Sidney Williams, DDS
NPI 1265518930 · General Practice Dentistry · Bellingham, WA
Enrolled with Medicare as Order and Referring Only - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sidney Williams, DDS is a General Practice Dentistry provider in Bellingham, WA (NPI 1265518930).
Provider details
- NPI number
- 1265518930
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- DE00008880 (WA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-10-27
- Last updated
- 2007-07-09
Frequently asked questions
- What is Sidney Williams's NPI number?
- Sidney Williams's National Provider Identifier (NPI) is 1265518930, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Williams's specialty?
- Sidney Williams is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Sidney Williams located?
- Sidney Williams's practice location on file with NPPES is 4455 Cordata Pkwy, Bellingham, WA 98226-8037.
- What is Sidney Williams's phone number?
- The practice phone number listed in the NPPES registry for Sidney Williams is (360) 671-3225.
- Does Sidney Williams accept Medicare?
- Sidney Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sidney Williams's NPI active?
- Yes — Sidney Williams's NPI (1265518930) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.