NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Williams Oral and Maxillofacial Surgery, Prof. L.L.C.

Oral and Maxillofacial Surgery (Dentist) in Rapid City, SD · enumerated 2008 · authorized official Gregory Williams, President.

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

National Provider Identifier

1407091424

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Williams Oral and Maxillofacial Surgery, Prof. L.L.C.
Practice address 330 E Stumer Rd, Rapid City, SD, 57701
Phone (605) 348-3400
Fax (605) 348-1626
Enumeration date Dec 4, 2008
Last updated in NPPES Dec 4, 2008

Taxonomy & classification

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers Primary

Authorized official

Name Gregory Williams
Title President
Phone (605) 348-3400

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Williams Oral and Maxillofacial Surgery, Prof. L.L.C.?
Williams Oral and Maxillofacial Surgery, Prof. L.L.C. is registered in NPPES as a Oral and Maxillofacial Surgery (Dentist) (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-04.