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Illinois Association Of Orthopaedic Surgeon

  • Park Ridge, IL
  • Tax-exempt since March 2000
  • EIN: 36-4343451

Organization summary

Type of Nonprofit

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

Category: Community Improvement, Capacity Building / Promotion of Business (NTEE)

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$34.5k (2023)

Expenses
$24.3k (2023)

Total Assets
$134k (2023)

Total Liabilities
$0 (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 990-EZ
Revenue
$34,464
Expenses
$24,312
Net Income
$10,152
Net Assets
$133,976
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $133,976
Total Liabilities $0
Net Assets $133,976
Compensation
Key Employees and Officers Compensation Other
Douglas Evans Md (President) $0 $0
Alfonso Mejia Md (Director) $0 $0
Jeffrey Goldstein Md (President Elect) $0 $0
Steven Mardjetko (Secretary Treasurer) $0 $0
Charles Bush Joseph Md (Director) $0 $0
Preston Wolin Md (Director) $0 $0
David Alfieri Md (Director) $0 $0
Charles Bush Joseph Md (Director) $0 $0
Steven Morton Do (Director) $0 $0
Giri Burra (Director) $0 $0
Miguel Ramirez Md (Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 12, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$46,930
Expenses
$13,587
Net Income
$33,343
Net Assets
$123,824
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $123,824
Total Liabilities $0
Net Assets $123,824
Compensation
Key Employees and Officers Compensation Other
Steven Mardjetko Md (President) $0 $0
Douglas Evans Md (President Elect) $0 $0
Jeffrey Goldstein Md (Secretary Treasurer) $0 $0
Charles Bush Joseph Md (Director) $0 $0
Preston Wolin Md (Director) $0 $0
David Alfieri Md (Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 15, 2023

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$67,035
Expenses
$14,378
Net Income
$52,657
Net Assets
$90,481
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $90,481
Total Liabilities $0
Net Assets $90,481
Compensation
Key Employees and Officers Compensation Other
John Cherf (President) $0 $0
Steve Mardjetko (President Elect) $0 $0
Douglas Evans (Secretary Treasurer) $0 $0
Charles Bush Joseph (Director) $0 $0
Sherwin Ho (Director) $0 $0
Anish Kadakia (Director) $0 $0
Jeff Goldstein (Director) $0 $0
David Alfieri (Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on Jan. 26, 2022

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$53,627
Expenses
$18,370
Net Income
$35,257
Net Assets
$37,824
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $37,824
Total Liabilities $0
Net Assets $37,824

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$9,247
Expenses
$35,522
Net Income
-$26,275
Net Assets
$2,567
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $300
3.2%
Assets/Debt
Total Assets $15,217
Total Liabilities $12,650
Net Assets $2,567
Compensation
Key Employees and Officers Compensation Other
Alfonso Mejia Md (Director) $0 $0
William J Holt Md (Immed Past P) $0 $0
Steve Mardjetko Md (President) $0 $0
John Cherf Md (President El) $0 $0
Douglas Evans Md (Secretary/Tr) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
Jason Koh Md (Director) $0 $0
Bart Wojewnik Md (Director) $0 $0
Charles Bush Joseph Md (Director) $0 $0
John Miller Md (Director) $0 $0
Preston Wolin Md (Director) $0 $0
+ View more people

Document Links

990-EZ
Filed on June 19, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$37,600
Expenses
$52,637
Net Income
-$15,037
Net Assets
$28,842
Notable Sources of Revenue Percent of Total Revenue
Contributions $4,000
10.6%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,550
6.8%
Assets/Debt
Total Assets $40,564
Total Liabilities $11,722
Net Assets $28,842
Compensation
Key Employees and Officers Compensation Other
Alfonso Mejia Md (Immed Past P) $0 $0
William J Holt Md (President) $0 $0
Steve Mardjetko Md (President E) $0 $0
John Cherf Md (Vice Preside) $0 $0
Douglas Evans Md (Secretary/Tr) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 6, 2019

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$40,525
Expenses
$48,919
Net Income
-$8,394
Net Assets
$43,880
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,925
7.2%
Assets/Debt
Total Assets $71,397
Total Liabilities $27,517
Net Assets $43,880
Compensation
Key Employees and Officers Compensation Other
Alfonso Mejia Md (Councilor To) $0 $0
William J Holt Md (President) $0 $0
Steve Mardjetko Md (President E) $0 $0
John Cherf Md (Vice Preside) $0 $0
Douglas Evans Md (Secretary/Tr) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 14, 2018

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$44,950
Expenses
$55,022
Net Income
-$10,072
Net Assets
$52,273
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,500
5.6%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,450
5.5%
Assets/Debt
Total Assets $71,737
Total Liabilities $19,464
Net Assets $52,273
Compensation
Key Employees and Officers Compensation Other
Alfonso Mejia Md (President) $0 $0
William J Holt Md (President El) $0 $0
Steve Mardjetko Md (Vice Preside) $0 $0
John Cherf Md (Secretary) $0 $0
Douglas Evans Md (Treasurer) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
Jason L Koh Md (Councilor To) $0 $0
+ View more people

Document Links

990-EZ
Filed on Aug. 24, 2017

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$56,741
Expenses
$53,441
Net Income
$3,300
Net Assets
$62,347
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,500
4.4%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $9,041
15.9%
Assets/Debt
Total Assets $70,410
Total Liabilities $8,063
Net Assets $62,347
Compensation
Key Employees and Officers Compensation Other
Alfonso Mejia Md (President) $0 $0
William J Holt Md (President El) $0 $0
Charles Bush Joseph Md (Vice Preside) $0 $0
Steve Markjetko Md (Secretary) $0 $0
John Cherf Md (Treasurer) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
Jason L Koh Md (Councilor To) $0 $0
Steve Mardjetko Md (Councilor To) $0 $0
+ View more people

Document Links

990-EZ
Filed on Aug. 12, 2016

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

View Filing
PDF XML
PDF (2 of 2)

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$45,250
Expenses
$63,292
Net Income
-$18,042
Net Assets
$60,462
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $5,050
11.2%
Assets/Debt
Total Assets $77,465
Total Liabilities $17,003
Net Assets $60,462
Compensation
Key Employees and Officers Compensation Other
Steve Mardjetko Md (Treasurer) $0 $0
Jason L Koh Md (Councilor To) $0 $0
James Sobeski Md (Past Preside) $0 $0
Matthew L Jimenez Md (Iaos Past Pr) $0 $0
Charles Bush Joseph Md (Secretary) $0 $0
Vishal M Mehta Md (President) $0 $0
James C Chow Md (Councilor To) $0 $0
William J Holt Md (Vice Preside) $0 $0
Alfonso Mejia Md (President El) $0 $0
Pietro Tonino Md (Member At La) $0 $0
John Cherf Md (Member At La) $0 $0
Douglas Evans Md (Member At La) $0 $0
Lalit Puri Md (Member At La) $0 $0
+ View more people

Document Links

990-EZ
Filed on July 10, 2015

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$52,150
Expenses
$61,808
Net Income
-$9,658
Net Assets
$78,504
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,550
4.9%
Assets/Debt
Total Assets $83,293
Total Liabilities $4,789
Net Assets $78,504
Compensation
Key Employees and Officers Compensation Other
Steve Markjetko Md (Treasurer) $0 $0
Jason L Koh Md (Councilor To) $0 $0
Sherwin S Ho Md (Past Preside) $0 $0
Matthew L Jimenez Md (Iaos Past Pr) $0 $0
Charles Bush Joseph Md (Secretary) $0 $0
Vishal M Metha Md (President) $0 $0
James C Chow Md (Councilor To) $0 $0
William J Holt Md (Vice Preside) $0 $0
Alfonso Mejia Md (President El) $0 $0
Pietro Tonino Md (Councilor To) $0 $0
John Cherf Md (Member At La) $0 $0
Douglas Evans Md (Member At La) $0 $0
Lalit Puri Md (Member At La) $0 $0
+ View more people

Document Links

990-EZ
Filed on Aug. 5, 2014

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$60,100
Expenses
$68,518
Net Income
-$8,418
Net Assets
$88,162
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $4,600
7.7%
Assets/Debt
Total Assets $105,111
Total Liabilities $16,949
Net Assets $88,162

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$58,900
Expenses
$65,158
Net Income
-$6,258
Net Assets
$96,580
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $4,650
7.9%
Assets/Debt
Total Assets $184,724
Total Liabilities $88,144
Net Assets $96,580

Document Links

990-EZ

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

PDF

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

990-EZ

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

PDF

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

990-EZ

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

PDF

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

990-EZ

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

PDF

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

990

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

PDF

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

990

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

PDF

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

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