Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Prof. Sean Patrick Flanagan, ATC
Athletic Trainer in Northridge, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1245776129
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Registry record
Entity type Individual (Type 1)
Name Prof. Sean Patrick Flanagan
Credential ATC
Sex Male
Practice address California State University Northridge, 18111 Nordhhoff Street, Northridge, CA, 91330
Phone (818) 677-7507
Enumeration date Jan 16, 2017
Last updated in NPPES Jan 16, 2017
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary
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 Sean Flanagan practice?
The practice location on file with NPPES is in Northridge, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sean Flanagan?
The National Provider Identifier (NPI) for Sean Flanagan is 1245776129, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-16.