Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Stephen Joseph Gallagher, PHARMACIST
Pharmacist in Valhalla, NY · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669647681
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Registry record
Entity type Individual (Type 1)
Name Mr. Stephen Joseph Gallagher
Credential PHARMACIST
Sex Male
Practice address Westchester Medical Center, Grasslands Road, Valhalla, NY, 10595
Phone (914) 493-5136
Fax (914) 493-5055
Enumeration date Apr 30, 2008
Last updated in NPPES Apr 30, 2008
Taxonomy & licenses
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.
Frequently asked questions
Where does Stephen Gallagher practice?
The practice location on file with NPPES is in Valhalla, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Stephen Gallagher?
The National Provider Identifier (NPI) for Stephen Gallagher is 1669647681, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-30.