Obstetrical Society of Boston Inc
Donations deductibleRevenue
$27k
year to 30 September 2025
Expenses
$30k
year to 30 September 2025
Total assets
$14k
$0 liabilities
Net assets
$14k
assets less liabilities
Directors and trustees
5
4.0 years on average
Left since last filing
0
no seats appear to have opened
Activity
G90
Voluntary health associations and medical disciplines
Filings on record
8
latest 2025
Obstetrical Society of Boston Inc's network
5 peoplei5 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (5). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.The board
5 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.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Anila JHA | Second Vice President | 2025 | 1 yr |
| Melanie Nathan MD (also filed as Melanie Nathan, Melanie Nathan) | Treasurer | 2020 | 6 yrs |
| Nicki Johnson | President | 2024 | 2 yrs |
| Padmasini Kandadai | First Vice President | 2025 | 1 yr |
| Thao Thieu MD (also filed as Thao Thieu, Thao Thieu) | Company secretary | 2018 | 8 yrs |
Under 5 years5 to 6 years6 years or more
Pay and hours
year to 30 September 2025iFrom 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.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Nicki Johnson | President | 2 | $0 | ||
| Holly Khachadoorian-Elia | Immediate Past President | 1 | $0 | ||
| Padmasini Kandadai | First Vice President | 1 | $0 | ||
| Anila Jha | Second Vice President | 1 | $0 | ||
| Melanie Nathan | Treasurer | 3 | $0 | ||
| Thao Thieu | Secretary | 1 | $0 | ||
| Alissa Dangel | Member-at-Large | 1 | $0 | ||
| Andrea Zuckerman | Second Member-at-Large | 1 | $0 | ||
| Amy Stagg | Third Member-at-Large | 1 | $0 |
No pay was reported for anyone in Part VII on this return.
About
- Legal name
- Obstetrical Society of Boston Inc
- EIN
- 043469680
- Address
- Co Melanie Nathan 36 Clifton Ave, Marblehead, MA, 01945
- State
- Massachusetts
- Activity (NTEE)
- G90 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
- 2 (IRS master file code)
- IRS ruling date
- 1 August 2001
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 8, latest 2025
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsThao Thieu MD
≥6years on the filingsMelanie Nathan MD
≥2years on the filingsNicki Johnson
≥1years on the filingsAnila JHA
Latest return
year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.- Total assets
- $14k
- Total liabilities
- $0
- Net assets or fund balances
- $14k
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2023 | $19k | $28k | Deficit $9k |
As filed on the IRS Form 990. US dollars.