Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jillian Therese Witwicki
Physical Therapist in Derry, NH · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780302273
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Registry record
Entity type Individual (Type 1)
Name Jillian Therese Witwicki
Sex Female
Practice address 23 Crystal Ave Unit 2a, Derry, NH, 03038
Phone (603) 437-3338
Enumeration date Aug 19, 2022
Last updated in NPPES Aug 19, 2022
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5048 (NH) 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 Jillian Witwicki practice?
The practice location on file with NPPES is in Derry, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jillian Witwicki?
The National Provider Identifier (NPI) for Jillian Witwicki is 1780302273, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-19.