Doctor profile · Federal record

Dr. Mai Phuong Nguyen, MD

Internal Medicine Physician · Fountain Valley, CA

  • NPI 1265450266
  • 20 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16027 Brookhurst St # I-110
Fountain Valley, CA 927081551
(844) 527-8620
fax (844) 342-5278
Mailing address
16027 Brookhurst St # G110
Fountain Valley, CA 927081551

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
October 14, 2021
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A61956
Medicaid
CA #00A619560

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265450266. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 1 $23.00

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
41
Patients
0
Total drug cost
$6,501
Drug Type Claims Patients Total cost
Mirtazapine Generic 17 0 $463
Amlodipine Besylate Generic 12 0 $185
Myrbetriq (Mirabegron) Brand 12 0 $5,854

Frequently asked questions

Auto-generated from federal data
What is Dr. Mai Phuong Nguyen's medical specialty?
Dr. Mai Phuong Nguyen practices Internal Medicine Physician in Fountain Valley, CA.
Where does Dr. Mai Phuong Nguyen practice?
Dr. Mai Phuong Nguyen practices at 16027 Brookhurst St # I-110, Fountain Valley, CA 927081551. Office phone: 8445278620.
What is Dr. Mai Phuong Nguyen's NPI?
Dr. Mai Phuong Nguyen's National Provider Identifier (NPI) is 1265450266, issued by NPPES.