Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Denise Callahan, P.T.
Physical Therapist in Napa, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225188717
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Registry record
Entity type Individual (Type 1)
Name Denise Callahan
Credential P.T.
Sex Female
Practice address 1515 Trancas St, Napa, CA, 94558
Phone (707) 258-4541
Enumeration date Jan 10, 2007
Last updated in NPPES Jan 3, 2022
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT20072 (CA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
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 Denise Callahan practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Denise Callahan?
The National Provider Identifier (NPI) for Denise Callahan is 1225188717, 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 2022-01-03.