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William Arnett, DDS
NPI 1265405112 · General Practice Dentistry · Yountville, CA
William Arnett, DDS is a General Practice Dentistry provider in Yountville, CA (NPI 1265405112).
Provider details
- NPI number
- 1265405112
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- License
- 21687 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
220 California Dr
Yountville, CA 94599-1412
Phone: (707) 944-4772
Fax: (707) 948-2530
Street-level locationGet directions
Mailing address
220 California Drive
Yountville, CA 94599
Registry dates
- Enumerated
- 2006-02-10
- Last updated
- 2007-07-09
Frequently asked questions
- What is William Arnett's NPI number?
- William Arnett's National Provider Identifier (NPI) is 1265405112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Arnett's specialty?
- William Arnett is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is William Arnett located?
- William Arnett's practice location on file with NPPES is 220 California Dr, Yountville, CA 94599-1412.
- What is William Arnett's phone number?
- The practice phone number listed in the NPPES registry for William Arnett is (707) 944-4772.
- Is William Arnett's NPI active?
- Yes — William Arnett's NPI (1265405112) 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.