Massachusetts Medical Society

Essex South District Medical Societ
  • Waltham, MA
  • Tax exemption issued: Nov. 1994
  • EIN: 04-6290204

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.

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. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending March
2026

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$80,494
Expenses
$92,605
Net Income
-$12,111
Net Assets
$281,670
Notable Sources of Revenue Percent of Total Revenue
Contributions $9,770
12.1%
Program Services $0
Investment Income $32,264
40.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $281,670
Total Liabilities $0
Net Assets $281,670
Compensation
Key Employees and Officers Compensation Other
Eric Reines (Vice President) $5,000 $0
Ihor Bilyk (President) $3,000 $0
Thomas Murray (Trustee) $2,000 $0
Michael Medlock (Treasurer) $2,000 $0
Kelly Pajela (Former Secretary) $2,000 $0
Britt Hatfield (Secretary) $0 $0
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Document Links

990-EZ
Filed on Aug. 11, 2026

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

View Filing
XML

Fiscal Year Ending March
2025

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$78,811
Expenses
$63,152
Net Income
$15,659
Net Assets
$283,531
Notable Sources of Revenue Percent of Total Revenue
Contributions $13,000
16.5%
Program Services $0
Investment Income $3,076
3.9%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $75
0.1%
Assets/Debt
Total Assets $283,531
Total Liabilities $0
Net Assets $283,531
Compensation
Key Employees and Officers Compensation Other
Michael Medlock (Treasurer) $5,500 $0
Eric Reines (President) $4,500 $0
Thomas Murray (Trustee) $2,500 $0
Kelly Pajela (Secretary) $2,500 $0
Ihor Bilyk (President-elect) $2,500 $0
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Document Links

990-EZ
Filed on March 3, 2026

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

View Filing
PDF XML

Fiscal Year Ending March
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$52,882
Expenses
$54,221
Net Income
-$1,339
Net Assets
$253,341
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,922
5.5%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $1,490
2.8%
Assets/Debt
Total Assets $253,341
Total Liabilities $0
Net Assets $253,341
Compensation
Key Employees and Officers Compensation Other
Michael Medlock (Treasurer) $3,000 $0
Thomas Murray (Trustee) $1,500 $0
Kelly Pajela (Secretary) $1,000 $0
Eric Reines (President) $0 $0
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Document Links

990-EZ
Filed on Feb. 11, 2025

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

View Filing
PDF XML

Fiscal Year Ending March
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$53,978
Expenses
$45,534
Net Income
$8,444
Net Assets
$205,452
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,622
4.9%
Net Fundraising $0
Sales of Assets $28,586
53.0%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $205,452
Total Liabilities $0
Net Assets $205,452
Compensation
Key Employees and Officers Compensation Other
Michael Medlock (President) $4,500 $0
Ihor Bilyk (Treasurer) $1,500 $0
Eric Reines (President-elect) $1,500 $0
Kelly Pajela (Secretary) $1,500 $0
Thomas Murray (Trustee) $1,500 $0
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Document Links

990-EZ
Filed on Aug. 14, 2023

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

View Filing
PDF XML

Fiscal Year Ending March
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$66,736
Expenses
$69,882
Net Income
-$3,146
Net Assets
$248,112
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $3,044
4.6%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $248,112
Total Liabilities $0
Net Assets $248,112
Compensation
Key Employees and Officers Compensation Other
Michael Goldstein (President) $9,000 $0
Eric Reines (Treasurer) $3,000 $0
Michael Medlock (Vice President) $3,000 $0
Ihor Bilyk (Secretary) $3,000 $0
Thomas Murray (Trustee) $2,500 $0
Keith Nobil (Trustee) $1,000 $0
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Document Links

990-EZ
Filed on Feb. 11, 2023

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

View Filing
PDF XML

Fiscal Year Ending March
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$65,127
Expenses
$53,674
Net Income
$11,453
Net Assets
$223,086
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,914
4.5%
Net Fundraising $0
Sales of Assets $15,064
23.1%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $223,086
Total Liabilities $0
Net Assets $223,086
Compensation
Key Employees and Officers Compensation Other
Michael Goldstein (President) $3,500 $0
Eric Reines (Treasurer) $1,500 $0
Michael Medlock (Vice President) $1,500 $0
Keith Nobil (Trustee) $1,500 $0
Ronald Newman (Past President) $1,500 $0
Ihor Bilyk (Secretary) $1,000 $0
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Document Links

990-EZ
Filed on Aug. 2, 2021

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

View Filing
XML

Fiscal Year Ending March
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$63,302
Expenses
$89,761
Net Income
-$26,459
Net Assets
$155,183
Notable Sources of Revenue Percent of Total Revenue
Contributions $10,000
15.8%
Program Services $0
Investment Income $3,360
5.3%
Net Fundraising $0
Sales of Assets $3,084
4.9%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $155,183
Total Liabilities $0
Net Assets $155,183

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$60,309
Expenses
$62,377
Net Income
-$2,068
Net Assets
$199,206
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
8.3%
Program Services $0
Investment Income $3,224
5.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $199,206
Total Liabilities $0
Net Assets $199,206

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$57,619
Expenses
$60,633
Net Income
-$3,014
Net Assets
$190,085
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,773
4.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $190,085
Total Liabilities $0
Net Assets $190,085

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$52,470
Expenses
$53,231
Net Income
-$761
Net Assets
$177,207
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,520
4.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $177,207
Total Liabilities $0
Net Assets $177,207

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$58,639
Expenses
$47,045
Net Income
$11,594
Net Assets
$160,922
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
8.5%
Program Services $0
Investment Income $2,364
4.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $160,922
Total Liabilities $0
Net Assets $160,922

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$49,549
Expenses
$63,187
Net Income
-$13,638
Net Assets
$149,719
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,164
4.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $149,719
Total Liabilities $0
Net Assets $149,719

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$58,892
Expenses
$50,938
Net Income
$7,954
Net Assets
$152,880
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
8.5%
Program Services $0
Investment Income $1,893
3.2%
Net Fundraising $0
Sales of Assets $3,329
5.7%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $152,880
Total Liabilities $0
Net Assets $152,880

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$55,265
Expenses
$50,691
Net Income
$4,574
Net Assets
$128,191
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
9.0%
Program Services $0
Investment Income $1,835
3.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $128,191
Total Liabilities $0
Net Assets $128,191

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
2012

Gross receipts
Less than $50,000

Postcard filings do not ask for a specific revenue amount and provide no additional financial details.

Document Links

990-EZ

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

PDF

Fiscal Year Ending March
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 March
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 March
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 March
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 March
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-EZ

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

PDF

Fiscal Year Ending March
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-EZ

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

PDF

Fiscal Year Ending March
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-EZ

Short form 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 financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited 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 for 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?

Most organizations that have been recognized as tax exempt by the IRS have to file the 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 the 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," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

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 Employer Identification Numbers 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.
  • 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 »

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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.

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