NPIMap

Organization Active NPI

St. Catherine of Siena Medical Center

  • Skilled Nursing Facility
  • Smithtown, NY
National Provider Identifier
1497741763
Registry record updated Apr 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Skilled Nursing FacilityTaxonomy code 314000000X
License
5157312N Issued in NY
Legal business name
ST. CATHERINE OF SIENA MEDICAL CENTER
Practice address
52 Route 25a
Smithtown, NY 11787-1346
Phone
(631) 862-3900
Fax
(631) 862-3983
NPI assigned
Sep 22, 2005
Organization subpart
Yes
Parent organization
ST. CATHERINE OF SIENA MEDICAL CENTERAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Apr 23, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Christopher Nelson
Title
President
Phone
(516) 520-2301

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Skilled Nursing Facility 314000000X 5157312N NY Primary

Addresses

Primary practice location

52 Route 25a
Smithtown, NY 11787-1346

Mailing address

52 Route 25a
Smithtown, NY 11787-1346
Phone (631) 862-3905

Other identifiers 1

IdentifierTypeStateIssuer
02060153MedicaidNY

Other names 2

  • ST CATHERINE OF SIENA NURSING HOME Doing business as
  • St. Catherine of Siena Nursing and Rehabilitation Care Center Doing business as

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address medicalrecords.scsnh@matrixcaredirect.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20041213000681 NY Part B Supplier - Clinic/Group Practice 0941267876 Receives reassigned benefits from 196 practitioners
2 other NPIs on this enrollment
This NPI is an additional NPI on the enrollment
Practice locations: Smithtown, NY
O20060808000372 NY Part A Provider - Skilled Nursing Facility 0941267876 Practice locations: Smithtown, NY

Skilled nursing facility certification: CCN 335821

Legal name
ST CATHERINE OF SIENA MEDICAL CENTER
Doing business as
ST CATHERINE OF SIENA NURSING AND REHABILITATION CENTER
Certification status
Active
Provider type (POS)
Nursing home – SNF/NF dual certification
Participating since
Mar 1, 2000
Last certification
Mar 22, 2024
Beds
240
Ownership / control type
Nonprofit Corporation
Organization structure
CorporationNon-profit
Incorporated
Nov 10, 1999 in NY
Enrollment address
52 Route 25a
Smithtown, NY 11787-1346
Nursing home name
ST CATHERINE OF SIENA NURSING AND REHABILITATION CARE CENTER

Other NPIs with the same Medicare PAC ID 4

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

Other NPIs on the same Medicare enrollment 2

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

Care Compare: Nursing home

Medicare Care Compare
Listed as
St Catherine Of Siena Nursing and Rehabilitation CCCN 335821
Overall star rating
3 of 5
Health inspections
3 of 5
Staffing
4 of 5
Quality measures
4 of 5
Type
Medicare and Medicaid
Ownership
Non profit - Corporation
Certified
Mar 1, 2000
Medicare certification status
ActiveFrom the Provider of Services file
Certified beds
240218.4 residents per day on average
Penalties (3 years)
1Fines totaling $64,496

Processed by Care Compare on Aug 1, 2026.

National Provider Directory

National Provider Directory
Tax ID family
St Catherine of Siena E8 organizations share this tax ID, including this one
Part of
St Catherine of Siena E

Other organizations with this tax ID 7

Organizations that report the same tax identification number in the National Provider Directory.

Ownership & related parties

All disclosed owners & managing parties 11

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Stephen Pietrowski Individual Corporate DirectorTrustee Jan 1, 2014
John Chowske Individual Corporate OfficerChief Administrative Officer Mar 2, 2015 100%
W-2 Managing EmployeeChief Administrative Officer Mar 2, 2015 100%
Justin McCarthy Individual Corporate DirectorTrustee Jan 1, 2014
Thomas E Christman Individual Corporate DirectorBoard Member Jan 1, 2017
Dennis J Verzi Individual Corporate OfficerEvp/Chief Administrative Officer Sep 1, 2011 50%
W-2 Managing EmployeeEvp/Chief Administrative Officer Sep 1, 2011 50%
Operational/Managerial ControlEvp/Chief Administrative Officer Sep 1, 2011 50%
John Haight Individual Corporate OfficerDirector of Finance Sep 1, 2011
John O'Brien Individual Corporate DirectorTrustee Jan 1, 2014
Douglas Celiberti Individual Corporate DirectorTrustee Jan 1, 2013
Peter Dagher Individual Corporate DirectorTrustee Jan 1, 2014
Michael C Lambert Individual Corporate DirectorTrustee Jan 1, 2014
Jennifer Hoffman Individual Corporate DirectorTrustee Jan 1, 2013

Practitioners & affiliated clinicians

Practitioners 102

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

View all 102

Affiliated clinicians 5

Clinicians who list this facility as an affiliation in Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1127347200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1776902400000",
    "number": "1497741763",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "52 ROUTE 25A",
            "city": "SMITHTOWN",
            "state": "NY",
            "postal_code": "117871346",
            "telephone_number": "631-862-3905"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "52 ROUTE 25A",
            "city": "SMITHTOWN",
            "state": "NY",
            "postal_code": "117871346",
            "telephone_number": "631-862-3900",
            "fax_number": "631-862-3983"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ST. CATHERINE OF SIENA MEDICAL CENTER",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "ST. CATHERINE OF SIENA MEDICAL CENTER",
        "enumeration_date": "2005-09-22",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A",
        "authorized_official_last_name": "NELSON",
        "authorized_official_first_name": "CHRISTOPHER",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "516-520-2301"
    },
    "taxonomies": [
        {
            "code": "314000000X",
            "taxonomy_group": "",
            "desc": "Skilled Nursing Facility",
            "state": "NY",
            "license": "5157312N",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02060153",
            "state": "NY"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "medicalrecords.scsnh@matrixcaredirect.com",
            "affiliation": "N",
            "endpointDescription": "Medical records",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "52 Route 25A",
            "city": "Smithtown",
            "state": "NY",
            "country_code": "US",
            "postal_code": "117871346",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "organization_name": "ST CATHERINE OF SIENA NURSING HOME",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "St. Catherine of Siena Nursing and Rehabilitation Care Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Smithtown, NY

Sources for this page

Verify at the official NPI Registry.