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Nursing home in Port Jefferson, Suffolk County

John T. Mather Memorial Hospital Transitional Care Unit

75 North Country Road, Port Jefferson, NY 11777 · (631) 473-1320

0 federal penalties on record

John T. Mather Memorial Hospital Transitional Care Unit is a 16-bed nursing home at 75 North Country Road, Port Jefferson, NY 11777. Medicare rates the facility 5 out of 5 stars overall and 3 of 5 on health inspections. No actual-harm or immediate-jeopardy citations appear in current federal data.

Medicare star ratings

Overall Medicare rating

5 / 5

Medicare's summary rating combining inspections, staffing and quality measures.

Health inspection rating

3 / 5

Based on findings from state health inspections and complaint investigations.

Staffing rating

5 / 5

Based on reported nurse and aide staffing hours per resident.

Quality measures rating

5 / 5

Based on resident outcomes such as falls, pressure ulcers and hospitalizations.

Staffing

Total nurse hours per resident per day
7.99
RN hours per resident per day
4.81
Nursing staff turnover
3.4%
RN turnover
0.0%

Staffing hours are self-reported payroll data published by CMS. Ask the facility about current staffing, including weekends.

Facility facts

Address
75 North Country Road, Port Jefferson, NY 11777
County
Suffolk
Certified beds
16
Average residents per day
14
Ownership type
For profit - Individual
Legal business name
John T Mather Memorial Hospital
Chain affiliation
None reported
In Medicare/Medicaid since
2007
CMS Certification Number (CCN)
335853
Most recent standard inspection
May 23, 2025

Location and getting there

John T. Mather Memorial Hospital Transitional Care Unit is located at 75 North Country Road in Port Jefferson, Suffolk County, on Long Island (ZIP 11777). The nearest Long Island Rail Road station is Port Jefferson on the Port Jefferson Branch, about 0.3 miles away. The nearest hospital is John T Mather Memorial Hospital of Port Jefferson New York Inc, about 0.3 miles away. Distances are straight-line estimates; confirm travel routes before visiting.

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Inspection record

Inspections on record
3
Total health citations
12
Serious citations (harm or immediate jeopardy)
0
Immediate jeopardy citations
0

Serious citations

Citations where inspectors found actual harm to a resident or immediate jeopardy to resident health or safety.

No actual-harm or immediate-jeopardy citations appear in current federal data.

Inspection history

Inspection dateTypeCitationsMost serious findingOfficial report
May 23, 2025Standard health inspection7Potential for harm (widespread)View CMS report
June 20, 2024Standard health inspection3Potential for harm (isolated)View CMS report
October 5, 2022Standard health inspection2Potential for harm (pattern)View CMS report

Federal penalties

Fines
0
Total fines
$0
Payment denials
0

No federal fines or payment denials appear in current Medicare data for the past three years.

Complaints to the New York State Department of Health

Complaints received
0
Complaints per 100 beds
0.0
Statewide average per 100 beds
57.1
On-site complaint inspections
0

NYS DOH complaint data through July 31, 2026.

Owners and managers reported to CMS

NameRole reported to CMS
Northwell Healthcare IncDirect owner (5% or greater) — 100% (since 01/01/2018)
Sharon DonnellyManaging employee (since 09/12/2016); Corporate director (since 09/12/2016); Operational/managerial control (since 09/12/2016)
Christina IadanzaManaging employee (since 09/12/2016); Corporate director (since 09/12/2016); Operational/managerial control (since 09/12/2016)
Christine LivreriManaging employee (since 09/12/2016); Corporate director (since 09/12/2016); Operational/managerial control (since 09/12/2016)
William MaderManaging employee (since 08/01/2023)
Joseph NgManaging employee (since 08/01/2023)
Kenneth RobertsManaging employee (since 05/01/1986); Corporate director (since 05/01/1986); Corporate officer (since 05/01/1986); Operational/managerial control (since 05/01/1986)
Joseph WisnoskiManaging employee (since 07/12/2016); Corporate director (since 06/01/2009); Operational/managerial control (since 07/16/2013)
Stephen BelloCorporate director (since 09/01/2019)
Roger BlumencranzCorporate director (since 02/01/2018); Corporate officer (since 02/01/2018); Operational/managerial control (since 02/01/2018)
Betsy BrittonCorporate director (since 05/01/1979); Corporate officer (since 05/01/1979); Operational/managerial control (since 05/01/1979)
Marvin ColsonCorporate director (since 07/01/2019)
Nicholas CraigCorporate director (since 01/01/2017); Corporate officer (since 01/01/2017); Operational/managerial control (since 01/01/2017)
James DanowskiCorporate director (since 11/01/2004); Corporate officer (since 11/01/2004); Operational/managerial control (since 11/01/2004)
Sylvia DiazCorporate director (since 07/01/2019)
John DivineyCorporate director (since 04/01/2019); Corporate officer (since 05/01/2014); Operational/managerial control (since 05/01/2014)
Debra EngelhardtCorporate director (since 09/01/2015); Corporate officer (since 09/01/2015)
Kathryn FreyCorporate director (since 07/01/2005); Corporate officer (since 10/01/2005); Operational/managerial control (since 10/01/2005)
Timothy GlynnCorporate director (since 12/01/2011); Operational/managerial control (since 12/01/2011)
Konrad KuhnCorporate director (since 05/01/1978); Corporate officer (since 05/01/1978); Operational/managerial control (since 05/01/1978)
Donald LippencottCorporate director (since 07/01/2019)
Ralph NappiCorporate director (since 05/01/1978); Corporate officer (since 01/01/2018); Operational/managerial control (since 01/01/2018)
Christine RuggieroCorporate director (since 04/01/2019)
John SiniCorporate director (since 11/01/1982); Corporate officer (since 11/01/1982); Operational/managerial control (since 11/01/1982)
Leo SternlichtCorporate director (since 11/01/2004); Corporate officer (since 11/01/2004); Operational/managerial control (since 11/01/2004)
Harold TranchonCorporate director (since 05/01/1979); Corporate officer (since 05/01/1979); Operational/managerial control (since 05/01/1979)
Edward WeissCorporate director (since 02/01/1988); Corporate officer (since 02/01/1988); Operational/managerial control (since 02/01/1988)
John YuCorporate director (since 04/01/2019)
Michele CusackCorporate officer (since 01/01/2018)

Official reports and records

These links open official and independent records for CCN 335853. Read several inspections, not only the most recent, to see whether problems repeat.