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North American Thrombosis Forum Inc

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: Educational Institutions and Related Activities / Specialized Education Institutions (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$1.86M (2023)

Expenses
$1.38M (2023)

Total Assets
$3.76M (2023)

Total Liabilities
$5.78k (2023)

Source: Form 990 tax filings from 2010 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-PF
Revenue
$1,862,280
Expenses
$1,378,174
Net Income
$484,106
Net Assets
$3,757,096
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $597,399
32.1%
Interest Revenue $82
0.0%
Dividends $87,143
4.7%
Sales of Assets $1,177,656
63.2%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,333,287
96.7%
Compensation of Officers* $186,477
13.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $3,762,873
Total Liabilities $5,777
Net Assets $3,757,096
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $183,853 $16,991
Aviva Schwartz (Content & Education) $112,922 $3,373
Courtney Anderson (Director Of Operatio) $100,575 $10,771
Margaret Newberg (Director Of Marketin) $85,766 $10,319
Christian Ruff Md Mph (Director; President 4/28/23) $1,500 $3,725
Samuel Z Goldhaber Md (President End 4/28/23) $0 $3,725
John Fanikos Rph Mba (Treasurer) $0 $3,791
Jawed Fareed Phd (Vice President) $0 $3,725
Gregory Piazza Md (Director; Edu. Chair End 4/28/23) $0 $3,725
Joelle Hochman (Director) $0 $4,086
Jelena Spyropoulos (Director) $0 $4,422
Nathan Connell (Director Start 5/2023) $0 $3,725

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$959,226
Expenses
$1,455,319
Net Income
-$496,093
Net Assets
$3,975,044
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $689,170
71.8%
Interest Revenue $1,044
0.1%
Dividends $82,599
8.6%
Sales of Assets $131,519
13.7%
Other Income $54,894
5.7%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,341,685
92.2%
Compensation of Officers* $175,202
12.0%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $4,054,757
Total Liabilities $79,713
Net Assets $3,975,044
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $169,731 $15,820
Aviva Schwartz (Content & Education) $104,332 $1,418
Courtney Anderson (Director Of Operatio) $93,611 $10,156
Margaret Newberg (Director Of Marketin) $81,374 $9,809
Gregory Piazza Md (Director; Education Chair) $300 $3,725
Samuel Z Goldhaber Md (President) $0 $3,725
John Fanikos Rph Mba (Treasurer) $0 $5,006
Christian Ruff Md Mph (Director) $0 $4,434
Jawed Fareed Phd (Vice President) $0 $3,725
Jeanine M Walenga Phd (Director (End 6/2022)) $0 $3,725
Joelle Hochman (Director) $0 $4,554
Jelena Spyropoulos (Director (Start 2/2022)) $0 $4,577

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,130,601
Expenses
$1,180,224
Net Income
-$49,623
Net Assets
$5,503,124
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $886,718
78.4%
Interest Revenue $9
0.0%
Dividends $74,751
6.6%
Sales of Assets $169,123
15.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,122,695
95.1%
Compensation of Officers* $159,345
13.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $5,508,917
Total Liabilities $5,793
Net Assets $5,503,124
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $159,345 $7,543
Samuel Z Goldhaber Md (President) $0 $1,098
John Fanikos Rph Mba (Treasurer) $0 $1,098
Christian Ruff Md Mph (Director) $0 $1,098
Jawed Fareed Phd (Vice President) $0 $1,098
Gregory Piazza Md (Director; Education Chair) $0 $1,098
Jeanine M Walenga Phd (Director) $0 $1,098
Joelle Hochman (Director (Start 9/2021)) $0 $1,168

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$795,635
Expenses
$1,045,539
Net Income
-$249,904
Net Assets
$4,976,155
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $466,220
58.6%
Interest Revenue $12
0.0%
Dividends $74,040
9.3%
Sales of Assets $254,848
32.0%
Other Income $515
0.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $927,317
88.7%
Compensation of Officers* $139,101
13.3%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $5,048,051
Total Liabilities $71,896
Net Assets $4,976,155
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $134,856 $7,078
Gregory Piazza Md (Director; Education Chair) $2,245 $958
John Fanikos Rph Mba (Treasurer) $2,000 $713
Samuel Z Goldhaber Md (President) $0 $713
Christian Ruff Md Mph (Director) $0 $713
Jawed Fareed Phd (Vice President; Director) $0 $713
Jeanine M Walenga Phd (Director) $0 $713

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$977,246
Expenses
$1,461,923
Net Income
-$484,677
Net Assets
$5,084,752
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $857,752
87.8%
Interest Revenue $203
0.0%
Dividends $106,429
10.9%
Sales of Assets $1,862
0.2%
Other Income $11,000
1.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,210,562
82.8%
Compensation of Officers* $144,776
9.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $5,122,800
Total Liabilities $38,048
Net Assets $5,084,752
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $108,869 $105,643
Gregory Piazza Md (Director; Education Chair) $13,401 $2,114
Samuel Z Goldhaber Md (President) $11,522 $5,234
John Fanikos Rph Mba (Treasurer) $7,000 $713
Christian Ruff Md Mph (Director) $2,500 $713
Jeanine M Walenga Phd (Director) $757 $1,469
Jawed Fareed Phd (Vice President; Director) $727 $1,439

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,514,824
Expenses
$1,011,536
Net Income
$503,288
Net Assets
$4,754,728
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,418,165
93.6%
Interest Revenue $464
0.0%
Dividends $84,745
5.6%
Sales of Assets -$7,666
Other Income $19,116
1.3%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $858,556
84.9%
Compensation of Officers* $115,123
11.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $4,800,815
Total Liabilities $46,087
Net Assets $4,754,728
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $94,623 $7,573
Samuel Z Goldhaber Md (President) $10,000 $4,582
John Fanikos Rph Mba (Treasurer) $6,000 $4,392
Gregory Piazza Md (Director; Education Chair) $4,500 $4,390
Christian Ruff Md Mph (Director) $0 $4,275
Jawed Fareed Phd (Vice President; Director) $0 $4,275
Jeanine M Walenga Phd (Director) $0 $4,275

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$1,246,033
Expenses
$785,474
Net Income
$460,559
Net Assets
$4,682,143
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,135,729
91.1%
Interest Revenue $100
0.0%
Dividends $70,172
5.6%
Sales of Assets $8,090
0.6%
Other Income $31,942
2.6%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $605,211
77.1%
Compensation of Officers* $132,500
16.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $4,700,746
Total Liabilities $18,603
Net Assets $4,682,143
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $85,000 $6,265
Samuel Z Goldhaber Md (President) $26,000 $4,585
John Fanikos Rph Mba (Treasurer) $13,000 $4,585
Gregory Piazza Md (Director) $8,500 $4,585
Christian Ruff Md Mph (Director) $0 $4,585
Jawed Fareed Phd (Vice President) $0 $4,585
Jeanine M Walenga Phd (Director) $0 $4,585

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$892,412
Expenses
$755,360
Net Income
$137,052
Net Assets
$3,710,024
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $741,624
83.1%
Interest Revenue $7
0.0%
Dividends $58,002
6.5%
Sales of Assets $14,141
1.6%
Other Income $78,638
8.8%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $591,526
78.3%
Compensation of Officers* $82,609
10.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $3,813,569
Total Liabilities $103,545
Net Assets $3,710,024
Compensation
Key Employees and Officers Compensation Other
Kathryn Mikkelsen (Executive Director) $82,609 $0
Samuel Z Goldhaber Md (President) $0 $0
John Fanikos Pharmd Mba (Treasurer) $0 $0
Christian Ruff Md Mph (Director) $0 $0
Jawed Fareed Phd (Vice President) $0 $0
Gregory Piazza Md (Director) $0 $0
Jeanine M Walenga Phd (Director) $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$626,317
Expenses
$398,073
Net Income
$228,244
Net Assets
$3,304,773
Notable Sources of Revenue Percent of Total Revenue
Contributions $541,179
86.4%
Program Services $16,662
2.7%
Investment Income $99,132
15.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets -$30,656
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $133,331
33.5%
Assets/Debt
Total Assets $3,476,898
Total Liabilities $172,125
Net Assets $3,304,773
Compensation
Key Employees and Officers Compensation Related Other
Samuel Z Goldhaber Md (President) $0 $0 $0
John Fanikos R Ph Mba (Treasurer) $0 $0 $0
Christian Ruff Md Mph (Director) $0 $0 $0
Jawed Fareed Ph D (Vice President) $0 $0 $0
Arthur A Sasahara Md (Director) $0 $0 $0
Kathryn Mikkelsen (Exec Director) $0 $0 $0
Gregory Piazza Md (Director) $0 $0 $0
Jeanine M Walenga Ph D (Director) $0 $0 $0
Caroline Kernan (Staff) $0 $0 $0
Erica Dour (Staff) $0 $0 $0
Katherine Marriott (Staff) $0 $0 $0
Civry Melvin (Staff) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,010,309
Expenses
$544,340
Net Income
$465,969
Net Assets
$3,247,253
Notable Sources of Revenue Percent of Total Revenue
Contributions $589,805
58.4%
Program Services $35,639
3.5%
Investment Income $132,826
13.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $119,838
11.9%
Sales of Assets $132,201
13.1%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $112,636
20.7%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $3,322,253
Total Liabilities $75,000
Net Assets $3,247,253
Compensation
Key Employees and Officers Compensation Related Other
Erica Dour (Staff) $64,777 $0 $0
Civry Melvin (Staff) $16,032 $0 $0
Katherine Marriott (Staff) $15,942 $0 $0
Caroline Kernan (Staff) $15,885 $0 $0
Samuel Z Goldhaber Md (President) $0 $0 $0
John Fanikos R Ph Mba (Treasurer) $0 $0 $0
Christian Ruff Md Mph (Director) $0 $0 $0
Jawed Fareed Ph D (Vice President) $0 $0 $0
Arthur A Sasahara Md (Director) $0 $0 $0
Kathryn Mikkelsen (Director) $0 $0 $0
Gregory Piazza Md (Director) $0 $0 $0
Jeanine M Walenga Ph D (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$583,770
Expenses
$555,102
Net Income
$28,668
Net Assets
$2,802,736
Notable Sources of Revenue Percent of Total Revenue
Contributions $240,994
41.3%
Program Services $79,226
13.6%
Investment Income $87,594
15.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $54,576
9.3%
Sales of Assets $121,380
20.8%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $101,434
18.3%
Professional Fundraising Fees $0
Other Salaries and Wages $6,180
1.1%
Assets/Debt
Total Assets $2,902,736
Total Liabilities $100,000
Net Assets $2,802,736
Compensation
Key Employees and Officers Compensation Related Other
Caroline Kernan (Staff) $53,252 $0 $0
Erica Dour (Staff) $48,182 $0 $0
Samuel Z Goldhaber Md (President) $0 $0 $0
John Fanikos R Ph Mba (Treasurer) $0 $0 $0
Christian Ruff Md Mph (Director) $0 $0 $0
Jawed Fareed Ph D (Vice President) $0 $0 $0
Arthur A Sasahara Md (Director) $0 $0 $0
Gregory Piazza Md (Director) $0 $0 $0
Jeanine M Walenga Ph D (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$676,688
Expenses
$545,130
Net Income
$131,558
Net Assets
$2,651,243
Notable Sources of Revenue Percent of Total Revenue
Contributions $495,670
73.2%
Program Services $66,477
9.8%
Investment Income $75,140
11.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $46,940
6.9%
Sales of Assets -$7,539
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $96,212
17.6%
Professional Fundraising Fees $0
Other Salaries and Wages $12,360
2.3%
Assets/Debt
Total Assets $2,701,243
Total Liabilities $50,000
Net Assets $2,651,243

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$899,576
Expenses
$746,451
Net Income
$153,125
Net Assets
$2,342,699
Notable Sources of Revenue Percent of Total Revenue
Contributions $573,144
63.7%
Program Services $15,549
1.7%
Investment Income $45,878
5.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising -$3,308
Sales of Assets $268,313
29.8%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $12,711
1.7%
Other Salaries and Wages $254,204
34.1%
Assets/Debt
Total Assets $2,342,699
Total Liabilities $0
Net Assets $2,342,699

Document Links

Fiscal Year Ending Dec.
2010

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,260,364
Expenses
$651,567
Net Income
$608,797
Net Assets
$2,367,836
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,015,207
80.5%
Program Services $155,610
12.3%
Investment Income $34,486
2.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $14,074
1.1%
Sales of Assets $40,987
3.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $80,558
12.4%
Professional Fundraising Fees $0
Other Salaries and Wages $74,138
11.4%
Assets/Debt
Total Assets $2,367,836
Total Liabilities $0
Net Assets $2,367,836

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

About This Data

What Is 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 »

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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.

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