William Ken Shiomi, OD
Optometrist · Carson, CA
William Ken Shiomi, OD is an optometrist with a practice address in Carson, California, and NPI 1720058811, issued on Jan 23, 2006. Check the license (California 5335T, 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 Ken Shiomi
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 5335T CA
Self-reported in NPPES; status is on the state search - Practice location
- 20700 S Avalon Blvd, Carson, CA 90746
- Phone
- (310) 532-2622
- Enumerated
- Jan 23, 2006
- Record last updated
- Jun 10, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101105000259); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 1971
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify William Ken Shiomi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 5335TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Ken Shiomi among 8,308 optometrist records in California
William Ken Shiomi, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileNo · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1971 · median 2008 among the 3,573 with a school on file
- Record last updated2008 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
20 optometrist records list a practice address in Carson
They are 20 of the 806 NPPES records with a practice address in Carson, and 8,308 optometrist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 8,308 in California → Every provider in Carson → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Sofia BernabeCarson, CA 907461811421985
- Ifeoma Ezeani, ODCarson, CA 907461407816911
- Joel Hyun, ODCarson, CA 907461194408781
- Jasmine AngCarson, CA 907451639979487
- Seema Dave, ODCarson, CA 907451942644133
- Christine Hur, ODCarson, CA 907451093397614
- Grace Jung, O.D.Carson, CA 907451790167492
- Hong Ku, O.D.Carson, CA 907451669522264
Common questions
What is William Ken Shiomi, OD's NPI number?
William Ken Shiomi, OD's National Provider Identifier (NPI) is 1720058811, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Ken Shiomi, OD located?
The NPPES record lists a practice address at 20700 S Avalon Blvd, Carson, CA, 90746. Phone: (310) 532-2622. Providers update this record themselves, so call before visiting.
How can I verify William Ken Shiomi, OD's license?
NPPES lists California license number 5335T, 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.