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St. Catherine of Siena Hospital

Dialysis center in Smithtown, NY

Medicare-certified2★ CMS rating

Call (631) 862-3707Send a messageMap ↗

Public-record details

Address
50 Route 25a, Dialysis Unit, Smithtown, NY 11787
Phone
(631) 862-3707
Listed under
In-center hemodialysis, Peritoneal dialysis, Nonprofit
Medicare CCN
332405
CMS star rating
2 of 5
Dialysis stations
18
Services
In-center hemodialysis, peritoneal dialysis
Shift starting 5 pm or later
No
Chain
Independent (not part of a chain)
Ownership
Nonprofit
Medicare-certified since
Mar 1, 2000
ESRD Network
Network 2
County
Suffolk

CMS certification number 332405. Source: CMS Dialysis Facility Listing by Facility (record). Data as of 2026-09-30.

Patient outcomes

CMS compares each facility's results with what it would expect given its patients' age, health and other factors.

Patient survival
Jan 2021–Dec 2024
Better than expected
Hospital admissions
Jan 2024–Dec 2024
As expected
Hospital readmissions
Jan 2024–Dec 2024
As expected
Blood transfusions
Jan 2024–Dec 2024
As expected
Bloodstream infections
Jan 2024–Dec 2024
As expected
Emergency department visits
Jan 2024–Dec 2024
As expected
Patients on the transplant waitlistAs expected
Fistula useAs expected
Adult hemodialysis patients with adequate dialysis (Kt/V ≥ 1.2)99%
Adult patients with a long-term catheter25%
Adult patients with high calcium (over 10.2 mg/dL)4%
Patients waitlisted for a kidney transplant24.2%

Source: CMS Dialysis Facility Listing (Care Compare). Claims period Oct 2024–Sep 2025. Measures with too few patients are not reported and are left out here.

“As expected” means the center's result was not reliably different from what CMS predicted for its patients — it is the most common result. Ask the center about any “worse than expected” measure and what it is doing about it. Concerns you can't resolve with the center can go to your ESRD Network.

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