Total health inspections
3
New York average 3.6
Last Health inspection on May 2025
John T Mather Memorial Hospital of Port Jefferson New York Inc
Nursing Home · Suffolk County, NY
CMS overall rating
The Overall CMS Rating is scored from 1 to 5 stars and combines results from health inspections, staffing levels, and quality measures. Health inspections carry the most weight. Staffing and quality scores can increase or decrease the final rating based on performance compared to state and national standards.
The Overall CMS Rating is scored from 1 to 5 stars and combines results from health inspections, staffing levels, and quality measures. Health inspections carry the most weight. Staffing and quality scores can increase or decrease the final rating based on performance compared to state and national standards.
John T Mather Memorial Hospital of Port Jefferson New York Inc
Nursing Home · Suffolk County, NY
CMS overall rating
The Overall CMS Rating is scored from 1 to 5 stars and combines results from health inspections, staffing levels, and quality measures. Health inspections carry the most weight. Staffing and quality scores can increase or decrease the final rating based on performance compared to state and national standards.
The Overall CMS Rating is scored from 1 to 5 stars and combines results from health inspections, staffing levels, and quality measures. Health inspections carry the most weight. Staffing and quality scores can increase or decrease the final rating based on performance compared to state and national standards.
Overview of John T Mather Memorial Hospital of Port Jefferson New York INC
Located at 75 North Country Road in Port Jefferson, John T. Mather Memorial Hospital is a 249-bed facility operated as a voluntary non-profit community. It holds a perfect 5-star CMS rating and ranks highest in New York for nursing staffing intensity. The facility offers orthopedics, bariatric surgery, cardiac services, and neuroscience programs.
The facility’s distinguishing characteristic is unmatched staffing depth.
Nurses work 8 hours 53 minutes daily per resident; more than double New York’s typical 3-hour 29-minute average. All 163 staff members are direct employees with no contractor reliance. The roster includes 22 registered nurses, 37 certified nursing aides, 10 speech-language pathologists, 14 respiratory technicians, and specialized occupational and physical therapy personnel. Weekend coverage maintains 8 hours 13 minutes per resident.
Regulatory compliance is document-perfect. A September 2025 inspection yielded no deficiencies. Over four years, the facility accumulated 12 health citations, well below state average, with zero critical or serious violations. Three citations involved infection control; the remainder addressed resident rights, care quality, and administrative matters.
Zero federal penalties have been assessed in the past three years, and complaint investigations number zero.
Vaccination rates for short-stay residents exceed 98% for pneumococcal coverage and 99% for influenza. No short-stay residents newly initiated antipsychotic therapy; a 100% improvement over state patterns.
However, significant legal exposure must factor into decision-making. Since 2012, the facility has been named in 77 lawsuits. Thirty-two cases remain active as of May 2026, with court proceedings scheduled for April 27, 2026. This volume of concurrent litigation, independent of the facility’s strong inspection record, signals ongoing legal disputes that represent material risk.
John T. Mather delivers exceptional clinical staffing and regulatory compliance but carries substantial litigation exposure that requires thorough evaluation before placement.
Quality ratings
The Overall CMS Rating combines results from health inspections, staffing levels and quality measures. Health inspections carry the most weight. Staffing and quality scores can increase or decrease the final rating based on performance compared to state and national standards.
Based on the results of the facility's three most recent standard inspections and any complaint investigations. CMS reviews the number, scope, and severity of deficiencies, with more recent findings weighted more heavily.
Measures average nursing staff hours per resident per day, including Registered Nurses (RNs) and total nursing staff. Ratings are adjusted based on the level of care residents require and are compared to state and national benchmarks.
Based on clinical and physical health indicators reported to CMS, such as hospital readmissions, falls, pressure ulcers, and improvements in mobility. These measures reflect how well residents' health needs are being managed.
Staffing hours breakdown
Daily nursing hours per resident by staff type, reported to CMS. Higher is generally better — compare this facility to state and national averages to see where staffing stands.
Total nursing care / resident
This home is ranked 1st out of 387 homes in New York. Total adjusted nursing hours per resident per day, combining RN, LPN, and aide time. CMS adjusts this for case-mix so facilities can be fairly compared.
This home is ranked 1st out of 387 homes in New York. Total adjusted nursing hours per resident per day, combining RN, LPN, and aide time. CMS adjusts this for case-mix so facilities can be fairly compared.
8h 53m per day
Rank #1 / 387Nurse hours — State benchmarkedThis home is ranked 1st out of 387 homes in New York. Shows adjusted nurse hours per resident per day benchmarked to the New York average, with a ranking across 387 New York SNFs. More hours mean more direct care. The national average is about 3.5 hrs; below 3.0 is a red flag.Click the rank badge to see the full State ranking.Click here to see the full State ranking.
vs New York avg
+154%
Standout metric
Weekend Total Nursing is +156% above state avg
| Staff type | Hours / Day / Resident | vs state avg |
|---|---|---|
|
Weekend Total Nursing
Combined nursing hours (RN + LPN + Nurse Aide) per resident per day on weekends. Staffing often drops on weekends — this figure reveals whether the facility maintains adequate coverage outside of weekday hours.
| 8h 13m per day | ▲ 156% State avg: 3h 12m per day · National avg: 3h 25m per day |
249-bed community Rank #111 / 748Bed count — State benchmarkedThis home is ranked 111th out of 748 homes in New York. Shows this facility's certified or reported bed count compared to other New York SNFs. Larger communities may offer more amenities, programs, and on-site services for residents and families.Click the rank badge to see the full State ranking.Click here to see the full State ranking.
A large-scale community that may provide a wide range of amenities, services, and structured programs.
Walk Score: 73 / 100 Rank #564 / 1173Walk Score — State benchmarkedThis home is ranked 564th out of 1173 homes in New York. Shows how walkable this facility's neighborhood is compared to the average Walk Score across New York SNFs. Higher scores benefit residents, families, and staff.Click the rank badge to see the full State ranking.Click here to see the full State ranking.
Very walkable. Most errands can be accomplished on foot, and many essentials are within a short walk.
About this community
Facility TypeNursing Home
StatusActive
CountySuffolk
License Number5149000H
Specific ProgramsAbout Mather, Careers at Mather, Community resources, For Providers, Ways to give, JTM Foundation, News & publications, Nursing excellence, Our blogs, Physician portal, Policies & notices, Support Mather
Inspection History
In New York, the Department of Health, Office of Aging and Long Term Care performs unannounced onsite inspections to monitor compliance with state and federal healthcare regulations.
Inspection Score
A composite 0–100 score combining this facility's inspections, citations, complaints, and enforcement actions relative to the New York state average. We don't score profiles with fewer than 3 inspections on record because a small inspection history reads as "below average" on every count-based metric — that would over-reward a facility just for being new.
A composite 0–100 score combining this facility's inspections, citations, complaints, and enforcement actions relative to the New York state average. We don't score profiles with fewer than 3 inspections on record because a small inspection history reads as "below average" on every count-based metric — that would over-reward a facility just for being new.
Limited inspection history. Not enough information to score against the New York benchmark.
New York assisted living residences benchmark: B 83/100
Inspection score not available. Not enough information to score against the New York benchmark.
Inspection Scorecard
This scorecard compares key inspection, citation, and complaint metrics at this facility against the New York state average. Metrics rated ≥15% worse than average are highlighted in red; those ≥15% better are highlighted in green.
Overall vs. NY average
0 Worse
No metrics in this bucket.
1 Better
Metrics better than New York average:
• Complaint visits (100% below)
• Complaint visits (100% below)
Inspections
| This Facility | NY Average | vs. NY Avg |
|---|---|---|---|
|
Complaint visits
On-site visits triggered by formal complaints filed by residents, families, or staff.
| 0 | 6 | This facility has 100% fewer complaint visits than a typical New York assisted living residence (0 vs. NY avg 6).↓ 100% better |
Inspection Reports Summary
An editor-reviewed summary of the themes and findings across this facility's recent inspection reports.
- Most recent inspection through September 30, 2025 found no citations or enforcement actions.
- No substantiated complaints were reported during the entire inspection period.
- The facility maintained a clean record with no deficiencies from October 1, 2021 to September 30, 2025.
Health Inspection History
Inspections
Total health citations
12
Rank #108 / 393Health citations — State benchmarkedThis home is ranked 108th out of 393 homes in New York. Shows this facility's total health deficiency citations benchmarked to the New York State average, with a ranking across all 393 NY SNFs. Lower citation counts earn a better rank.Click the rank badge to see the full State ranking.Click here to see the full State ranking.
New York average 18.5
Citations per inspection
4
Rank #125 / 393Citations per inspection — State benchmarkedThis home is ranked 125th out of 393 homes in New York. Shows average deficiency citations per CMS inspection for this facility versus the New York mean across 393 SNFs with citation data. Lower is better.Click the rank badge to see the full State ranking.Click here to see the full State ranking.
New York average 5.05
Health citations are formal notices following inspections when they fail to comply with safety and care standards.
All 12 citations resulted from standard inspections.
Breakdown of citation severity (last 4 years)
Critical health citations
0
100% better than New York averageNew York average: 0.2
Serious health citations
0
100% better than New York averageNew York average: 0.2
Citations history (last 4 years)
Administration minor citation
May 23, 2025
Corrected
Infection Control moderate citation
May 23, 2025
Corrected
Infection Control moderate citation
May 23, 2025
Corrected
Nutrition moderate citation
May 23, 2025
Corrected
Lawsuit overview for John T Mather Memorial Hospital of Port Jefferson New York Inc
Summary of court-record activity tied to this facility, compiled from publicly available case dockets.
Source: State court e-filing records
Total Cases
Every lawsuit on record involving this facility since the earliest filing. Long-term volume signals overall legal exposure.
77
Every lawsuit on record involving this facility since the earliest filing. Long-term volume signals overall legal exposure.
77
Active Cases
Lawsuits still moving through the courts. Active claims can affect day-to-day operations, settlement risk, and insurance posture.
32
Lawsuits still moving through the courts. Active claims can affect day-to-day operations, settlement risk, and insurance posture.
32
Closed
Cases that have been disposed of — dismissed, settled, or decided. Shows how the facility has historically resolved disputes.
43
Cases that have been disposed of — dismissed, settled, or decided. Shows how the facility has historically resolved disputes.
43
Since
Year of the earliest case on record. A long history with steady filings suggests persistent issues; a recent first filing means newer exposure.
2012
Year of the earliest case on record. A long history with steady filings suggests persistent issues; a recent first filing means newer exposure.
2012
Most Recent
Most recent filing on record. Recent activity means legal disputes are still being raised against this facility.
2026
Most recent filing on record. Recent activity means legal disputes are still being raised against this facility.
2026
Next Court Date
Next scheduled court appearance on record across active cases.
Apr 27, 2026
Next scheduled court appearance on record across active cases.
Apr 27, 2026Staffing Data
Reporting period: October 1 – December 31, 2025 (Q4 2025). Source: CMS Payroll-Based Journal report.
Total staff
163
Employees
163
Contractors
0
Staff to resident ratio
16.30:1
9204% better than New York average
Avg staff/day
27
Average shift
5.9 hours
23% worse than New York average
Total staff hours (quarter)
14,664
Nursing staff breakdown
Q4 2025 · Oct 1 – Dec 31
This data comes from the CMS Payroll-Based Journal report covering October 1 – December 31, 2025.
Registered Nurse
Manages medical care and health needs.
RN Staff
All 22 RN Staff are full-time employees. No contractors work on this role.
22
All 22 RN Staff are full-time employees. No contractors work on this role.
22
Average shift length
Average shift length. Calculated as total hours divided by days worked and average staff per day.
8.8 hours
Average shift length. Calculated as total hours divided by days worked and average staff per day.
8.8 hoursLicensed Practical Nurse
Assists with medical care and medications.
LPN Staff
No LPN Staff reported this quarter.
0
No LPN Staff reported this quarter.
0
Average shift length
Average shift length. Calculated as total hours divided by days worked and average staff per day.
—
Average shift length. Calculated as total hours divided by days worked and average staff per day.
—Certified Nursing Assistant
Helps with daily care and mobility.
CNA Staff
All 37 CNA Staff are full-time employees. No contractors work on this role.
37
All 37 CNA Staff are full-time employees. No contractors work on this role.
37
Average shift length
Average shift length. Calculated as total hours divided by days worked and average staff per day.
8.9 hours
Average shift length. Calculated as total hours divided by days worked and average staff per day.
8.9 hoursContractor staffing
Q4 2025 · Oct 1 – Dec 31
This data comes from the CMS Payroll-Based Journal report covering October 1 – December 31, 2025.
Total hours from contractors
0% — all staff are direct employees this quarter
Staff by category
Q4 2025 · Oct 1 – Dec 31
This data comes from the CMS Payroll-Based Journal report covering October 1 – December 31, 2025.
| Registered Nurse | 22 | 0 | 22 | 5,823 | 92 | 100% | 8.8 |
| Certified Nursing Assistant | 37 | 0 | 37 | 4,313 | 92 | 100% | 8.9 |
| Speech Language Pathologist | 10 | 0 | 10 | 984 | 91 | 99% | 4.8 |
| Physical Therapy Assistant | 15 | 0 | 15 | 854 | 92 | 100% | 2.9 |
| Mental Health Service Worker | 8 | 0 | 8 | 492 | 78 | 85% | 6.2 |
| Respiratory Therapy Technician | 14 | 0 | 14 | 392 | 85 | 92% | 3.7 |
| Physical Therapy Aide | 3 | 0 | 3 | 374 | 74 | 80% | 4.8 |
| Nurse Practitioner | 1 | 0 | 1 | 360 | 48 | 52% | 7.5 |
| Other Social Services Staff | 7 | 0 | 7 | 358 | 92 | 100% | 3.7 |
| Occupational Therapy Aide | 4 | 0 | 4 | 204 | 79 | 86% | 2.6 |
| Medical Director | 1 | 0 | 1 | 152 | 66 | 72% | 2.3 |
| Administrator | 1 | 0 | 1 | 140 | 23 | 25% | 6.1 |
| Occupational Therapy Assistant | 5 | 0 | 5 | 128 | 64 | 70% | 2 |
| Other Activities Staff | 23 | 0 | 23 | 71 | 81 | 88% | 0.4 |
| Qualified Activities Professional | 7 | 0 | 7 | 16 | 36 | 39% | 0.4 |
| Qualified Social Worker | 5 | 0 | 5 | 4 | 7 | 8% | 0.6 |
22 Registered Nurse
% of Days
100%
37 Certified Nursing Assistant
% of Days
100%
10 Speech Language Pathologist
% of Days
99%
15 Physical Therapy Assistant
% of Days
100%
8 Mental Health Service Worker
% of Days
85%
14 Respiratory Therapy Technician
% of Days
92%
3 Physical Therapy Aide
% of Days
80%
1 Nurse Practitioner
% of Days
52%
7 Other Social Services Staff
% of Days
100%
4 Occupational Therapy Aide
% of Days
86%
1 Medical Director
% of Days
72%
1 Administrator
% of Days
25%
5 Occupational Therapy Assistant
% of Days
70%
23 Other Activities Staff
% of Days
88%
7 Qualified Activities Professional
% of Days
39%
5 Qualified Social Worker
% of Days
8%
Penalties and fines
Federal penalties imposed by CMS for regulatory violations, including civil money penalties (fines) and denials of payment for new Medicare/Medicaid admissions.
Source: CMS Penalties Database
No penalties in the past 3 years
No civil money penalties or payment denials were reported in the last 3 years.
Quality of care over time
These measures show how residents usually do over time at this home, based on health outcomes and preventive care.
Short-stay resident measures
Pneumococcal Vaccine
Percent of short-stay residents assessed and appropriately given the pneumococcal vaccine
98.8%
Percent of short-stay residents assessed and appropriately given the pneumococcal vaccine
98.8%
29% better than New York averageNew York average: 76.6%
Antipsychotic medication increase
Percent of short-stay residents who newly received an antipsychotic medication
0.0%
Percent of short-stay residents who newly received an antipsychotic medication
0.0%
100% better than New York averageNew York average: 1.3%
Influenza Vaccine
Percent of short-stay residents assessed and appropriately given the seasonal influenza vaccine
99.6%
Percent of short-stay residents assessed and appropriately given the seasonal influenza vaccine
99.6%
26% better than New York averageNew York average: 78.8%
Quality measures are calculated from Minimum Data Set (MDS) assessments. For most measures, lower percentages indicate better care quality.
Facility Characteristics
Source: CMS Long-Term Care Facility Characteristics (Data as of Jan 2026)
Total residents
10
Medicare
6
60% of residents
Private pay or other
4
40% of residents
Programs & Services
Residents Group
Residents meet regularly to discuss policies, care quality, and activities
Family Member Group
Family members meet regularly to discuss policies, care quality, and activities
Nurse Aide Training
State-approved Nurse Aide Training and Competency Evaluation Program on-site
Active Family Council
Organized group of family members that meets regularly to discuss facility policies, resident care, and activities.
Active Resident Council
Organized group of residents that meets regularly to discuss facility policies, quality of life, and activities.
Data sourced from CMS Long-Term Care Facility Characteristics quarterly report. Payer mix reflects the current resident census by primary payment source.
Places of interest near John T Mather Memorial Hospital of Port Jefferson New York Inc
132.5 miles from city center
Estimated distance in miles from Port Jefferson's city center to John T Mather Memorial Hospital of Port Jefferson New York Inc's address, calculated via Google Maps.
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Financial Assistance for
Nursing Home in New York
John T Mather Memorial Hospital of Port Jefferson New York Inc is located in Port Jefferson, New York.
Here are the financial assistance programs available to residents in New York.
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The information below is reported by the New York State Department of Health.
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Frequently Asked Questions about John T Mather Memorial Hospital of Port Jefferson New York Inc
Is John T Mather Memorial Hospital of Port Jefferson New York Inc in a walkable area?
John T Mather Memorial Hospital of Port Jefferson New York Inc has a walk score of 73. Very walkable. Most errands can be accomplished on foot, and many essentials are within a short walk.
What is the license number of John T Mather Memorial Hospital of Port Jefferson New York Inc?
According to NY state health department records, John T Mather Memorial Hospital of Port Jefferson New York Inc's license number is 5149000H.
How many beds does John T Mather Memorial Hospital of Port Jefferson New York Inc have?
John T Mather Memorial Hospital of Port Jefferson New York Inc has 249 beds.
Are there photos of John T Mather Memorial Hospital of Port Jefferson New York Inc?
Yes — there are 4 photos of John T Mather Memorial Hospital of Port Jefferson New York Inc in the photo gallery on this page.
What is the address of John T Mather Memorial Hospital of Port Jefferson New York Inc?
John T Mather Memorial Hospital of Port Jefferson New York Inc is located at 75 North Country Road.
What is the phone number of John T Mather Memorial Hospital of Port Jefferson New York Inc?
(631) 473-1320 will put you in contact with the team at John T Mather Memorial Hospital of Port Jefferson New York Inc.
What county is John T Mather Memorial Hospital of Port Jefferson New York Inc located in?
John T Mather Memorial Hospital of Port Jefferson New York Inc is in Suffolk County.
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