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Mather Hospital

75 NORTH COUNTRY ROAD · PORT JEFFERSON, NY · 11777 · Acute Care Hospitals

2.30x Far above peers

vs. the regional median (the other ~300 NY/NJ/CT hospitals publishing the same code).

How is this computed?High-confidence score: 10% trimmed mean across 47 of 57 target procedures, commercial payers, 5x outlier cap. Based on 47 of 57 high-confidence target procedures. A broader all-codes view (every commercial billing code this hospital publishes, 2,105 codes) puts the score at 1.90x.

Mather Hospital bills well above peers — about 2.30x the regional median overall. Within departments, Emergency/Eval prices are notably high (1.71x, 51 codes). The price spread is moderate (B grade), with some procedures priced unexpectedly high.

A nearby hospital 9.63 mi away is ~30% cheaper overall.

St. Catherine of Siena Hospital has an overall price level of 1.60x vs. this hospital's 2.30x, with 2,135 procedures in common.

53% of codes priced above the regional median Reliability B (Moderate)
why?Moderate price spread (IQR ratio 2.6x) with some outliers (6% above 3x)

How A/B/C is determined: A = narrow price spread (IQR < 2.0×) with <5% of codes priced more than 3× the regional median. B = moderate (IQR 2.0–3.0× OR 5–20% above 3×). C = wider than that.

Cost by department

Each ratio compares this hospital's prices in that department to the median across NY/NJ/CT hospitals for the same department.

DepartmentRatioCodes% above median
Inpatient 0.93x 1,850 44%
Surgery 0.99x 710 46%
Lab 1.58x 231 90%
Imaging 1.23x 164 81%
Other 1.28x 149 77%
Emergency/Eval 1.71x 51 86%
Cardiac 1.19x 34 79%
Therapy 1.89x 21 76%

Hospital info

  • Type: Acute Care Hospitals
  • Ownership: Voluntary non-profit - Private
  • Beds: 195
  • Annual discharges: 9,048
  • CMS overall quality star rating: 5/5
Methodology & sources

Prices extracted from this hospital's CMS-mandated machine-readable transparency file (45 CFR 180). Headline statistic: 10% trimmed mean across 47 of 57 target procedures, commercial payers, 5x outlier cap. Validated against RAND Hospital Price Transparency Study v5.1 employer claims data at Spearman ρ = 0.73 (n = 105 hospitals).

Download the original transparency file from Mather Hospital.