Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Caitlin Souther
Physical Therapist in Largo, FL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003511411
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Registry record
Entity type Individual (Type 1)
Name Caitlin Souther
Sex Female
Practice address 3391 E Bay Dr, Largo, FL, 33771
Phone (727) 238-3062
Enumeration date Apr 4, 2023
Last updated in NPPES Mar 24, 2026
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT41547 (FL) 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 Caitlin Souther practice?
The practice location on file with NPPES is in Largo, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Caitlin Souther?
The National Provider Identifier (NPI) for Caitlin Souther is 1003511411, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-24.