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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Kathryn Elizabeth Johnson, PT, DPT, MS

Orthopedic Physical Therapist in Silver Spring, MD · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104416452

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Registry record

Entity type Individual (Type 1)
Name Kathryn Elizabeth Johnson
Credential PT, DPT, MS
Sex Female
Practice address Silver Spring, MD, 20902
Enumeration date Jan 21, 2021
Last updated in NPPES Jan 10, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 28354 (MD) Primary
2251S0007X Sports Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
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.

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Frequently asked questions

What specialty is Kathryn Johnson?
Kathryn Johnson is registered in NPPES with the primary taxonomy of Orthopedic 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-10.