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Southside Hospital

Primary Care Clinic/Center in Central Islip, NY · enumerated 2006 · authorized official Douglas Riggs, Rpac.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1184798977

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Registry record

Entity type Organization (Type 2)
Legal business name Southside Hospital
Other name <Unavail>
Practice address 45 W Suffolk Ave, Central Islip, NY, 11722
Phone (631) 853-2710
Enumeration date Nov 20, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities · License 006564-1 (NY) Primary

Authorized official

Name Douglas Riggs
Title Rpac
Phone (631) 853-2710

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.
Where is Southside Hospital located?
The practice location on file with NPPES is in Central Islip, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.