John T Mather Memorial Hosp T C U is certified as a Medicare and Medicaid facility and has been approved to provide these services since 2007-04-04. Medicare covers short-term skilled nursing care (typically up to 100 days after a qualifying hospital stay). Medicaid covers long-term care for residents who meet financial eligibility requirements. Contact the facility at (631) 473-1320 or your local Medicaid office to verify current eligibility.

John T Mather Memorial Hosp T C U holds an overall CMS (Centers for Medicare & Medicaid Services) rating of 5 out of 5 stars. This is made up of three components: Health Inspection (3★), Staffing (5★), and Quality of Resident Care (5★). Our independent composite quality score — which uses the raw underlying CMS numbers to break ties between similarly-rated facilities — is 99.8/100, placing it #17 of 14703 facilities nationally and #2 of 596 in New York. Star ratings are a useful starting point, but the composite score and individual sub-ratings give a more complete picture for families comparing facilities.

Each resident at John T Mather Memorial Hosp T C U receives a reported average of 8 hours 45 minutes of total nurse staffing per day. This breaks down as: Registered Nurse (RN) coverage — 5 hours 20 minutes; Licensed Practical Nurse (LPN) — 0 minutes; Nurse Aide — 3 hours 25 minutes. On weekends, total nurse staffing is 7 hours 22 minutes per resident per day. The CMS Staffing Rating for this facility is 5 out of 5. The national average for total nursing hours is approximately 3.5 hrs/day. Total nursing staff turnover is 19.4%. Families are encouraged to ask about current staffing schedules during their facility visit.

The facility has received 3 fine(s) over the 5-year period, totaling $1,950. No substantiated complaints have been recorded in the available data. In the most recent CMS reporting period, the facility received 0 fine(s) totaling $0, and 0 Medicare payment denial(s). Total penalties: 0. The Total Weighted Health Survey Score is 30.0 (lower scores are better). Full inspection history and complaint details are available at medicare.gov/care-compare.

Nationally, John T Mather Memorial Hosp T C U ranks 17th out of 14,703 facilities (composite score: 99.8/100), placing it in the top 5% nationwide. Within NY, it ranks 2nd out of 596 nursing homes. In Port Jefferson, it ranks 1st out of 2 facilities. Among facilities sharing its ZIP code, it ranks 1st of 2. For 2026 staffing: total nurse hours rank #55 nationally and RN hours rank #16 nationally (#5 in NY). Our composite quality score of 99.8/100 weighs health inspections, quality of resident care, staffing hours, compliance record, and five-year performance trends — giving a more complete picture than CMS star ratings alone, which can place hundreds of facilities in the same 5-star bucket. To browse and compare all nursing homes in Port Jefferson, visit: https://nursinghomesnearme.org/new_york/port-jefferson/