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Mercy Medical Center

Rehabilitation Hospital Unit in Rockville Centre, NY · enumerated 2006 · authorized official William Armstrong, Chief Financial Officer.

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

National Provider Identifier

1598724924

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Registry record

Entity type Organization (Type 2)
Legal business name Mercy Medical Center
Practice address 1000 N Village Ave, Rockville Centre, NY, 11570
Phone (516) 705-2525
Enumeration date Mar 23, 2006
Last updated in NPPES Jun 17, 2009

Taxonomy & classification

273Y00000X Rehabilitation Hospital Unit Hospital Units Primary

Authorized official

Name William Armstrong
Title Chief Financial Officer
Phone (516) 562-6902

Other identifiers

Identifier Type State Issuer
000375 Other NY BLUE CROSS
02969102 Medicaid NY -

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

What is the NPI number for Mercy Medical Center?
The NPI for Mercy Medical Center is 1598724924, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mercy Medical Center?
NPPES lists William Armstrong (Chief Financial Officer) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-17.