Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Katherine Larson
Physical Therapist in Wenham, MA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902275332
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Registry record
Entity type Individual (Type 1)
Name Katherine Larson
Sex Female
Practice address 255 Grapevine Rd, Wenham, MA, 01984
Phone (978) 867-4095
Enumeration date Sep 16, 2015
Last updated in NPPES Jun 9, 2023
Taxonomy & licenses
2251N0400X Neurology Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 30643 (FL) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 22348 (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 specialty is Katherine Larson?
Katherine Larson is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Marie Lucey Physical Therapist · Wenham, MA NPI 1033108584 Elisabeth Whitley Physical Therapist · Wenham, MA NPI 1497744957 Marie Lucey, PC Physical Therapy Clinic/Center · Wenham, MA NPI 1588643092 Gordon College Physical Therapist · Wenham, MA NPI 1831375278 Stacy Pineda Physical Therapist · Wenham, MA NPI 1154550481 Harmeling Physical Therapy and Sports Fitness Occupational Therapist · Wenham, MA NPI 1114251758 Emily Righter Physical Therapist · Wenham, MA NPI 1053619452 Mckenzie Distefano Physical Therapist · Wenham, MA NPI 1225462559
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-09.