Doctor profile · Federal record

Dr. Thu Phan, OD

Optometrist (CMS: Optometry) · Fullerton, CA

  • NPI 1679172142
  • Accepts Medicare
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1909 W Malvern Ave
Fullerton, CA 928332177
(714) 992-8020

Credentials & registration

NPPES · NUCC
NPI registered
October 2020 — 6 yrs on file
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #34712

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679172142. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$1,515
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 16 13 $95

In context: peer comparison

Among 14 peers in Fullerton Optometrist, average services per provider: 111. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$570
Transactions
8
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 5 $325.67
Lkc Technologies, INC. 1 $94.53
CooperVision INC. 1 $82.44
Visionix USA, INC 1 $67.17

By nature of payment

Food and Beverage
$570

Frequently asked questions

Auto-generated from federal data
What is Dr. Thu Phan's medical specialty?
Dr. Thu Phan practices Optometrist in Fullerton, CA.
Where does Dr. Thu Phan practice?
Dr. Thu Phan practices at 1909 W Malvern Ave, Fullerton, CA 928332177. Office phone: 7149928020.
What is Dr. Thu Phan's NPI?
Dr. Thu Phan's National Provider Identifier (NPI) is 1679172142, issued by NPPES.
Does Dr. Thu Phan accept Medicare assignment?
Yes. Dr. Thu Phan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thu Phan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.