Williams Clinic of Stillwater Inc.
NPI 1215124144 · Specialist · Stillwater, OK
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Williams Clinic of Stillwater Inc. is a Specialist organization in Stillwater, OK (NPI 1215124144).
Provider details
- NPI number
- 1215124144
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Sidney Williams, President(450) 377-1121
- License
- OK9680 (OK)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-25
- Last updated
- 2011-09-12
Frequently asked questions
- What is Williams Clinic of Stillwater Inc.'s NPI number?
- Williams Clinic of Stillwater Inc.'s National Provider Identifier (NPI) is 1215124144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Williams Clinic of Stillwater Inc.?
- Williams Clinic of Stillwater Inc. is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Williams Clinic of Stillwater Inc. located?
- Williams Clinic of Stillwater Inc.'s practice location on file with NPPES is 801 S Washington St, Stillwater, OK 74074-4541.
- What is Williams Clinic of Stillwater Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Williams Clinic of Stillwater Inc. is (405) 377-1121.
- Does Williams Clinic of Stillwater Inc. accept Medicare?
- Williams Clinic of Stillwater Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Williams Clinic of Stillwater Inc.?
- The authorized official listed on Williams Clinic of Stillwater Inc.'s NPPES record is Sidney Williams, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Williams Clinic of Stillwater Inc.'s NPI active?
- Yes — Williams Clinic of Stillwater Inc.'s NPI (1215124144) is active in the NPPES registry as of the last update on 2011-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.