William Tse, OD
Optometrist · Anaheim, CA
William Tse, OD is an optometrist with a practice address in Anaheim, California, and NPI 1881753598, issued on Dec 8, 2006. Check the license (California OPT10003T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Tse
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT10003T CA
Self-reported in NPPES; status is on the state search - Practice location
- 441 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (888) 988-2800
- Enumerated
- Dec 8, 2006
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050108000084); accepts Medicare assignment
- Medical or professional school
- Southern California College Of Optometry, 1992
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 441 N Lakeview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carol Ahmed, D.O.Family Medicine Physician1598962961
Verify William Tse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT10003TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average optometrist in 2024
56 Medicare Part D claims for 28 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Cyclosporine18 claims
- Prednisolone Acetate12 claims
- Erythromycin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupLa Palma, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Tse among 8,308 optometrist records in California
William Tse, 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. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1992 · median 2008 among the 3,573 with a school on file
- Record last updated2021 · 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).
115 optometrist records list a practice address in Anaheim
They are 115 of the 9,018 NPPES records with a practice address in Anaheim, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Anaheim → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Harry Charm, ODAnaheim Hills, CA 928071144215575
- Robert Downs, O.D.Anaheim, CA 928071093899817
- Catherine Heyman, ODAnaheim, CA 928071215030622
- Edward Kimmel, ODAnaheim, CA 928071801963665
- George Kusztyk, ODAnaheim, CA 928071780755678
- Ronald Lacroix, O.D.Anaheim, CA 928071548333560
- Dawn Lam, O.D.Anaheim, CA 928071720081029
- Gary Lovcik, O.D.Anaheim Hills, CA 928071427028562
Common questions
What is William Tse, OD's NPI number?
William Tse, OD's National Provider Identifier (NPI) is 1881753598, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Tse, OD located?
The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify William Tse, OD's license?
NPPES lists California license number OPT10003T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Tse, OD prescribe under Medicare Part D?
In 2024, William Tse, OD had 56 Medicare Part D claims for 28 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.