NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. William S Walker

General Practice Dentistry in Timmonsville, SC · enumerated 2007 · authorized official William Walker, Dentist.

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

National Provider Identifier

1609081504

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Dr. William S Walker
Practice address 101 W Market St, Timmonsville, SC, 29161
Fax (843) 346-5792
Enumeration date May 14, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 2217 (SC) Primary

Authorized official

Name William Walker
Title Dentist

Other identifiers

Identifier Type State Issuer
Z22173 Medicaid SC -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Dr. William S Walker?
The NPI for Dr. William S Walker is 1609081504, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Dr. William S Walker?
NPPES lists William Walker (Dentist) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.