Shek On Gun, OD
Optometrist · Tustin, CA
Shek On Gun, OD is an optometrist with a practice address in Tustin, California, and NPI 1396388906, issued on Oct 26, 2019. Check the license (California 34445TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shek On Gun
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 34445TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 528 E 1St St Ste B, Tustin, CA 92780
- Phone
- (657) 757-2020
- Enumerated
- Oct 26, 2019
- Record last updated
- Nov 7, 2025
- Fax
- (657) 478-7761
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Shek On Gun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34445TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average optometrist in 2024
16 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 94% of claims.
Most prescribed
- Latanoprost11 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.
Industry payments in 2024: $125.00
1 payment: food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Shek On Gun among 8,308 optometrist records in California
Shek On Gun, 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2025 · 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).
33 optometrist records list a practice address in Tustin
They are 33 of the 2,221 NPPES records with a practice address in Tustin, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Tustin → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Ghezal Abdali, O.D.Tustin, CA 927801770688640
- Lowell Booth, ODTustin, CA 927801750361424
- Brett Bowman, O.D.Tustin, CA 927801053464818
- Cynthia Broady, O.D.Tustin, CA 927801154452118
- Darren Brown, O.D.Tustin, CA 927801073562740
- Susan Brown, O.D.Tustin, CA 927801124179361
- Elizabeth Chung, O.D.Tustin, CA 927801407011273
- Vy Duong, O.D.Tustin, CA 927801326103276
Common questions
What is Shek On Gun, OD's NPI number?
Shek On Gun, OD's National Provider Identifier (NPI) is 1396388906, issued on Oct 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Shek On Gun, OD located?
The NPPES record lists a practice address at 528 E 1St St Ste B, Tustin, CA, 92780. Phone: (657) 757-2020. Providers update this record themselves, so call before visiting.
How can I verify Shek On Gun, OD's license?
NPPES lists California license number 34445TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Shek On Gun, OD prescribe under Medicare Part D?
In 2024, Shek On Gun, OD had 16 Medicare Part D claims; 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.