Vivian Yen Iles, O.D.
Optometrist · Manteca, CA
Vivian Yen Iles, O.D. is an optometrist with a practice address in Manteca, California, and NPI 1952604357, issued on Dec 8, 2010. Check the license (California 15424, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Vivian Yen Iles
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 15424 CA
OPT15424-TLG CA
0003002 CO
Self-reported in NPPES; status is on the state search - Practice location
- 302 Northgate Dr, Manteca, CA 95336
- Phone
- (866) 682-4842
- Enumerated
- Dec 8, 2010
- Record last updated
- Feb 11, 2022
- Fax
- (209) 239-5295
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Vivian Yen Iles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average optometrist in 2024
73 Medicare Part D claims for 37 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Cyclosporine32 claims
- Latanoprost15 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.
Vivian Yen Iles among 8,308 optometrist records in California
Vivian Yen Iles, O.D. 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 2010, is newer than 59% of them.
- NPI issued2010 · 59% of these records are older, 39% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2022 · 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Manteca → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Gregory Miller, ODManteca, CA 953361043282262
- Hanh Judy Nguyen, O.D.Manteca, CA 953361588911820
- Frederick Stellhorn, O.D.Manteca, CA 953361457346330
- Khanh Dao, O.D.Manteca, CA 953371992834725
- Kimi KaurManteca, CA 953371164165692
- Michael Lavieri, ODManteca, CA 953371730263120
- Tram Ton-Tran, ODManteca, CA 953371457962193
- Protiva Khan, ODMariposa, CA 953381902327240
Common questions
What is Vivian Yen Iles, O.D.'s NPI number?
Vivian Yen Iles, O.D.'s National Provider Identifier (NPI) is 1952604357, issued on Dec 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Yen Iles, O.D. located?
The NPPES record lists a practice address at 302 Northgate Dr, Manteca, CA, 95336. Phone: (866) 682-4842. Providers update this record themselves, so call before visiting.
How can I verify Vivian Yen Iles, O.D.'s license?
NPPES lists California license number 15424, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Vivian Yen Iles, O.D. prescribe under Medicare Part D?
In 2024, Vivian Yen Iles, O.D. had 73 Medicare Part D claims for 37 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.