ST. CATHERINE OF SIENA MEDICAL CENTER
NPI 1497741763
Skilled Nursing Facility in Smithtown, NY

Active since September 22, 2005CLIA 33D0981825 · Waiver
5/5
Overall Rating
52 ROUTE 25A, SMITHTOWN, NY 11787(631) 862-3900(631) 862-3983 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2026, Oct 19, 2022, Apr 12, 2017 (3 updates tracked since 2017).

About St. Catherine Of Siena Medical Center NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ST. CATHERINE OF SIENA MEDICAL CENTER (NPI 1497741763), doing business as St Catherine Of Siena Nursing Home, is a healthcare organization registered as a skilled nursing facility in Smithtown, New York and active in the NPI registry since September 2005. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists Christopher Nelson, President, as its authorized official.

NPPES Registry Identity

NPI1497741763
Entity TypeOrganization
Primary Taxonomy314000000X
Legal Business NameST. CATHERINE OF SIENA MEDICAL CENTER
Location Address52 ROUTE 25ASmithtown, NY 11787-1346
Mailing Address52 Route 25aSmithtown, NY 11787-1346 · (631) 862-3905
Fax(631) 862-3983
Organization SubpartYes
Authorized OfficialChristopher NelsonPresident · (516) 520-2301
Enumeration DateSeptember 22, 2005
Last NPPES UpdateApril 23, 20263 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1497741763 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySkilled Nursing FacilityNursing & Custodial Care Facilities
Taxonomy Code314000000X
License✔ Licensed in NY · 5157312N
Definition
(1) A skilled nursing facility is a facility or distinct part of an institution whose primary function is to provide medical, continuous nursing, and other health and social services to patients who are not in an acute phase of illness requiring services in a hospital, but who require primary restorative or skilled nursing services on an inpatient basis above the level of intermediate or custodial care in order to reach a degree of body functioning to permit self care in essential daily living. It meets any licensing or certification standards et forth by the jurisdiction where it is located. A skilled nursing facility may be a freestanding facility or part of a hospital that has been certified by Medicare to admit patients requiring subacute care and rehabilitation; (2) Provides non-acute medical and skilled nursing care services, therapy and social services under the supervision of a licensed registered nurse on a 24-hour basis.
52 ROUTE 25A, Smithtown, NY 11787

Other Names 2

Doing Business AsSt Catherine Of Siena Nursing Home
Doing Business AsSt. Catherine Of Siena Nursing And Rehabilitation Care Center

Other Identifiers 1

Medicaid02060153NY

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

St. Catherine Of Siena Medical Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

194

Medicare enrollment records show 194 clinicians reassign Medicare billing to St. Catherine Of Siena Medical Center, which bills Medicare for the services they deliver. Of these, 12 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 9

Neurology137
Psychiatry33
Nurse Practitioner8
Critical Care (Intensivists)7
General Surgery2
Internal Medicine2
Pulmonary Disease2
Vascular Surgery2
1 other specialty1

Nearest to this location (20)

See all 194
Nurse Practitioner
NPI 1508196312
50 ROUTE 25A
Smithtown, NY 11787
(631) 862-3510
✔ PECOS0.1 mi
Nurse Practitioner
NPI 1689395477
50 NY-25A
Smithtown, NY 11787
(631) 784-7200
✔ PECOS✔ Accepts Medicare0.1 mi
Vascular Surgery
NPI 1316366404
48 ROUTE 25A STE 303
Smithtown, NY 11787
(631) 862-3635
✔ PECOS✔ Accepts Medicare0.1 mi
Critical Care (Intensivists)
NPI 1174790109
240 MIDDLE COUNTRY ROAD
Smithtown, NY 11787
(631) 444-2500
✔ PECOS2.0 mi
Psychiatry
NPI 1831303718
2 BROOKSITE DR SUITE 220
Smithtown, NY 11787
(631) 265-0909
✔ PECOS✔ Accepts Medicare2.2 mi
Geriatric Medicine
NPI 1548288954
267 E MAIN ST BLDG A
Smithtown, NY 11787
(631) 758-7003
✔ PECOS✔ Accepts Medicare2.4 mi
Nurse Practitioner
NPI 1467427229
100 SOUTHERN BLVD
Nesconset, NY 11767
(631) 361-8800
✔ PECOS✔ Accepts Medicare3.5 mi
Psychiatry
NPI 1376858993
101 NICOLLS ROAD DEPARTMENT OF PSYCHIATRY HSC, T-10-020
Stony Brook, NY 11790
(631) 444-0650
✔ PECOS6.2 mi
Internal Medicine
NPI 1508942574
360 HAWKINS AVE
Ronkonkoma, NY 11779
(631) 588-8393
✔ PECOS✔ Accepts Medicare6.8 mi
Nurse Practitioner
NPI 1346789906
17 5TH AVE
Northport, NY 11768
(908) 334-3501
✔ PECOS✔ Accepts Medicare7.1 mi
Psychiatry
NPI 1790816510
9 4TH AVE
Bay Shore, NY 11706
(631) 968-9102
✔ PECOS9.8 mi
Critical Care (Intensivists)
NPI 1053382465
370 EAST MAIN STREET
Bay Shore, NY 11706
(631) 666-5806
✔ PECOS9.8 mi
Vascular Surgery
NPI 1821037698
15 PARK AVE
Bay Shore, NY 11706
(631) 581-4400
✔ PECOS✔ Accepts Medicare10 mi
General Surgery
NPI 1437133550
325 PARK AVE
Huntington, NY 11743
(631) 351-3758
✔ PECOS✔ Accepts Medicare10 mi
Neurology
NPI 1316443575
DEPT OF INTERNAL MEDICINE HSC LEVEL 16-020
Stony Brook, NY 11794
(917) 836-8995
✔ PECOS✔ Accepts Medicare10 mi
Nurse Practitioner
NPI 1265595185
5505 NESCONSET HWY
Mount Sinai, NY 11766
(631) 509-5250
✔ PECOS✔ Accepts Medicare11 mi
Psychiatry
NPI 1598786956
1 PANSMITH LN
West Islip, NY 11795
(631) 210-7300
✔ PECOS✔ Accepts Medicare13 mi
General Surgery
NPI 1689852386
4 PHYLLIS DR STE B
Patchogue, NY 11772
(631) 289-4700
✔ PECOS✔ Accepts Medicare13 mi
Critical Care (Intensivists)
NPI 1306803317
972 BRUSH HOLLOW RD
Westbury, NY 11590
(516) 876-5555
✔ PECOS✔ Accepts Medicare19 mi
Pulmonary Disease
NPI 1669542015
120 MINEOLA BLVD STE 320
Mineola, NY 11501
(516) 663-3300
✔ PECOS✔ Accepts Medicare24 mi
See all 194 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D0981825

St Catherine Of Siena Nursing Home · Smithtown, NY
Active · expires Mar 26, 2027
CLIA Number33D0981825
Laboratory TypeSkilled Nursing Facility/Nursing Facility
Certificate Effective DateJanuary 9, 2001
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Jay L. Schneider
Laboratory Phone(631) 862-3900
Laboratory LocationSt Catherine Of Siena Nursing Home52 Rte 25A, Smithtown, NY 11787
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Nursing Home Quality Ratings CMS Care Compare

Quality ratings, staffing and inspection history for St Catherine Of Siena Nrsg And Rehab Care Center (CMS certification number 335821), from CMS Care Compare.

St Catherine Of Siena Nrsg And Rehab Care Center

Nursing home · Smithtown, NY
5/5 CMS Overall Rating
OwnershipNon profit - Corporation
CMS Certification Number335821
Certified Beds240 beds194 residents per day on average
Medicare & Medicaid Participant SinceMarch 1, 2000
Resident & Family CouncilResident council
Automatic sprinkler system

CMS Star Ratings

Quality Measures
Based on a select set of clinical quality measures.
5/5
Long-Stay Quality
Quality of care delivered to long-term residents.
5/5
Short-Stay Quality
Quality of care delivered to short-term and rehabilitation residents.
4/5
Staffing
Based on nursing staff hours relative to resident needs.
4/5
Weighted Health Inspection Score
Lower scores are better; the score summarizes deficiencies found on recent inspections.
15.33
Ratings are assigned by CMS on a one-to-five star scale; five is the highest. Categories without a current CMS rating are not shown.

Staffing & Turnover

Total Nurse Staffing
nurse aide 2.48 · LPN 1.06 · RN 0.7
4.25 hrs per resident per day
Weekend Nurse Staffing
3.73 hrs per resident per day
Physical Therapist Staffing
0.35 hrs per resident per day
Nursing Staff Turnover
Share of nursing staff who left the facility within the past year.
28.1%
Registered Nurse Turnover
19.5%
Higher staffing hours generally allow more direct care time per resident.

Inspections & Enforcement

Facility-Reported Incidents
2
Substantiated Complaints
0
Fines
0
Medicare Payment Denials
0
Total Penalties
0
Counts come from CMS inspections and complaint investigations over approximately the past three years. CMS Care Compare data as of October 1, 2024.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is St. Catherine Of Siena Medical Center's NPI number?

The NPI number for St. Catherine Of Siena Medical Center is 1497741763. It was assigned to this organization in the NPPES registry on September 22, 2005. The provider is doing business as St Catherine Of Siena Nursing Home and St. Catherine of Siena Nursing and Rehabilitation Care Center.

Where is St. Catherine Of Siena Medical Center located?

St. Catherine Of Siena Medical Center is located at 52 Route 25A, Smithtown, NY 11787. The listed phone number is (631) 862-3900.

What is St. Catherine Of Siena Medical Center's specialty?

The primary specialty registered for this NPI is Skilled Nursing Facility with taxonomy code 314000000X.

Is St. Catherine Of Siena Medical Center enrolled in Medicare?

Yes. St. Catherine Of Siena Medical Center is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through St. Catherine Of Siena Medical Center?

According to the CMS Revalidation Reassignment List (October 2026 release), 194 clinicians in 9 Medicare specialties reassign their Medicare billing to St. Catherine Of Siena Medical Center. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Neurology (137), Psychiatry (33) and Nurse Practitioner (8). Of these, 12 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does St. Catherine Of Siena Medical Center hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D0981825) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

Is St. Catherine Of Siena Medical Center a Medicare-certified nursing home?

Yes. St Catherine Of Siena Nrsg And Rehab Care Center is a Medicare-certified nursing home with 240 certified beds.

What quality rating does St. Catherine Of Siena Medical Center have?

CMS rates St Catherine Of Siena Nrsg And Rehab Care Center 5 out of 5 stars overall on Care Compare. The full measure detail is in the Nursing Home Quality Ratings section above.

When was this NPI record last updated?

The NPPES record for St. Catherine Of Siena Medical Center was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.