ST. CATHERINE OF SIENA MEDICAL CENTER
NPI 1497741763
Skilled Nursing Facility in Smithtown, NY
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
Specialties & Licenses
Other Names 2
Other Identifiers 1
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
194Medicare 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
Nearest to this location (20)
See all 194Stony Brook, NY 11790
Stony Brook, NY 11794
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, NYNursing 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, NYCMS Star Ratings
Staffing & Turnover
Inspections & Enforcement
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.