) $0 $0 $0
William Tap Md (President) $0 $0 $0
Carol Swallow Md (Vice President) $0 $0 $0
Damon Reed Md (Secretary) $0 $0 $0
Silvia Stacchioti Md (Treasurer) $0 $0 $0
Bernd Kasper Md Phd (Director) $0 $0 $0
Margaret Von Mehren Md (Director) $0 $0 $0
E Alejandro Sweet Cordero Md (Director) $0 $0 $0
Maureen O'sullivan Md (Director) $0 $0 $0
Dirk Strauss Md (Director) $0 $0 $0
Robin Jones Md (Director) $0 $0 $0
Winette Van Der Graaf Md (Director) $0 $0 $0
Inga Marie Schaefer Md (Director) $0 $0 $0
Herbert Loong Md (Director) $0 $0 $0
Chandrajit Raut Md (Director) $0 $0 $0
Noah Federman Md (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,139,684
Expenses
$1,165,243
Net Income
-$25,559
Net Assets
$1,533,228
Notable Sources of Revenue Percent of Total Revenue
Contributions $932,063
81.8%
Program Services $207,500
18.2%
Investment Income $121
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $180,000
15.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,534,928
Total Liabilities $1,700
Net Assets $1,533,228
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $180,000 $0 $0
Kirsten Sundby Hall Md Phd (Immediate Past President) $0 $0 $0
Rick Haas Md (President) $0 $0 $0
William Tap Md (Vice President) $0 $0 $0
Carol Swallow Md (Secretary) $0 $0 $0
Margaret Von Mehren Md (Director) $0 $0 $0
Bernd Kasper Md Phd (Director) $0 $0 $0
E Alejandro Sweet Cordero Md (Director) $0 $0 $0
Elizabeth Demicco Md Phd (Director) $0 $0 $0
Kevin Jones Md (Director) $0 $0 $0
Eugenie Kleinerman Md (Director) $0 $0 $0
Silvia Stacchioti Md (Director) $0 $0 $0
Maureen O'sullivan Md (Director) $0 $0 $0
Dirk Strauss Md (Director) $0 $0 $0
Robin Jones Md (Director) $0 $0 $0
Winette Van Der Graaf Md (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,213,869
Expenses
$1,196,532
Net Income
$1,017,337
Net Assets
$1,558,787
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,081,400
94.0%
Program Services $130,350
5.9%
Investment Income $2,119
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $167,500
14.0%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,560,887
Total Liabilities $2,100
Net Assets $1,558,787
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $167,500 $0 $0
Kirsten Sundby Hall Md Phd (President) $0 $0 $0
Rick Haas Md (Vice President) $0 $0 $0
William Tap Md (Secretary) $0 $0 $0
Carol Swallow Md (Treasurer) $0 $0 $0
Akira Kawai Md (Immediate Past President) $0 $0 $0
Damon Reed Md (Director) $0 $0 $0
Abha Gupta Md Msc Frcpc (Director) $0 $0 $0
David Kirsch Md Phd (Director) $0 $0 $0
Elizabeth Demicco Md Phd (Director) $0 $0 $0
Kevin Jones Md (Director) $0 $0 $0
Eugenie Kleinerman Md (Director) $0 $0 $0
Silvia Stacchioti Md (Director) $0 $0 $0
Maureen O'sullivan Md (Director) $0 $0 $0
Dirk Strauss Md (Director) $0 $0 $0
Robin Jones Md (Director) $0 $0 $0
Winette Van Der Graaf Md (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,069,263
Expenses
$1,339,520
Net Income
-$270,257
Net Assets
$548,010
Notable Sources of Revenue Percent of Total Revenue
Contributions $536,268
50.2%
Program Services $520,241
48.7%
Investment Income $12,754
1.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $155,000
11.6%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $687,388
Total Liabilities $139,378
Net Assets $548,010

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,311,395
Expenses
$1,388,455
Net Income
-$77,060
Net Assets
$818,075
Notable Sources of Revenue Percent of Total Revenue
Contributions $532,220
40.6%
Program Services $751,104
57.3%
Investment Income $8,979
0.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $19,092
1.5%
Notable Expenses Percent of Total Expenses
Executive Compensation $180,000
13.0%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $819,325
Total Liabilities $1,250
Net Assets $818,075

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,021,499
Expenses
$911,864
Net Income
$109,635
Net Assets
$894,365
Notable Sources of Revenue Percent of Total Revenue
Contributions $501,941
49.1%
Program Services $500,844
49.0%
Investment Income $3,614
0.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $15,100
1.5%
Notable Expenses Percent of Total Expenses
Executive Compensation $80,000
8.8%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $917,872
Total Liabilities $23,507
Net Assets $894,365

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,025,796
Expenses
$669,851
Net Income
$355,945
Net Assets
$774,864
Notable Sources of Revenue Percent of Total Revenue
Contributions $420,180
41.0%
Program Services $571,112
55.7%
Investment Income $125
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $34,379
3.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $80,000
11.9%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $786,838
Total Liabilities $11,974
Net Assets $774,864

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$770,371
Expenses
$646,818
Net Income
$123,553
Net Assets
$426,830
Notable Sources of Revenue Percent of Total Revenue
Contributions $346,868
45.0%
Program Services $408,075
53.0%
Investment Income $17
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $15,411
2.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $80,000
12.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $428,080
Total Liabilities $1,250
Net Assets $426,830

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$746,903
Expenses
$682,521
Net Income
$64,382
Net Assets
$303,277
Notable Sources of Revenue Percent of Total Revenue
Contributions $252,535
33.8%
Program Services $486,865
65.2%
Investment Income $3
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $7,500
1.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $307,132
Total Liabilities $3,855
Net Assets $303,277
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $60,000 $0 $0
David Thomas Fracp Phd (Director) $0 $0 $0
Marc Ladanyi Md (Director) $0 $0 $0
Elizabeth Baldini Md Mph (Director) $0 $0 $0
Andrew Wagner Md Phd (Director) $0 $0 $0
Doug Hawkins Md (Director) $0 $0 $0
Akira Kawai Md (Director) $0 $0 $0
Alexander Lazar Md Phd (Director) $0 $0 $0
Michelle Ghert Md Frcsc (Director) $0 $0 $0
Kristen Sundby Hall Md Phd (Director) $0 $0 $0
Ilkyu Han Md Phd (Director) $0 $0 $0
Katia Scotlandi Md (Director) $0 $0 $0
Shreyaskumar Patel Md (Past President) $0 $0 $0
Richard Gorlick Md (President) $0 $0 $0
Paolo Dei Tos Md (Vice President) $0 $0 $0
Alessandro Gronchi Md (Secretary) $0 $0 $0
Stephen L Lessnick Md Phd (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$675,560
Expenses
$817,333
Net Income
-$141,773
Net Assets
$238,895
Notable Sources of Revenue Percent of Total Revenue
Contributions $181,083
26.8%
Program Services $486,970
72.1%
Investment Income $7
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $7,500
1.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $60,000
7.3%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $240,765
Total Liabilities $1,870
Net Assets $238,895
Compensation
Key Employees and Officers Compensation Related Other
Barbara Rapp (Executive Director) $60,000 $0 $0
Axel Lecesne (Director) $0 $0 $0
Piotr Rutkowski (Director) $0 $0 $0
Beatrice Seddon (Director) $0 $0 $0
Stephen L Lessnick (Director) $0 $0 $0
David Thomas (Director) $0 $0 $0
Marc Ladanyi (Director) $0 $0 $0
Elizabeth Baldini (Director) $0 $0 $0
Andrew Wagner (Director) $0 $0 $0
Doug Hawkins (Director) $0 $0 $0
Akira Kawai (Director) $0 $0 $0
Alexander Lazar (Director) $0 $0 $0
Shreyaskumar Patel (President) $0 $0 $0
Gorlick Richard (Vice President) $0 $0 $0
Paolo Dei Tos (Secretary) $0 $0 $0
Alessandro Gronchi (Treasurer) $0 $0 $0
Jay Wunder (Past President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$723,319
Expenses
$591,318
Net Income
$132,001
Net Assets
$380,668
Notable Sources of Revenue Percent of Total Revenue
Contributions $289,769
40.1%
Program Services $428,537
59.2%
Investment Income $13
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $5,000
0.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $60,000
10.1%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $510,612
Total Liabilities $129,944
Net Assets $380,668

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$441,170
Expenses
$428,111
Net Income
$13,059
Net Assets
$248,667
Notable Sources of Revenue Percent of Total Revenue
Contributions $167,073
37.9%
Program Services $274,078
62.1%
Investment Income $15
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $4
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $55,000
12.8%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $250,017
Total Liabilities $1,350
Net Assets $248,667

Document Links

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

The data powering this website is available programmatically, via an API. Read the API documentation »