William S. Arnett, DDS
General Practice Dentistry · Yountville, CA
William S. Arnett, DDS is a general practice dentistry with a practice address in Yountville, California, and NPI 1265405112, issued on Feb 10, 2006. Check the license (California 21687, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William S. Arnett
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 21687 CA
Self-reported in NPPES; status is on the state search - Practice location
- 220 California Dr, Yountville, CA 94599
- Phone
- (707) 944-4772
- Enumerated
- Feb 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (707) 948-2530
- Entity
- Type 1 · individual
Also registered at 220 California Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Monica Banchero-Hasson, M.D.Internal Medicine Physician1649244534
- Larry Bencich, PH.D.Clinical Psychologist1578700381
- John Budinger, D.O.Psychiatry Physician1003880386
Verify William S. Arnett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 21687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4 general practice dentistry records list a practice address in Yountville
They are 4 of the 86 NPPES records with a practice address in Yountville, and 17,852 general practice dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4 in Yountville → All 17,852 in California → Every provider in Yountville →
Other general practice dentistry records in California
- Ronald Aanerud, DDSSan Diego, CA1871752931
- Steven Aaronson, D.D.S.Santa Monica, CA1265455851
- Shahrzad Aarup, DDSPomona, CA1265784367
- Al Abad, DDSSan Jose, CA1104992148
- Erwin Abad, D.D.S.Canoga Park, CA1861590093
- Francine Abad, DDSSan Francisco, CA1942700810
- Maria Abad, D.D.S.Norwalk, CA1215006754
- Mark Ryan Abad, DDSDaly City, CA1770357394
- Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
- Ernesto Abadilla, DDSPalm Desert, CA1508063801
Common questions
What is William S. Arnett, DDS's NPI number?
William S. Arnett, DDS's National Provider Identifier (NPI) is 1265405112, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William S. Arnett, DDS located?
The NPPES record lists a practice address at 220 California Dr, Yountville, CA, 94599. Phone: (707) 944-4772. Providers update this record themselves, so call before visiting.
How can I verify William S. Arnett, DDS's license?
NPPES lists California license number 21687, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.