Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James Derek Williamson

Physical Therapy Assistant in Bluffton, SC · enumerated 2019.

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

National Provider Identifier

1225699879

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Registry record

Entity type Individual (Type 1)

Name James Derek Williamson

Sex Male

Practice address 254 Red Cedar St Ste 9, Bluffton, SC, 29910

Phone (843) 970-2899

Enumeration date Jun 25, 2019

Last updated in NPPES Jun 25, 2019

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 3582 (SC) 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.

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Frequently asked questions

Where does James Williamson practice?

The practice location on file with NPPES is in Bluffton, SC. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for James Williamson?

The National Provider Identifier (NPI) for James Williamson is 1225699879, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-25.