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US nonprofit · EIN 112563303 · Plainview, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 112563303) - 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 tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay, grants paid (Schedule I).Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Plainview Medical Staff Society Inc

Donations deductible
Revenue
$138k
year to 31 December 2025
Expenses
$68k
year to 31 December 2025
Total assets
$1.1m
$0 liabilities
Net assets
$1.1m
assets less liabilities
Directors and trustees
4
5.4y av
Staff
0
5 volunteers
Left since last filing
0
no seats appear to have opened
Voting members
4
reported in Part VI
Exemption reinstated on 15 April 2013. The IRS had automatically revoked it on 15 November 2010 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.
How am I connected?

Plainview Medical Staff Society Inc's network

4 peoplei4 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (4). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

4 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.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 4 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Aleksander Shalshin MDPast Preside2019
7 yrs
Binny Koshy MDSecretary/Tr2023
3 yrs
Jonathan Klonsky MDPresident2020
6 yrs
Purna Shah MDPresident El2022
4 yrs
Under 5 years5 to 6 years6 years or more

Pay and hours

year to 31 December 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.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Jonathan Klonsky MDPresident0.5$0
Purna Shah MDPresident El0.5$0
Binny Koshy MDSecretary/Tr0.5$0
Aleksander Shalshin MDPast Preside0.5$0

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

About

Legal name
Plainview Medical Staff Society Inc
EIN
112563303
Address
888 Old Country Rd, Plainview, NY, 11803-4914
State
New York
Mission
To promote fraternal relationships among its members and to inculcate them in the high sense of loyalty to each other and to the standard of their profession. To promote the welfare and elevate the intellectual interests of its members and for the mutual advancement of the interest of its members who are present members of the medical and dental staff of central general hospital. (as filed on the Form 990)
Activity (NTEE)
Y03 Mutual and membership benefit
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Mutual & Membership Benefit
Size band
6 (IRS master file code)
Formed
1981
Principal officer
Jonathan Klonsky MD (as named on the Form 990)
IRS ruling date
1 August 2014
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥7years on the filingsAleksander Shalshin MD
≥6years on the filingsJonathan Klonsky MD
≥4years on the filingsPurna Shah MD
≥3years on the filingsBinny Koshy MD

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$1.1m
Total liabilities
$0
Net assets or fund balances
$1.1m
Contributions and grants received
$117k
Program service revenue
$0
Grants and similar paid out
$11k
Employees
0
Volunteers
5

Grants paid

1 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.
RecipientPurposeAmount
Northwell Health Foundation$6k

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Plainview Medical Staff Society, Inc. likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: New York Department of State, active corporations (data.ny.gov n9v6-gdp6). Licence: New York open data terms of use. Data last fetched 18 October 2026.
State
New York
Entity type
Domestic Not-For-Profit Corporation
Status
Active
Formed
26 January 1981
Registered agent
Not stated