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Massachusetts Society Of Anesthesiologists Inc

  • Waltham, MA
  • Tax-exempt since May 1968
  • EIN: 04-6180165

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
$469k (2024)

Expenses
$372k (2024)

Total Assets
$1.17M (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2011 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 Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$468,700
Expenses
$371,752
Net Income
$96,948
Net Assets
$1,167,670
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $404,012
86.2%
Investment Income $22,093
4.7%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $42,595
9.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,167,670
Total Liabilities $0
Net Assets $1,167,670
Compensation
Key Employees and Officers Compensation Related Other
Amer Tabba Md (Immediate Past President) $0 $0 $0
Maurice Joyce Md (Vice President) $0 $0 $0
Karolina Brook Md (Secretary) $0 $0 $0
Lalitha Sundararaman Md (President) $0 $0 $0
Jie Zhou Md (Treasurer) $0 $0 $0
Ami Karkar (President Elect) $0 $0 $0
Nicholas Kiefer Md (Asa Director Alternate) $0 $0 $0
David Hepner Md (Asa Director) $0 $0 $0
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Document Links

990
Filed on Aug. 4, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$390,628
Expenses
$491,620
Net Income
-$100,992
Net Assets
$1,024,947
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $350,491
89.7%
Investment Income $17,462
4.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $22,675
5.8%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,024,947
Total Liabilities $0
Net Assets $1,024,947
Compensation
Key Employees and Officers Compensation Related Other
Cathie Jones Md (Past President) $0 $0 $0
Jennifer Dearden Md (President) $0 $0 $0
Karolina Brook Md (Secretary) $0 $0 $0
Lalitha Sundararaman Md (Vice President) $0 $0 $0
Mary Ann Vann Md (Treasurer) $0 $0 $0
Amer Tabba Md (President Elect) $0 $0 $0
Nicholas Kiefer Md (Director Alternate) $0 $0 $0
David Hepner Md (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Oct. 29, 2024

Primary 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 Form 990
Revenue
$379,819
Expenses
$314,248
Net Income
$65,571
Net Assets
$1,079,995
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $362,577
95.5%
Investment Income $4,224
1.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $13,018
3.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,079,995
Total Liabilities $0
Net Assets $1,079,995
Compensation
Key Employees and Officers Compensation Related Other
Nathan Jones Md (Past President) $0 $0 $0
Cathie Jones (President) $0 $0 $0
Galina Davidyuk Md (Secretary) $0 $0 $0
Amer Tabba (Vice President) $0 $0 $0
David Feinstein (Treasurer) $0 $0 $0
Jennifer Dearden (President Elect) $0 $0 $0
Nicholas Kiefer (Director Alternate) $0 $0 $0
David Hepner Md (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 20, 2024

Primary 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 Form 990
Revenue
$369,198
Expenses
$351,921
Net Income
$17,277
Net Assets
$1,058,326
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $359,819
97.5%
Investment Income $3,483
0.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $5,896
1.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,062,737
Total Liabilities $4,411
Net Assets $1,058,326
Compensation
Key Employees and Officers Compensation Related Other
Maitriyi Shah Md (Past President) $0 $0 $0
Nathan Jones (President) $0 $0 $0
Galina Davidyuk Md (Secretary) $0 $0 $0
Cathie Jones (President Elect) $0 $0 $0
Jennifer Dearden (Vice President) $0 $0 $0
David Feinstein (Treasurer) $0 $0 $0
+ View more people

Document Links

990
Filed on June 28, 2022

Primary 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 Form 990
Revenue
$399,601
Expenses
$301,276
Net Income
$98,325
Net Assets
$999,038
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $394,718
98.8%
Investment Income $4,883
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,000,757
Total Liabilities $1,719
Net Assets $999,038
Compensation
Key Employees and Officers Compensation Related Other
Maitriyi Shah Md (Past President) $0 $0 $0
Nathan Jones (President) $0 $0 $0
Galina Davidyuk Md (Secretary) $0 $0 $0
Cathie Jones (President Elect) $0 $0 $0
Jennifer Dearden (Vice President) $0 $0 $0
David Feinstein (Treasurer) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 7, 2022

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$413,795
Expenses
$400,437
Net Income
$13,358
Net Assets
$874,248
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $405,840
98.1%
Investment Income $7,955
1.9%
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 $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $874,673
Total Liabilities $425
Net Assets $874,248
Compensation
Key Employees and Officers Compensation Related Other
Nicholas M Kiefer Md (President) $0 $0 $0
Maitriyi Shah Md (President Elect) $0 $0 $0
Nathan Jones Md (Vice President) $0 $0 $0
Galina Davidyuk Md (Secretary) $0 $0 $0
Richard Pollard Md (Treasurer) $0 $0 $0
Nikhil Thakkar Md (Immediate Past President) $0 $0 $0
David L Hepner Md (Asa Director (2021)) $0 $0 $0
Sheila Barnett Md (Asa Alternate Director (2021)) $0 $0 $0
Alexander A Hannenberg Md (Asa Past President) $0 $0 $0
Beverly K Philip (Asa Vice President For Scientific Affairs) $0 $0 $0
+ View more people

Document Links

990
Filed on July 6, 2020

Primary 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 Form 990
Revenue
$416,399
Expenses
$337,938
Net Income
$78,461
Net Assets
$842,655
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $410,922
98.7%
Investment Income $5,477
1.3%
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 $847,005
Total Liabilities $4,350
Net Assets $842,655
Compensation
Key Employees and Officers Compensation Related Other
Mary Ann Vann Md (President) $0 $0 $0
Richard D Urman Md (President Elect) $0 $0 $0
Nikhil Thakkar Md (Vice President) $0 $0 $0
Daniel Jp O'brien Md (Treasurer) $0 $0 $0
Bronwyn Cooper Md (Secretary) $0 $0 $0
David L Hepner Md (Director) $0 $0 $0
Selina A Long Md (Alternate Director) $0 $0 $0
+ View more people

Document Links

990
Filed on July 11, 2019

Primary 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 Form 990
Revenue
$439,309
Expenses
$276,770
Net Income
$162,539
Net Assets
$772,559
Notable Sources of Revenue Percent of Total Revenue
Contributions $7,000
1.6%
Program Services $428,723
97.6%
Investment Income $3,586
0.8%
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 $772,559
Total Liabilities $0
Net Assets $772,559
Compensation
Key Employees and Officers Compensation Related Other
Nicholas M Kiefer Md (Vice President) $0 $0 $0
Richard D Urman Md (President) $0 $0 $0
Nikhil Thakkar Md (President Elect) $0 $0 $0
Daniel Jp O'brien Md (Treasurer) $0 $0 $0
Maitriyi J Shah Md (Secretary) $0 $0 $0
David L Hepner Md (Director) $0 $0 $0
Selina A Long Md (Director) $0 $0 $0
Nathan R Strunk (Clerk) $0 $0 $0
+ View more people

Document Links

990
Filed on May 1, 2019

Primary 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 Form 990
Revenue
$413,710
Expenses
$389,348
Net Income
$24,362
Net Assets
$566,227
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $410,337
99.2%
Investment Income $3,373
0.8%
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 $49,510
12.7%
Assets/Debt
Total Assets $573,011
Total Liabilities $6,784
Net Assets $566,227
Compensation
Key Employees and Officers Compensation Related Other
Mary Ann Vann Md (President) $0 $0 $0
Richard D Urman Md (President Elect) $0 $0 $0
Nikhil Thakkar Md (Vice President) $0 $0 $0
Daniel Jp O'brien Md (Treasurer) $0 $0 $0
Bronwyn Cooper Md (Secretary) $0 $0 $0
David L Hepner Md (Director) $0 $0 $0
Selina A Long Md (Alternate Direc) $0 $0 $0
+ View more people

Document Links

990
Filed on June 15, 2017

Primary 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 Form 990
Revenue
$359,103
Expenses
$378,030
Net Income
-$18,927
Net Assets
$541,865
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $347,632
96.8%
Investment Income $2,728
0.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $8,743
2.4%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $46,067
12.2%
Assets/Debt
Total Assets $541,865
Total Liabilities $0
Net Assets $541,865
Compensation
Key Employees and Officers Compensation Related Other
David L Hepner Ma (Director) $0 $0 $0
Sheila Barnett Md (President) $0 $0 $0
Mary Ann Vann Md (President Elect) $0 $0 $0
Bronwyn Cooper Mc (Secretary) $0 $0 $0
Daniel Jp Obrien Md (Treasurer) $0 $0 $0
+ View more people

Document Links

990
Filed on June 20, 2016

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$400,979
Expenses
$365,942
Net Income
$35,037
Net Assets
$560,792
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $366,013
91.3%
Investment Income $2,012
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $32,954
8.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $53,333
14.6%
Assets/Debt
Total Assets $560,792
Total Liabilities $0
Net Assets $560,792
Compensation
Key Employees and Officers Compensation Related Other
Spiro G Spanakis Do (President) $0 $0 $0
Sheila R Barnett Md (President Elect) $0 $0 $0
Cristin A Mcmurray Mc (Secretary) $0 $0 $0
Daniel Jp Obrien Md (Treasurer) $0 $0 $0
David L Hepner Ma (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on May 18, 2015

Primary 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 Form 990
Revenue
$378,109
Expenses
$354,188
Net Income
$23,921
Net Assets
$525,755
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $372,407
98.5%
Investment Income $1,710
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $3,992
1.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $61,219
17.3%
Assets/Debt
Total Assets $525,755
Total Liabilities $0
Net Assets $525,755
Compensation
Key Employees and Officers Compensation Related Other
Michael R England Md (President) $0 $0 $0
Spiro G Spanaki Do (President Elect) $0 $0 $0
Cristin A Mcmurray Mc (Secretary) $0 $0 $0
Daniel Jp Obrien Md (Treasurer) $0 $0 $0
David L Hepner Ma (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on May 1, 2014

Primary 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 Form 990
Revenue
$376,378
Expenses
$297,357
Net Income
$79,021
Net Assets
$501,834
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $373,406
99.2%
Investment Income $1,899
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $1,073
0.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $63,101
21.2%
Assets/Debt
Total Assets $501,834
Total Liabilities $0
Net Assets $501,834

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$361,567
Expenses
$306,198
Net Income
$55,369
Net Assets
$422,813
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $355,556
98.3%
Investment Income $1,891
0.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $4,120
1.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $66,867
21.8%
Assets/Debt
Total Assets $422,813
Total Liabilities $0
Net Assets $422,813

Document Links

990

Primary 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

Primary 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.
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 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

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 »

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.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

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