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Midwest Society Of Periodontology

  • Berwyn, IL
  • Tax-exempt since April 1973
  • EIN: 23-7152723

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.

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$134k (2024)

Expenses
$140k (2024)

Total Assets
$170k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2012 to 2024

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 Feb.
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$134,355
Expenses
$140,375
Net Income
-$6,020
Net Assets
$170,011
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $6
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $170,011
Total Liabilities $0
Net Assets $170,011
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $29,775 $0
Dr Megan A Ratliff (President) $0 $0
Dr Gustavo Avila Ortiz (Presidnet Elect) $0 $0
Dr Amar Katranji (Vice President) $0 $0
Dr Albert Chan (Treasurer) $0 $0
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Document Links

990-EZ
Filed on Aug. 28, 2024

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Feb.
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$178,245
Expenses
$125,320
Net Income
$52,925
Net Assets
$176,002
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $4
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $176,002
Total Liabilities $0
Net Assets $176,002
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $28,491 $0
Dr Megan A Ratliff (President) $0 $0
Dr Gustavo Avila Ortiz (Presidnet Elect) $0 $0
Dr Amar Katranji (Vice President) $0 $0
Dr Albert Chan (Treasurer) $0 $0
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990-EZ
Filed on Dec. 22, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Feb.
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$121,931
Expenses
$51,616
Net Income
$70,315
Net Assets
$123,077
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $123,077
Total Liabilities $0
Net Assets $123,077
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $27,312 $0
Dr Megan A Ratliff (President) $0 $0
Dr Gustavo Avila Ortiz (Presidnet Elect) $0 $0
Dr Amar Katranji (Vice President) $0 $0
Dr Albert Chan (Treasurer) $0 $0
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990-EZ
Filed on Aug. 24, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Feb.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$40,536
Expenses
$109,767
Net Income
-$69,231
Net Assets
$52,762
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $254
0.6%
Assets/Debt
Total Assets $52,762
Total Liabilities $0
Net Assets $52,762
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $26,520 $0
Dr Megan A Ratliff (President) $0 $0
Dr Gustavo Avila Ortiz (Presidnet Elect) $0 $0
Dr Amar Katranji (Vice President) $0 $0
Dr Albert Chan (Treasurer) $0 $0
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Document Links

990-EZ
Filed on Aug. 26, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$95,246
Expenses
$124,041
Net Income
-$28,795
Net Assets
$121,993
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $61
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $675
0.7%
Assets/Debt
Total Assets $121,993
Total Liabilities $0
Net Assets $121,993
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $32,189 $0
Dr Nabil Bissada (President) $0 $0
Dr Megan A Ratliff (President Elect) $0 $0
Dr Gustavo Avila Ortiz (Vice President) $0 $0
Dr Yusuke Hamada (Secretary) $0 $0
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Document Links

990-EZ
Filed on Sept. 25, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$126,931
Expenses
$124,581
Net Income
$2,350
Net Assets
$150,788
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $18
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $150,788
Total Liabilities $0
Net Assets $150,788
Compensation
Key Employees and Officers Compensation Other
Dr Timothy Walsh (Executive Director) $23,086 $0
Dr Paul Leupke (President) $0 $0
Dr Nabil Bissada (President Elect) $0 $0
Dr Megan A Ratliff (Vice President) $0 $0
Dr Amar Katranji (Treasurer) $0 $0
Dr Gustavo Avila Ortiz (Secretary) $0 $0
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Document Links

990-EZ
Filed on Sept. 23, 2019

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$125,486
Expenses
$118,887
Net Income
$6,599
Net Assets
$148,438
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $125,474
100.0%
Investment Income $12
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $148,438
Total Liabilities $0
Net Assets $148,438
Compensation
Key Employees and Officers Compensation Other
Dr Gregory Fauth (Executive Director) $22,020 $0
Dr Timothy Walsh (Executive Director) $6,250 $0
Dr Darnell Kaigler (President) $0 $0
Dr Paul Leupke (President Elect) $0 $0
Dr Nabil Bissada (Vice President) $0 $0
Dr Megan A Ratliff (Treasurer) $0 $0
Dr Gustavo Avila Ortiz (Secretary) $0 $0
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990-EZ
Filed on Aug. 14, 2018

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$119,793
Expenses
$126,296
Net Income
-$6,503
Net Assets
$141,839
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $119,783
100.0%
Investment Income $10
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $141,839
Total Liabilities $0
Net Assets $141,839
Compensation
Key Employees and Officers Compensation Other
Dr Gregory L Fauth (Executive Director) $25,666 $0
Dr Tae Ju Oh (President) $0 $0
Dr Darnell Kaigler (President Elect) $0 $0
Dr Paul Luepke (Vice President) $0 $0
Dr Megan A Ratliff (Treasurer) $0 $0
Dr Nabil Bissada (Secretary) $0 $0
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Document Links

990-EZ
Filed on Aug. 4, 2017

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$131,858
Expenses
$144,917
Net Income
-$13,059
Net Assets
$148,342
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $25
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $148,342
Total Liabilities $0
Net Assets $148,342
Compensation
Key Employees and Officers Compensation Other
Dr Gregory L Fauth (Executive Director) $24,981 $0
Dr Paula Weistroffer (President) $0 $0
Dr Tae Ju Oh (President Elect) $0 $0
Dr Darnell Kaigler (Vice President) $0 $0
Dr Paul Luepke (Treasurer) $0 $0
Dr Nabil Bissada (Secretary) $0 $0
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Document Links

990-EZ
Filed on Aug. 15, 2016

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$129,002
Expenses
$115,708
Net Income
$13,294
Net Assets
$161,401
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $10
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $161,401
Total Liabilities $0
Net Assets $161,401
Compensation
Key Employees and Officers Compensation Other
Dr Gregory L Fauth (Executive Director) $26,052 $0
Dr Diego Velasquez (President) $0 $0
Dr Paula Weistroffer (President Elect) $0 $0
Dr Tae Ju Oh (Vice President) $0 $0
Dr Paul Luepke (Treasurer) $0 $0
Dr Darnell Kaigler (Secretary) $0 $0
+ View more people

Document Links

990-EZ
Filed on July 18, 2015

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$104,113
Expenses
$117,585
Net Income
-$13,472
Net Assets
$148,107
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $73
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $148,107
Total Liabilities $0
Net Assets $148,107
Compensation
Key Employees and Officers Compensation Other
Dr Gregory L Fauth (Executive Director) $22,000 $0
Dr Kenneth A Krebs (Past Executive Director) $4,052 $0
Dr Paul Ricchetti (President) $0 $0
Dr Diego Velaquez (President Elect) $0 $0
Dr Paula Weistroffer (Vice President) $0 $0
Dr Tae Ju Oh (Treasurer) $0 $0
Dr Darnell Kaigler (Secretary) $0 $0
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990-EZ
Filed on June 25, 2014

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$118,574
Expenses
$103,645
Net Income
$14,929
Net Assets
$161,579
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $121
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $311
0.3%
Assets/Debt
Total Assets $161,579
Total Liabilities $0
Net Assets $161,579

Document Links

990-EZ
Filed on July 21, 2014

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Feb.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$127,956
Expenses
$97,244
Net Income
$30,712
Net Assets
$146,650
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $107
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $146,650
Total Liabilities $0
Net Assets $146,650

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
2011

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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Feb.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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 »

Byline

By Andrea Suozzo, Alec Glassford and Ash Ngu, ProPublica, and Brandon Roberts, Special to ProPublica.
Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated