Doctor profile · Federal record

Dr. Diana Nguyen, O. D.

Optometrist · Santa Ana, CA

  • NPI 1649499229
  • 19 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
903 S. Bristol St. Unit A
Santa Ana, CA 927032114
(714) 200-4261
Mailing address
903 S Bristol St. Unit A
Santa Ana, CA 927032114

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
August 19, 2021
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #OPT12457 TPL

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649499229. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$151
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 3 $150.63

By nature of payment

Food and Beverage
$151

Frequently asked questions

Auto-generated from federal data
What is Dr. Diana Nguyen's medical specialty?
Dr. Diana Nguyen practices Optometrist in Santa Ana, CA.
Where does Dr. Diana Nguyen practice?
Dr. Diana Nguyen practices at 903 S. Bristol St. Unit A, Santa Ana, CA 927032114. Office phone: 7142004261.
What is Dr. Diana Nguyen's NPI?
Dr. Diana Nguyen's National Provider Identifier (NPI) is 1649499229, issued by NPPES.