Andrew Thien Ngo, O.D.
Optometrist · Rialto, CA
Andrew Thien Ngo, O.D. is an optometrist with a practice address in Rialto, California, and NPI 1033542071, issued on Aug 13, 2013. Check the license (California 34436-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Andrew Thien Ngo
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 34436-TLG CA
3522AT OR
Self-reported in NPPES; status is on the state search - Practice location
- 1175 Renaissance Pkwy Ste 1050, Rialto, CA 92376
- Phone
- (623) 486-1888
- Enumerated
- Aug 13, 2013
- Record last updated
- Oct 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Verify Andrew Thien Ngo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34436-TLGCheck 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
18 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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.
Andrew Thien Ngo among 8,308 optometrist records in California
Andrew Thien Ngo, 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 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- 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).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Rialto → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Gary Freestone, ODRialto, CA 923761336214998
- Nauz Hassanshahi, ODRialto, CA 923761497266357
- Shine Kikawa, O.D.Rialto, CA 923761568736890
- Kimberly Peterson, O.D.Rialto, CA 923761922141175
- Susan Sawyer, O.D.Rialto, CA 923761518073709
- Phuong To, O.D.Rialto, CA 923761215070461
- Dennis Wong, O.D.Rialto, CA 923761245438365
- Dixon Wong, O.D.Rialto, CA 923761811196967
Common questions
What is Andrew Thien Ngo, O.D.'s NPI number?
Andrew Thien Ngo, O.D.'s National Provider Identifier (NPI) is 1033542071, issued on Aug 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Thien Ngo, O.D. located?
The NPPES record lists a practice address at 1175 Renaissance Pkwy Ste 1050, Rialto, CA, 92376. Phone: (623) 486-1888. Providers update this record themselves, so call before visiting.
How can I verify Andrew Thien Ngo, O.D.'s license?
NPPES lists California license number 34436-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Andrew Thien Ngo, O.D. prescribe under Medicare Part D?
In 2024, Andrew Thien Ngo, O.D. had 18 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.