Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gwendolyn Larsen
Physical Therapist in Newton, MA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033401096
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Registry record
Entity type Individual (Type 1)
Name Gwendolyn Larsen
Sex Female
Practice address 305 Centre St, Newton, MA, 02458
Phone (617) 244-8480
Fax (617) 244-8312
Enumeration date May 10, 2011
Last updated in NPPES May 10, 2011
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 19402 (MA) 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
What is the NPI number for Gwendolyn Larsen?
The National Provider Identifier (NPI) for Gwendolyn Larsen is 1033401096, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gwendolyn Larsen practice?
The practice location on file with NPPES is in Newton, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Linda Lorenz Speech-Language Pathologist · Newton, MA NPI 1710976279 Virginia Mills Physical Therapist · Newton, MA NPI 1942281084 Valerie Graf Occupational Therapist · Newton, MA NPI 1952382087 Susan Diracco Physical Therapist · Newton, MA NPI 1770564809 Julie Kuhn Speech-Language Pathologist · Newton, MA NPI 1285615807 Community Rehab Care Speech-Language Pathologist · Newton, MA NPI 1891772133 Colleen Muse Occupational Therapist · Newton, MA NPI 1467523266 Katherine Gildea Speech-Language Pathologist · Newton, MA NPI 1720140197
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-10.