PROPUBLICA Fearless Reporting for an Informed Society — Join Us.
DONATE
Skip to content
ProPublica Donate
ProPublica Donate

Western Society Of Periodontology

Organization summary

Type of Nonprofit

Designated as a Business leagues, chambers of commerce, real estate boards, etc, created for the improvement of business conditions.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$551k (2022)

Expenses
$647k (2022)

Total Assets
$321k (2022)

Total Liabilities
$0 (2022)

Source: Form 990 tax filings from 2011 to 2022

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.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$551,363
Expenses
$646,636
Net Income
-$95,273
Net Assets
$321,445
Notable Sources of Revenue Percent of Total Revenue
Contributions $128,423
23.3%
Program Services $422,767
76.7%
Investment Income $173
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $321,445
Total Liabilities $0
Net Assets $321,445
Compensation
Key Employees and Officers Compensation Related Other
Colin Graser (Director) $0 $0 $0
Rana Tarzemany (Director) $0 $0 $0
Tina Beck (Director) $0 $0 $0
Homa Zadeh (Director) $0 $0 $0
Sandra Schneidewind (Director) $0 $0 $0
Susan Wingrove (Director) $0 $0 $0
James Sweeney (Director) $0 $0 $0
Kathleen Hodges (Director) $0 $0 $0
Laurence S Ambrose (Director) $0 $0 $0
Peter Nordland (Director) $0 $0 $0
Thomas J Kepic (Director) $0 $0 $0
Rachana Hegde (Director) $0 $0 $0
Ari Pontikas (Director) $0 $0 $0
Thomas Baker (Director) $0 $0 $0
Gerald Drury (Journal Editor) $0 $0 $0
Todd Goldman (Executive Director) $0 $0 $0
Alexandre Amir Aalam (Vice President) $0 $0 $0
Bobby Birdi (President) $0 $0 $0
Giles Horrocks (Secretary) $0 $0 $0
Harjit Singh Seghal (Vice President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$516,192
Expenses
$489,111
Net Income
$27,081
Net Assets
$416,718
Notable Sources of Revenue Percent of Total Revenue
Contributions $105,064
20.4%
Program Services $411,106
79.6%
Investment Income $22
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $417,551
Total Liabilities $833
Net Assets $416,718
Compensation
Key Employees and Officers Compensation Related Other
Thomas J Kepic (Immediate Past President) $0 $0 $0
Bobby Birdi (President) $0 $0 $0
Alexandre Amir Aalam (Vice President) $0 $0 $0
Harjit Singh Seghal (Secretary) $0 $0 $0
Gerald Drury (Journal Editor) $0 $0 $0
Todd Goldman (Executive Director) $0 $0 $0
Ari Pontikas (Director) $0 $0 $0
Thomas Baker (Director) $0 $0 $0
Tina Beck (Director) $0 $0 $0
Giles Horrocks (Treasurer) $0 $0 $0
Colin Graser (Director) $0 $0 $0
Rachana Hegde (Director) $0 $0 $0
Rana Tarzemany (Director) $0 $0 $0
James Sweeney (Director) $0 $0 $0
Kathleen Hodges (Director) $0 $0 $0
Sandra Schneidewind (Director) $0 $0 $0
Susan Wingrove (Director) $0 $0 $0
Homa Zadeh (Director) $0 $0 $0
Peter Nordland (Director) $0 $0 $0
Laurence S Ambrose (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$352,847
Expenses
$340,477
Net Income
$12,370
Net Assets
$389,637
Notable Sources of Revenue Percent of Total Revenue
Contributions $209,805
59.5%
Program Services $143,006
40.5%
Investment Income $36
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $390,526
Total Liabilities $889
Net Assets $389,637
Compensation
Key Employees and Officers Compensation Related Other
Thomas J Kepic (President) $0 $0 $0
Bobby Birdi (Vice Preside) $0 $0 $0
Alexandre Amir Aalam (Secretary) $0 $0 $0
Harjit Singh Seghal (Treasurer) $0 $0 $0
Gerald Drury (Journal Edit) $0 $0 $0
Todd Goldman (Executive Di) $0 $0 $0
Laurence S Ambrose (Past Preside) $0 $0 $0
Thomas Baker (Director) $0 $0 $0
Rana Tarzemany (Director) $0 $0 $0
James Sweeney (Director) $0 $0 $0
Nagib Bahri (Director) $0 $0 $0
Kathleen Hodges (Director) $0 $0 $0
Sandra Schneidewind (Director) $0 $0 $0
Ari Pontikas (Director) $0 $0 $0
Tina Beck (Director) $0 $0 $0
Giles Horrocks (Director) $0 $0 $0
Colin Graser (Director) $0 $0 $0
Rachana Hedge (Director) $0 $0 $0
Susan Wingrove (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$456,275
Expenses
$452,425
Net Income
$3,850
Net Assets
$377,267
Notable Sources of Revenue Percent of Total Revenue
Contributions $68,453
15.0%
Program Services $387,728
85.0%
Investment Income $94
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $379,783
Total Liabilities $2,516
Net Assets $377,267
Compensation
Key Employees and Officers Compensation Related Other
Laurence Ambrose (President) $0 $0 $0
Kian Kar (Vice Preside) $0 $0 $0
Bobbi Birdi (Secretary) $0 $0 $0
Alexandre Amir Aalam (Treasurer) $0 $0 $0
Gerald Drury (Journal Edit) $0 $0 $0
Todd Goldman (Executive Di) $0 $0 $0
Dean N Ahmad (Past Preside) $0 $0 $0
Stephen Folson (Director) $0 $0 $0
Thomas Baker (Director) $0 $0 $0
Michael Matsuda (Director) $0 $0 $0
Robert M London (Director) $0 $0 $0
Rana Tarzemany (Director) $0 $0 $0
Sean Mckeon (Director) $0 $0 $0
James Sweeney (Director) $0 $0 $0
Nagib Bahri (Director) $0 $0 $0
Kathleen Hodges (Director) $0 $0 $0
Sandra Schneidewind (Director) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$481,142
Expenses
$387,728
Net Income
$93,414
Net Assets
$373,417
Notable Sources of Revenue Percent of Total Revenue
Contributions $76,062
15.8%
Program Services $404,985
84.2%
Investment Income $95
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $377,421
Total Liabilities $4,004
Net Assets $373,417
Compensation
Key Employees and Officers Compensation Related Other
Todd Goldman (Executive Di) $0 $0 $0
Dean N Ahmad (President) $0 $0 $0
Laurence Ambrose (Vice Preside) $0 $0 $0
Kian Kar (Secretary) $0 $0 $0
Bobbi Birdi (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$414,854
Expenses
$404,220
Net Income
$10,634
Net Assets
$280,007
Notable Sources of Revenue Percent of Total Revenue
Contributions $155,894
37.6%
Program Services $258,880
62.4%
Investment Income $80
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $295,631
Total Liabilities $15,624
Net Assets $280,007
Compensation
Key Employees and Officers Compensation Related Other
Todd Goldman (Executive Dir.) $0 $0 $0
Laurence S Ambrose Dds Ms (Treasurer) $0 $0 $0
Homa Zadeh Dds Ph D (President) $0 $0 $0
Michael Matsuda Dds (Vice President) $0 $0 $0
Dean Ahmad Dds (Secretary) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$398,542
Expenses
$372,682
Net Income
$25,860
Net Assets
$209,009
Notable Sources of Revenue Percent of Total Revenue
Contributions $158,791
39.8%
Program Services $239,689
60.1%
Investment Income $62
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $209,009
Total Liabilities $0
Net Assets $209,009
Compensation
Key Employees and Officers Compensation Related Other
Todd Goldman (Exec. Director) $0 $0 $0
Tom Kepic Dds (President) $0 $0 $0
Homa Zadeh Dds Ph D (Incoming Pres.) $0 $0 $0
Michael Matsuda Dds (Secretary) $0 $0 $0
Dean Ahmad Dds (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$313,981
Expenses
$195,880
Net Income
$118,101
Net Assets
$183,149
Notable Sources of Revenue Percent of Total Revenue
Contributions $146,680
46.7%
Program Services $166,845
53.1%
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 $443
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $11,521
5.9%
Assets/Debt
Total Assets $187,846
Total Liabilities $4,697
Net Assets $183,149
Compensation
Key Employees and Officers Compensation Related Other
Todd Goldman (Executive Di) $0 $0 $0
Peter Russo Dds (President) $0 $0 $0
Thomas Kepic Dds Msd (Vice Preside) $0 $0 $0
Homa H Zadeh Dds Phd (Secretary) $0 $0 $0
Michael L Matsuda Dds (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$157,777
Expenses
$147,911
Net Income
$9,866
Net Assets
$65,048
Notable Sources of Revenue Percent of Total Revenue
Contributions $52,790
33.5%
Program Services $104,973
66.5%
Investment Income $14
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $33,133
22.4%
Assets/Debt
Total Assets $82,697
Total Liabilities $17,649
Net Assets $65,048
Compensation
Key Employees and Officers Compensation Related Other
Lionell Greenberg Dds (President) $0 $0 $0
Peter Russo Dds (President El) $0 $0 $0
Thomas Kepic Dds (Secretary) $0 $0 $0
Homa H Zadeh Dds Phd (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$146,006
Expenses
$140,083
Net Income
$5,923
Net Assets
$55,182
Notable Sources of Revenue Percent of Total Revenue
Contributions $48,996
33.6%
Program Services $96,967
66.4%
Investment Income $43
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $29,680
21.2%
Assets/Debt
Total Assets $64,162
Total Liabilities $8,980
Net Assets $55,182
Compensation
Key Employees and Officers Compensation Related Other
Anthony Giardino Dds Ms (President) $0 $0 $0
Lionell Greenberg Dds (President El) $0 $0 $0
Peter Russo Dds (Secretary) $0 $0 $0
Thomas Kepic Dds (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$132,804
Expenses
$122,264
Net Income
$10,540
Net Assets
$49,259
Notable Sources of Revenue Percent of Total Revenue
Contributions $54,251
40.9%
Program Services $78,085
58.8%
Investment Income $58
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $410
0.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $28,000
22.9%
Assets/Debt
Total Assets $56,300
Total Liabilities $7,041
Net Assets $49,259

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$183,264
Expenses
$173,941
Net Income
$9,323
Net Assets
$38,719
Notable Sources of Revenue Percent of Total Revenue
Contributions $60,195
32.8%
Program Services $122,980
67.1%
Investment Income $89
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $32,667
18.8%
Assets/Debt
Total Assets $69,364
Total Liabilities $30,645
Net Assets $38,719

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.
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

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 »