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Nonprofit · EIN 22-3369166

MASSACHUSETTS MEDICAL SOCIETY

Also known as FRANKLIN DISTRICT

Tax-exempt · WALTHAM, MA 02451

Address and contacts

Address (IRS master file)
860 WINTER ST, WALTHAM, MA 02451-1449
Mailing address (990-N for 2025)
860 WINTER ST, WALTHAM MA 02451
Principal officer (990-N for 2025)
FLORA SADRI-AZARBAYEJANI DO, 860 WINTER ST, WALTHAM MA 02451

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in May, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025May 31, 2026October 15, 2026990-N on file
2024May 31, 2025October 15, 2025990-N on file
2023May 31, 2024October 15, 2024990-N on file

IRS record

EIN
22-3369166
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Exempt since
1994
Accounting year ends
May
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: FLORA SADRI-AZARBAYEJANI DO
May 31, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: FLORA SADRI-AZARBAYEJANI DO
May 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2023
Officer: Laurence Klien MD
May 31, 2024≤ $50,000 receipts––e-Postcard
990-N for 2022
Officer: LAURENCE KLEIN MD
May 31, 2023≤ $50,000 receipts––e-Postcard
990-N for 2020
Officer: Joseph J Viadero MD
May 31, 2021≤ $50,000 receipts––e-Postcard
990-N for 2019
Officer: Joseph J Viadero MD
May 31, 2020≤ $50,000 receipts––e-Postcard
990-N for 2018
Officer: Joseph J Viadero MD
May 31, 2019≤ $50,000 receipts––e-Postcard

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 22-3369166).

Questions about MASSACHUSETTS MEDICAL SOCIETY

What is the EIN of MASSACHUSETTS MEDICAL SOCIETY?
The employer identification number (EIN) of MASSACHUSETTS MEDICAL SOCIETY is 22-3369166.
Is MASSACHUSETTS MEDICAL SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1994.
Which annual return does MASSACHUSETTS MEDICAL SOCIETY file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of MASSACHUSETTS MEDICAL SOCIETY due?
The return for tax year 2026 (the year ending May 31, 2027) is due October 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MASSACHUSETTS MEDICAL SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended May 31, 2026.
Who is the principal officer of MASSACHUSETTS MEDICAL SOCIETY?
The 990-N for 2025 names FLORA SADRI-AZARBAYEJANI DO.

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