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St. Catherine of Siena Hospital

Dialysis center · 50 Route 25A, Dialysis Unit, Smithtown, NY 11787

📞 (631) 862-3707

CMS star rating
47/ 100
Average
Better than 47% of US centers

At a glance

Operator
Independent · Non-profit
Dialysis options
✓ In-center hemodialysis✓ Peritoneal dialysis (PD)✗ Home hemodialysis training
Evening shift
No shift starting after 5 pm reported
Stations
18 dialysis chairs
Medicare-certified
Since 2000-03-01 · CCN 332405
Rank in Smithtown, NY
#1 of 2 dialysis centers
Rank in New York
#191 of 328 scored centers
County
Suffolk
ESRD Network
Network 2 (for grievances and help changing centers)

Patient outcomes and quality of care

CMS quality measures: better than the national average on 5 of 13 reported measures, worse on 4.

MeasureThis centerStateNationalvs. national
Patient deaths (risk-adjusted rate) (lower is better)
CMS: Better than Expected
14.819.122.2Better
Hospital admissions (risk-adjusted rate) (lower is better)
CMS: As Expected
173.5156.9148Worse
Readmitted within 30 days of a hospital stay (lower is better)
CMS: As Expected
26.6%28.4%27.2%About the same
Blood transfusions (risk-adjusted rate) (lower is better)
CMS: As Expected
38.233.732.5Worse
Bloodstream infections (ratio to expected) (lower is better)
CMS: As Expected
0.620.361Better
Emergency room visits (ratio to expected) (lower is better)
CMS: As Expected
0.950.810.99About the same
ER visits within 30 days of a hospital stay (ratio to expected) (lower is better)
CMS: As Expected
1.020.91.04About the same
Patients dialyzing through an AV fistula
CMS: As Expected
58%62.4%57.1%About the same
Patients with a long-term catheter (90+ days) (lower is better)25%20.2%19%Worse
Hemodialysis patients getting adequate dialysis (Kt/V ≥ 1.2)99%93%97%Better
Patients with high blood calcium (over 10.2 mg/dL) (lower is better)4%3.1%1%Worse
Patients with very high phosphorus (over 7.0 mg/dL) (lower is better)8%14.8%18%Better
Patients on the kidney transplant waitlist
CMS: As Expected
24.2%20.8%16.5%Better

Rates for deaths, hospital admissions and transfusions are risk-adjusted per 100 patient-years; ratios compare the center to what CMS expects for its patients (1.00 = as expected). State figures are the average of centers in the state. 'CMS:' notes show CMS's own verdict after accounting for statistical uncertainty.

What patients say (ICH-CAHPS survey)

CMS has not published these measures for this center (usually because too few patients were treated in the reporting period, or the center is new).

Location

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Other dialysis centers in Smithtown

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Frequently asked questions

Is St. Catherine of Siena Hospital Medicare-certified?
Yes. St. Catherine of Siena Hospital (CMS Certification Number 332405) has been Medicare-certified since 2000-03-01, which means it meets federal ESRD Conditions for Coverage and Medicare pays for covered dialysis there.
What dialysis options does St. Catherine of Siena Hospital offer?
St. Catherine of Siena Hospital reports offering in-center hemodialysis, peritoneal dialysis (pd) with 18 dialysis stations. It does not report a shift starting after 5 pm.
How does St. Catherine of Siena Hospital compare to other dialysis centers?
St. Catherine of Siena Hospital scores 47/100 on Dialysis Scorecard (average), better than 47% of US dialysis centers, and ranks #191 of 328 scored centers in New York. CMS gives it 2 out of 5 stars.
Who owns St. Catherine of Siena Hospital?
St. Catherine of Siena Hospital is independently owned, not part of a dialysis chain and is a non-profit facility.

Source: CMS Provider Data Catalog, Dialysis Facility Compare and ICH-CAHPS (2026-09-29). Dialysis Scorecard is not affiliated with St. Catherine of Siena Hospital. Data may lag real-world changes; verify with the center. Is this your center? Report a correction.