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US nonprofit · EIN 237405487 · Beverly, MAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 237405487) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2024: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Western Thoracic Surgical Association

Donations deductible
Revenue
$698k
year to 31 December 2024
Expenses
$580k
year to 31 December 2024
Total assets
$906k
$7k liabilities
Net assets
$899k
assets less liabilities
Directors and trustees
14
5.6 years on average
Staff
0
63 volunteers
Chair observed
≥1 yr
Errol L Bush
Left since last filing
4
29% of the board
How am I connected?

Western Thoracic Surgical Association's network

14 peoplei14 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (14). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

14 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 11 voting members of its governing body on its latest Form 990 Part VI; we list 14 in Part VII (Part VII does not always name every voting member).
NameRole as filedSinceOn the board
Errol L Bush ChairProgram Committee Chair (6/24)2023
3 yrs
Arthur N Thomas MDCouncilor-Founder (6/24)2018
8 yrs
Craig J Baker MDPresident/Vice President2018
8 yrs
David Tom Cooke MDCouncilor-at-Large2024
2 yrs
Douglas E Wood MDHistorian2018
8 yrs
G Alexander Patterson MDEditor2024
2 yrs
Jessica S Donington MDImm Past President (6/24)2018
8 yrs
Joelle Coletta MDCouncilor-at-Large2024
2 yrs
Michael A Smith MDVice President/Councilor-at-Large2022
4 yrs
Michael J Weyant MDTreasurer (6/24)2021
5 yrs
Michael P Fischbein MD PHD (also filed as Michael Fischbein MD)Imm Past President/Pres2019
7 yrs
Nahush A Mokadam MDCouncilor-at-Large2023
3 yrs
RAM Kumar Subramanyan MDTreasurer/Councilor-at-Large2021
5 yrs
Y Joseph WOO MDCompany secretary2019
7 yrs
Under 5 years5 to 6 years6 years or moreShow all 14 →

Pay and hours

year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Craig J Baker MDPresident/Vice President2$0
Michael A Smith MDVice President/Councilor-at-Large2$0
Ram Kumar Subramanyan MDTreasurer/Councilor-at-Large2$0
Y Joseph Woo MDSecretary2$0
Michael Fischbein MDImm Past President/Pres2$0
Douglas E Wood MDHistorian2$0
G Alexander Patterson MDEditor2$0
David Tom Cooke MDCouncilor-at-Large2$0
Joelle Coletta MDCouncilor-at-Large2$0
Nahush A Mokadam MDCouncilor-at-Large2$0
Michael J Weyant MDTreasurer (6/24)2$0
Jessica S Donington MDImm Past President (6/24)2$0
Errol L BushProgram Committee Chair (6/24)2$0
Arthur N Thomas MDCouncilor-Founder (6/24)2$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Western Thoracic Surgical Association
EIN
237405487
Address
500 Cummings Ctr Ste 4400, Beverly, MA, 01915-6518
State
Massachusetts
Mission
To associate persons living in western united states and canada for the advancement in quality and practice of thoracic and cardiovascular surgery. (as filed on the Form 990)
Activity (NTEE)
G9BZ Voluntary health associations and medical disciplines
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Voluntary Health Associations & Medical Disciplines
Size band
5 (IRS master file code)
Formed
1974
Principal officer
Craig Baker MD (as named on the Form 990)
IRS ruling date
1 March 1976
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2024
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsArthur N Thomas MD
≥8years on the filingsCraig J Baker MD
≥8years on the filingsDouglas E Wood MD
≥8years on the filingsJessica S Donington MD

Latest return

year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.
Total assets
$906k
Total liabilities
$7k
Net assets or fund balances
$899k
Contributions and grants received
$218k
Program service revenue
$465k
Grants and similar paid out
$2k
Employees
0
Volunteers
63

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$698k$580k$118k

As filed on the IRS Form 990. US dollars.