John T Mather Memorial Hosp T C U
75 North Country Road, Port Jefferson, NY, 11777
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Order the reportFederal Quality Data
Official records from CMS Care Compare — reported by the facility and audited by the Centers for Medicare & Medicaid Services. We present them unmodified. Refreshed June 2026.
CMS Star Ratings
Facility & Staffing
- Ownership
- For profit - Individual
- Certified beds
- 16 · avg 13 residents/day
- Total nursing staff turnover
- 10% — lower than most New York nursing homesNew York avg: 40.3% · National avg: 46.1% · per CMS Care Compare
- RN turnover
- 5.6% — lower than most New York nursing homesNew York avg: 39.9% · National avg: 43.3% · per CMS Care Compare
- Administrators who left
- 0 departed — near the New York averageNew York avg: 0.4 · National avg: 0.5 · per CMS Care Compare
Medicare certification
- CMS Certification Number
- 335853
- Certified beds
- 16 beds · avg 13 residents/day
- Ownership type
- For profit - Individual
- Continuing-care community
- No
CMS Care Compare, processing date June 1, 2026
Ownership & operations
- Legal business name
- John T Mather Memorial Hospital
CMS Care Compare, processing date June 1, 2026
Federal ownership record
Disclosed owners (29 on record)
- Joseph ng
W-2 Managing Employee · since 2023
- William Mader
W-2 Managing Employee · since 2023
- Stephen j Bello
Corporate Director · since 2019
- Donald e Lippencott
Corporate Director · since 2019
- Marvin Colson
Corporate Director · since 2019
- Sylvia Diaz
Corporate Director · since 2019
+ 23 additional owners on the federal record.
Source: CMS Provider Enrollment data — SNF Enrollments + All Owners, as of May 2026.
Federal inspection record
Recent health-deficiency citations (most recent 8 of 12)
- D0882·May 23, 2025
Infection Control Deficiencies
Designate a qualified infection preventionist to be responsible for the infection prevent and control program in the nursing home.
- D0880·May 23, 2025
Infection Control Deficiencies
Provide and implement an infection prevention and control program.
- C0868·May 23, 2025
Administration Deficiencies
Have the Quality Assessment and Assurance group have the required members and meet at least quarterly
- F0812·May 23, 2025
Nutrition and Dietary Deficiencies
Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
- D0695·May 23, 2025
Quality of Life and Care Deficiencies
Provide safe and appropriate respiratory care for a resident when needed.
- D0655·May 23, 2025
Resident Assessment and Care Planning Deficiencies
Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted
- D0635·May 23, 2025
Resident Assessment and Care Planning Deficiencies
Provide doctor's orders for the resident's immediate care at the time the resident was admitted.
- D0880·Jun 20, 2024
Infection Control Deficiencies
Provide and implement an infection prevention and control program.
Fire-safety citations
3 Life-Safety-Code citations on file. Most recent: Jun 20, 2024. Fire-safety inspections cover building-level Life Safety Code compliance, separate from the resident-care health survey.
Source: CMS Provider Data Catalog — Health Deficiencies, Fire Safety Deficiencies, and Penalties datasets, snapshot Jun 1, 2026.
Facility background report
The entire federal paper trail on this facility, in one report.
We compile everything the government publishes about John T Mather Memorial Hosp T C Uinto one plain-English report: full inspection history with severity grades, every fine, staffing versus state averages, who really owns the facility, and how the owner's other facilities perform. Every fact cites its federal source.
Order the full background report — $249Where this information comes from
- Certification, capacity, ownership, star ratings, staffing, fines, deficiencies: CMS Care Compare, processing date June 1, 2026.
Data comes unaltered from the federal files. See every source we publish from.