William G Sinclair Jr DMD Inc
NPI 1861612590 · Orthodontics and Dentofacial Orthopedics Dentistry · Claremont, CA
William G Sinclair Jr DMD Inc is a Orthodontics and Dentofacial Orthopedics Dentistry organization in Claremont, CA (NPI 1861612590).
Provider details
- NPI number
- 1861612590
- Entity type
- Organization
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Organization subpart
- No
- Authorized official
- William Sinclair, President Orthodontist(909) 621-3093
- License
- 17625 (CA)
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
- 2007-04-26
- Last updated
- 2020-08-22
Frequently asked questions
- What is William G Sinclair Jr DMD Inc's NPI number?
- William G Sinclair Jr DMD Inc's National Provider Identifier (NPI) is 1861612590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William G Sinclair Jr DMD Inc?
- William G Sinclair Jr DMD Inc is classified in the NPPES registry as Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is William G Sinclair Jr DMD Inc located?
- William G Sinclair Jr DMD Inc's practice location on file with NPPES is 328 N Indian Hill Blvd, Claremont, CA 91711.
- What is William G Sinclair Jr DMD Inc's phone number?
- The practice phone number listed in the NPPES registry for William G Sinclair Jr DMD Inc is (909) 621-3093.
- Who is the authorized official for William G Sinclair Jr DMD Inc?
- The authorized official listed on William G Sinclair Jr DMD Inc's NPPES record is William Sinclair, President Orthodontist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William G Sinclair Jr DMD Inc's NPI active?
- Yes — William G Sinclair Jr DMD Inc's NPI (1861612590) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.