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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Organizations Health Care John T Mather Memorial Hospital

John T Mather Memorial Hospital

Fiscal year ending 2017. Filed on November 17, 2018.

75 North Country Road
Port Jefferson, New York 11777

John T Mather Memorial Hospital (EIN: 11-1639818) has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2017 IRS Form 990 filing, John T Mather Memorial Hospital, a 501(c)(3) charitable organization, reported compensation for 12 out of 2,947 total employees. Among the employees shown here, the average compensation is $617,376. The highest compensated employee at John T Mather Memorial Hospital is Kenneth D Roberts with fiscal year 2017 compensation of $1,101,243.

Revenue, expenses, and employee compensation

Revenue

$361,822,861

Expenses

$360,549,784

Employee compensation

$203,799,743
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Kenneth D Roberts
President and Chief Executive Officer
$1,101,243
$1,029,071 No related comp$72,172
Yuval Hiltzik
Physician
$798,702
$737,330 No related comp$61,372
Syed Hussaini
Physician
$709,341
$665,969 No related comp$43,372
Nick Patel
Physician
$702,446
$638,374 No related comp$64,072
Peter Ottavio
Physician
$696,371
$634,999 No related comp$61,372
Keith Harris
Physician
$695,251
$651,391 No related comp$43,860
Mohammad Bilal, M.D.
Board Member
$621,786
$578,414 No related comp$43,372
Joan C Faro
Chief Medical Officer
$528,592
$488,200 No related comp$40,392
Joseph Wisnoski
Senior Vice President and Chief Financial Officer
$497,623
$451,551 No related comp$46,072
Kevin J Murray
Senior Vice President, Administration
$373,043
$298,132 No related comp$74,911
Marie E Mulligan
Vice President, Nursing
$358,257
$306,875 No related comp$51,382
Wayne S Shattes
Vice President, Administration
$325,853
$253,783 No related comp$72,070

Benchmark Employee Compensation

Non-Employee Board Members

David Shenouda, M.D.
Pres-Med Staff
$40,000
$40,000 No related compNo other comp
Nicholas Craig, M.D.
Vp-Med Staff
$20,000
$20,000 No related compNo other comp
Kenneth A Jacoppi, Esq
Chair
No compensation reported
Edward J Weiss
Board Member
No compensation reported
James Danowski
Board Member
No compensation reported
Harold Tranchon Jr
Vice Chair
No compensation reported
John R Sini
Vice Chair
No compensation reported
Richard Lusak
Board Member
No compensation reported
Betsy Noyes Britton
Vice Chair
No compensation reported
Konrad J Kuhn
Vice Chair
No compensation reported
John K Diviney, Esq
Board Member
No compensation reported
Debra L Engelhardt
Board Member
No compensation reported

Contractors

Stony Brook Medicine
Medical
$7,906,619
Emergency Medicine Physicians
Medical
$7,581,750
Allscripts LLC
Infotech Consultants
$2,628,541
United Westlabs Inc
Laboratory
$1,177,047
Siemens Medical Solutions Inc.
Medical Technology
$1,022,974

Mission Statement

JOHN T. MATHER MEMORIAL HOSPITAL ("MATHER") IS A NON-PROFIT COMMUNITY HOSPITAL THAT IS PART OF NORTHWELL HEALTH. MATHER STRIVES TO IMPROVE THE HEALTH OF THE COMMUNITIES IT SERVES AND IS COMMITTED TO PROVIDING THE HIGHEST QUALITY CLINICAL CARE; EDUCATING THE CURRENT AND FUTURE GENERATIONS OF HEALTHCARE PROFESSIONALS; PROMOTING HEALTH EDUCATION; AND CARING FOR THE ENTIRE COMMUNITY REGARDLESS OF ABILITY TO PAY.

Revisions to this organization profile

November 12, 2025:
2024 John T Mather Memorial Hospital 990 filed
November 12, 2024:
2023 John T Mather Memorial Hospital 990 filed
November 13, 2023:
2022 John T Mather Memorial Hospital 990 filed

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