IndividualActive
William Southard
NPI 1710196563 · Audiologist · Yountville, CA
William Southard is a Audiologist provider in Yountville, CA (NPI 1710196563).
Provider details
- NPI number
- 1710196563
- Entity type
- Individual
- Primary specialty
- AudiologistSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 393 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
Detailed profile(89/100 index)
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
220 California Dr
Yountville, CA 94599-1412
Phone: (707) 944-4600
Street-level locationGet directions
Mailing address
567 7th St W
Sonoma, CA 95476-6427
Registry dates
- Enumerated
- 2007-05-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Southard's NPI number?
- William Southard's National Provider Identifier (NPI) is 1710196563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Southard's specialty?
- William Southard is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).
- Where is William Southard located?
- William Southard's practice location on file with NPPES is 220 California Dr, Yountville, CA 94599-1412.
- What is William Southard's phone number?
- The practice phone number listed in the NPPES registry for William Southard is (707) 944-4600.
- Is William Southard's NPI active?
- Yes — William Southard's NPI (1710196563) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.