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Onix Silverside LLC

Skilled Nursing Facility in Wilmington, DE · enumerated 2012 · authorized official Rebecca Margis, Corporate Finance Director.

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

National Provider Identifier

1023368719

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Registry record

Entity type Organization (Type 2)
Legal business name Onix Silverside LLC
Other name <Unavail>
Practice address 3322 Silverside Rd, Wilmington, DE, 19810
Phone (302) 478-8889
Fax (484) 731-1234
Enumeration date Sep 11, 2012
Last updated in NPPES Dec 18, 2019

Taxonomy & classification

313M00000X Nursing Facility/Intermediate Care Facility Nursing & Custodial Care Facilities Secondary
314000000X Skilled Nursing Facility Nursing & Custodial Care Facilities Primary

Authorized official

Name Rebecca Margis
Title Corporate Finance Director
Phone (484) 731-2500

Other identifiers

Identifier Type State Issuer
1023368719 Medicaid DE -

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 2019-12-18. Verify at npiregistry.cms.hhs.gov.
Where is Onix Silverside LLC located?
The practice location on file with NPPES is in Wilmington, DE.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-18.