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Williams Clinic of Stillwater Inc.

Specialist in Stillwater, OK · enumerated 2007 · authorized official Sidney Williams, President.

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

National Provider Identifier

1215124144

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Registry record

Entity type Organization (Type 2)
Legal business name Williams Clinic of Stillwater Inc.
Practice address 801 S Washington St, Stillwater, OK, 74074
Phone (405) 377-1121
Fax (405) 624-9201
Enumeration date Sep 25, 2007
Last updated in NPPES Sep 12, 2011

Taxonomy & classification

174400000X Specialist Other Service Providers · License OK9680 (OK) Primary

Authorized official

Name Sidney Williams
Title President
Phone (450) 377-1121

Other identifiers

Identifier Type State Issuer
200343660A Medicaid OK -

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 is the NPI number for Williams Clinic of Stillwater Inc.?
The NPI for Williams Clinic of Stillwater Inc. is 1215124144, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Williams Clinic of Stillwater Inc.?
NPPES lists Sidney Williams (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-12.