William Shiomi, OD
NPI 1720058811 · Optometrist · Carson, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Shiomi, OD is a Optometrist provider in Carson, CA (NPI 1720058811).
Provider details
- NPI number
- 1720058811
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5335T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-01-23
- Last updated
- 2008-06-10
Frequently asked questions
- What is William Shiomi's NPI number?
- William Shiomi's National Provider Identifier (NPI) is 1720058811, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Shiomi's specialty?
- William Shiomi is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is William Shiomi located?
- William Shiomi's practice location on file with NPPES is 20700 S Avalon Blvd, Carson, CA 90746-3701.
- What is William Shiomi's phone number?
- The practice phone number listed in the NPPES registry for William Shiomi is (310) 532-2622.
- Does William Shiomi accept Medicare?
- William Shiomi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Shiomi's NPI active?
- Yes — William Shiomi's NPI (1720058811) is active in the NPPES registry as of the last update on 2008-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.