Cindy Nguyen, OD
Optometrist · Upland, CA
Cindy Nguyen, OD is an optometrist with a practice address in Upland, California, and NPI 1811541097, issued on Jul 26, 2019. Check the license (California 34641, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cindy Nguyen
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 34641 CA
18004178A IN
Self-reported in NPPES; status is on the state search - Practice location
- 300 N Euclid Ave Ste A, Upland, CA 91786
- Phone
- (909) 982-9002
- Enumerated
- Jul 26, 2019
- Record last updated
- Apr 3, 2025
- Fax
- (909) 982-9912
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 300 N Euclid Ave Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Wang, O.D.Optometrist1750466264
Verify Cindy Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 34641Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $124.97
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.
Cindy Nguyen among 8,308 optometrist records in California
Cindy Nguyen, 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).
24 optometrist records list a practice address in Upland
They are 24 of the 1,846 NPPES records with a practice address in Upland, and 8,308 optometrist records in California.
All 8,308 in California → Every provider in Upland → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Bruce Duvall, O.D.Upland, CA 917861912064130
- Richard Gray, O.D.Upland, CA 917861174802425
- Jon Henley, O.D.Upland, CA 917861619998192
- Neil Katz, O.D.Upland, CA 917861801885132
- Marilyn Katz, O.D.Upland, CA 917861386633618
- Li Li, O.D.Upland, CA 917861558741389
- Lethuy Nguyen, O.D.Upland, CA 917861033285689
- Theresa Sarno, O.D.Upland, CA 917861346231305
Common questions
What is Cindy Nguyen, OD's NPI number?
Cindy Nguyen, OD's National Provider Identifier (NPI) is 1811541097, issued on Jul 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Cindy Nguyen, OD located?
The NPPES record lists a practice address at 300 N Euclid Ave Ste A, Upland, CA, 91786. Phone: (909) 982-9002. Providers update this record themselves, so call before visiting.
How can I verify Cindy Nguyen, OD's license?
NPPES lists California license number 34641, 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. 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.